Open Geospatial Consortium
Publication Date: 2014-02-25
Approval Date: 2013-06-22
Submission Date: 2013-02-27
Reference URL for this document: http://www.opengis.net/doc/BP/sos-profile-in-situ/1.0
Version: 1.0
Reference number of this document: 11-169r1
Category: Best Practice
Editor(s): Simon Jirka, Christoph Stasch, Arne Bröring

OGC® Best Practice for Sensor Web Enablement
Lightweight SOS Profile for Stationary In-Situ Sensors

Copyright © 2014 Open Geospatial Consortium
To obtain additional rights of use, visit http://www.opengeospatial.org/legal/.

Warning
This document defines an OGC Best Practices on a particular technology orapproach related to an OGC standard. This document is not an OGC Standard andmay not be referred to as an OGC Standard. It is subject to change without notice.
However, this document is an official position of the OGC membership on thisparticular technology topic.

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OGC® Best PracticeApproved for publication as a BP
English11-169r1

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Contents

Page

1	
  

Scope ....................................................................................................................... 1	
  

2	
  

Normative references .............................................................................................. 2	
  

3	
  

Terms and definitions ............................................................................................. 3	
  

4	
  

4.1	
  

Conventions ............................................................................................................ 4	
  Abbreviated terms .............................................................................................. 4	
  

5	
  

Overview ................................................................................................................. 5	
  

6	
  

Observations and Measurements ............................................................................ 7	
  
6.1	
  
Introduction ........................................................................................................ 7	
  
6.2	
  
Common Observation Properties ....................................................................... 7	
  
6.3	
  
Observation Types .............................................................................................. 8	
  

7	
  

7.1	
  
7.2	
  

Sensor Model Language ....................................................................................... 10	
  Introduction ...................................................................................................... 10	  Profile-specific Schema of a Sensor System .................................................... 10	
  

8	
  

Sensor Observation Service .................................................................................. 12	
  
8.1	
  
Introduction ...................................................................................................... 12	
  
8.2	
  
SOS Operations ................................................................................................ 12	
  8.2.1	
  
GetCapabilities ............................................................................................. 12	
  8.2.2	
  DescribeSensor ............................................................................................ 12	
  8.2.3	
  GetObservation ............................................................................................ 12	
  8.2.4	
  
GetFeatureOfInterest.................................................................................... 13	
  

9	
  

Bibliography ......................................................................................................... 15	
  

10	
  
Examples: Observations & Measurements ........................................................... 16	
  10.1	
   Measurement .................................................................................................... 16	
  10.2	
   CountObservation ............................................................................................. 17	
  10.3	
   TruthObservation.............................................................................................. 18	
  10.4	
   CategoryObservation ........................................................................................ 19	
  10.5	
   TextObservation ............................................................................................... 20	
  10.6	
   om:ComplexObservation with swe:DataArray ................................................ 21	
  
11	
  

Examples: Sensor Model Language...................................................................... 23	
  

12	
  
Examples: Sensor Observation Service ................................................................ 26	
  12.1	
   GetCapabilities ................................................................................................. 26	
  12.1.1	
   Request ......................................................................................................... 26	
  12.1.2	
   Response ...................................................................................................... 27	
  12.2	
   DescribeSensor ................................................................................................. 31	  Copyright © 2014 Open Geospatial Consortiumiii

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12.2.1	
   Request ......................................................................................................... 31	
  12.2.2	
   Response ...................................................................................................... 31	
  12.3	
   GetObservation ................................................................................................. 32	
  12.3.1	
   Request ......................................................................................................... 32	
  12.3.2	
   Response ...................................................................................................... 33	
  12.4	
   GetFeatureOfInterest ........................................................................................ 34	
  12.4.1	
   Request ......................................................................................................... 34	
  12.4.2	
   Response ...................................................................................................... 35	
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FiguresPage

Figure 1: Overview of the key information elements and their relationships (informal
representation)6	  Copyright © 2014 Open Geospatial Consortiumv

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TablesPage

Table 1 — Overview of Observation Types ................................................................................. 8	  vi

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Preface
Suggested additions, changes, and comments on this draft report are welcome andencouraged. Such suggestions may be submitted by email message or by making
suggested changes in an edited copy of this document.
If you choose to submit suggested changes by editing this document, please first accept
all the current changes, and then make your suggested changes with change tracking on.

ii.

Document terms and definitions
This document uses the standard terms defined in Subclause 5.3 of [OGC 06-121r3],
which is based on the ISO/IEC Directives, Part 2. Rules for the structure and drafting ofInternational Standards. In particular, the word “shall” (not “must”) is the verb form used
to indicate a requirement to be strictly followed to conform to this standard.

iii.

Submitting organizations
The following organizations submitted this document to the Open Geospatial ConsortiumInc.
a. 52° North Initiative for Geospatial Open Source Software GmbHb. Institute for Geoinformatics (IfGI), University of Münster (WWU)

iv.

Document contributor contact points
All questions regarding this document should be directed to the editor or the contributors:
Name

Organization

Arne Bröring
Simon Jirka
Christoph Stasch

52°North GmbH
52° North GmbH
IfGI, University of Münster

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v.

Revision history
Date
2011-11-09
2013-02-27

vi.

Release
0.1.0
0.2.0

EditorPrimary clauses
modified
Simon Jirka All
Simon Jirka Section 6

Description
First version of the Discussion Paper
Addition of SWE Common
observation types

Changes to the OGC Abstract Specification
The OGC® Abstract Specification does not require changes to accommodate the technicalcontents of this document.

vii.

Future work
This profile is intended to provide a starting point for a discussion on a minimum set ofelements that are necessary when applying the SOS in practice. Thus, it will be necessary
to incorporate the results of the discussion paper into later versions of this document.
This version of the Discussion Paper includes also complex observations containing
swe:DataArrays. In order to ensure a harmonised and consistent use, it will be necessary
to include more restrictions and guidance on this observation type in the next version ofthis Discussion Paper.
In addition, this Discussion Paper may serve as the basis for defining domain specific
SOS profiles.

viii.

Acknowledgements
This work was supported by the European Environment Agency (EEA;
http://www.eea.europa.eu/), as well as the projects “Earth Observation andEnvironmental Modelling for the Mitigation of Health Risks - EO2Heaven”(http://www.eo2heaven.org; contract number 244100) and “Uncertainty Enabled Model
Web - UncertWeb“(http://www.uncertweb.org; contract number 248488) which are cofunded by the European Commission.

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Foreword
This document presents a lightweight profile for the SOS 2.0 standard. This profile is
specifically designed for the provision of observations gathered by stationary in-situ
sensors.
Attention is drawn to the possibility that some of the elements of this document may be
the subject of patent rights. The Open Geospatial Consortium shall not be held
responsible for identifying any or all such patent rights.
Recipients of this document are requested to submit, with their comments, notification of
any relevant patent claims or other intellectual property rights of which they may beaware that might be infringed by any implementation of the standard set forth in thisdocument, and to provide supporting documentation.

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Introduction
The OGC Sensor Web Enablement architecture (SWE) addresses the integration of
sensors and sensor data into Spatial Data Infrastructures (SDI). Within the SWE
architecture the Sensor Observation Service (SOS) plays a central role as it defines aninterface for accessing sensor data and metadata. This document describes a lightweightprofile of the SOS and the data formats used by the SOS: Observations & Measurements(O&M) for encoding measurement data and the Sensor Model Language (SensorML) for
encoding metadata. Other SWE standards which provide more specialized functionality
are not part of this minimum lightweight SWE profile.
This profile has been designed in a way that is on the one hand efficient and easy to
implement and on the other hand standard compliant. Especially the following aspects
were considered during the creation of the profile:
Reducing the number of operations: certain operations of the SOS standard were
designed for very specific needs; these operations were left out of this profile
Reducing the complexity of the SOS operations (e.g. less complex filters forrequesting sensor data)
Focus on fixed in-situ sensors as these sensors are the type of sensors that areused in the broad majority of SWE use cases in practice (for widening this focus
in future, extensions may be developed)
In summary the main objective that guided the development of this profile was to support
those use cases which are regularly occurring in practice and to leave out those with very
specific requirements that go beyond the broad mass of SWE use cases.

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OGC® Best Practice11-169r1

Lightweight SOS Profile for Stationary In-Situ Sensors Best
Practice1

Scope

This Best Practice document describes a lightweight SOS 2.0 profile for stationary in-situ
sensors. Besides the SOS itself this document also addresses the data formats used by the
SOS: Observations & Measurements 2.0 (O&M) for encoding measurement data and theSensor Model Language 2.0 (SensorML) for encoding metadata. Other SWE standards
which provide more specialized functionality are not part of this minimum lightweightSWE profile.
The aim of this document is to present a common minimum profile of the SOS. The
profile is intended to reduce the complexity of the standard by omitting highly specificelements that are not necessary for the majority of use cases that occur in practice. At thesame time, the profile is designed in such a way that all SOS implementations that
conform to this profile are also compliant to the according OGC specifications.

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2

Normative references

The following normative documents contain provisions that, through reference in thistext, constitute provisions of this document. For dated references, subsequent
amendments to, or revisions of, any of these publications do not apply. For undated
references, the latest edition of the normative document referred to applies.
OGC 06-121r3, OpenGIS® Web Services Common Specification
OGC 07-036, OpenGIS® Geography Markup Language (GML) Encoding Standard
OGC 08-094r1, OGC® SWE Common Data Model Encoding Standard 2.0.0
OGC 09-001, OpenGIS® SWE Service Model Implementation Standard 2.0
OGC 10-025r1, Observations and Measurements - XML Implementation 2.0
OGC 12-000, OGC® SensorML: Model and XML Encoding Candidate Standard 2.0
OGC 12-006, OGC® Sensor Observation Service 2.0 Interface Standard
The OWS Common Specification contains a list of normative references that are also
applicable to this Implementation Specification.

NOTE

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3

Terms and definitions

For the purposes of this specification, the definitions specified in Clause 4 of the OWS
Common Implementation Specification [OGC 06-121r3] shall apply. In addition, theterms and definitions as described in the following documents apply:
OGC 07-036, OpenGIS® Geography Markup Language (GML) EncodingStandard
OGC 08-094r1, OGC® SWE Common Data Model Encoding Standard 2.0.0
OGC 09-001, OpenGIS® SWE Service Model Implementation Standard 2.0
OGC 10-025r1, Observations and Measurements - XML Implementation 2.0
OGC 12-000, OGC® SensorML: Model and XML Encoding Candidate Standard
2.0
OGC 12-006, OGC® Sensor Observation Service 2.0 Interface Standard

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4

Conventions

4.1

Abbreviated terms

Most of the abbreviated terms listed in Subclause 5.1 of the OWS Common
Implementation Specification [OGC 06-121r3] apply to this document, plus the following
abbreviated terms.
Some more frequently used abbreviated terms:
O&M

Observations and Measurements

SensorML

Sensor Model Language

SOS

Sensor Observation Service

SWE

Sensor Web Enablement

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5

Overview

The next sections describe a lightweight profile for the SOS and its accompanying data
encodings SensorML and O&M. At the end of this document an annex is provided that
contains examples of the operations and encodings that are part of this profile.
This profile is optimized for scenarios where an SOS is utilized to provide interoperable
access to data measured within a network of stationary in-situ sensor stations, each ofwhich may have a number of sensors attached. Examples for such sensors are weather
stations or air quality stations. Central in such scenarios are the concepts of sensor, sensor
station (= sensor system). The sensor (e.g. a thermometer or anemometer) is attached tothe stationary sensor system (e.g. a weather station).
To give an overview, the figure below (Figure 1) displays in an informal way the key
elements of the three utilized standards that are used to represent the measured data as
well as relevant metadata (SOS, O&M, and SensorML). The figure points out how thoseelements are interrelated. The elements from the SOS specification are coloured in blue,
the O&M elements are displayed in violet and SensorML elements are shown in grey.
As shown in the figure, the SOS and O&M specifications abstract from the term sensor
and instead consider the procedure concept. In case of this profile, the procedure isalways a stationary sensor system, which is modelled in SensorML using thePhysicalSystem type. Sensors attached to the sensor system may be modelled as
PhysicalComponents and associated with the PhysicalSystem, however, this profile does
not demand the linkage to those subcomponents.
Please note: The operations and their parameters described in this profile constitute a
minimum set that shall be supported by every server implementing this profile. Thus,
clients shall be able to rely on the implementation of these operations and parameters.

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Figure 1: Overview of the key information elements and their relationships (informal representation)

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6
6.1

Observations and Measurements
Introduction

The Observations & Measurements standard offers an encoding for data observed by
sensors. It is the standard format the SOS is providing its data. However, as O&M has
been designed to be extremely versatile and comprehensive it has also a certain
complexity. Thus, this lightweight profile has been defined containing only thoseelements of O&M which are essential for most common use cases. Within this document
we include the following observation types which differ by the result models used:
om:Measurement
om:CountObservation
om:TruthObservation
om:CategoryObservation
om:TextObservation
om:ComplexObservation with swe:DataArray
6.2

Common Observation Properties

In order to reduce the complexity of O&M Observations, only a limited set of O&M
elements shall be used. These are1:
gml:identifier (mandatory): this element can be used for uniquely identifying or
referring to a specific observation.
om:phenomenonTime (mandatory): this element describes the time instant or time
period for which the observation contains sensor data; within the lightweightprofile this is restricted to the data types TimeInstant and TimePeriod (other kindsof time (result and valid time) are currently not considered for this profile).
om:resultTime (mandatory): this element provides the time when the result
became available; often this is identical to the phenomenonTime.
om:procedure (mandatory): the identifier of the sensor instance that has generated
the observation.

1 The prefix gml indicates that this element is defined in OGC 07-033; the prefix om indicates that the element isdefined in OGC 10-025r1.

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om:observedProperty (mandatory): the identifier of the phenomenon that wasobserved.
om:featureOfInterest (mandatory): an identifier of the geometric feature (e.g.
sensor station) to which the observation is associated; within the lightweightprofile this is limited to sampling points.
om:result (mandatory): the observed value; the type of the result is restricted tothe types shown in Table 1.
6.3

Observation Types

The different subtypes and its result types are shown in Table 1.
Table 1 — Overview of Observation Types
Observation Type

Result Type

Description

ExampleMeasurement

gml:MeasureTypescalar numericalvalue with unit ofmeasurement<om:result uom="Cel">36</om:result>CountObservation

xs:integer

count of anobserved property<om:result>12</om:result>

TruthObservation

xs:boolean

truth value (often
existence) of anobserved property<om:result>true</om:result>

CategoryObservation

gml:ReferenceTypevalue from acontrolled
vocabulary<om:result
xlink:title="storm"
xlink:href="http://en.wikipedia.org/wiki/Storm"xsi:type="gml:ReferenceTy
pe"/>

TextObservation

xs:string

any kind of textual
description of anobserved property<om:result>some text</om:result>

swe:DataArraycompact
representation ofmultiple
observation values(e.g. time series);
this observation
types needs to befurther restricted

om:ComplexObserva
tion with
swe:DataArray

8-

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and enhanced by
guidance in futurerevisions of the
profile.

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7
7.1

Sensor Model Language
Introduction

The Sensor Model Language (SensorML) is used within the SOS for encoding sensor
metadata documents that are returned in case of DescribeSensor requests. This
lightweight profile defines a minimum set of mandatory metadata that need to beprovided in a SensorML document. Complex elements of SensorML that are intended forvery specific applications are not considered within this lightweight profile but may be
added if necessary.
7.2

Profile-specific Schema of a Sensor System

Every sensor system shall be modeled as a PhysicalSystem. The following metadata items
are mandatory for a PhysicalSystem which conforms to this profile:
gml:description (mandatory):
Short textual description of the sensor or sensor system.
gml:identifier (mandatory):
Unique identifier of the sensor system.
sml:keywords (mandatory):
Terms which help to describe the sensor system and serve for discovery purposes.
For example, the phenomena observed by the system or the types of contained
sensors can be mentioned.
sml:identification (mandatory):
This element contains identifiers of the sensor system.
Each "identifier/Term" element contained in the "IdentifierList" must have a"definition" attribute which links to the semantics of the sensor system.
One identifier has to be present which contains the definition"urn:ogc:def:identifier:OGC:shortname". The value of its contained "Term"element represents a human understandable name for the instance.
One identifier has to be present which contains the definition"urn:ogc:def:identifier:OGC:longname". The value of its contained "Term"element represents a human understandable name for the sensor system.
sml:classification (mandatory):
This element contains classifiers for the sensor system.

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Each "classifier/Term" element contained in the "ClassifierList" must have a"definition" attribute. This attribute links to the semantics of the identifier.
One classifier has to be present which contains the definition“http://www.opengis.net/def/property/OGC/0/SensorType”. The value of its
contained “Term” element states the type of the sensor system (e.g., “weather
station”).
sml:contacts (mandatory):
This element contains contact information about the operator of the sensor.
The element "contacts/ContactList/member/gmd:CI_ResponsibleParty" has to bepresent to define the responsible party of the sensor system.
sml:featuresOfInterest (mandatory):
This element contains the real world entity, the feature of interest, which isobserved by the sensor system. In case of this profile, the feature of interest is astation and modelled as a SamplingPoint.
sml:outputs (mandatory):
The outputs of the sensors attached to the sensor system.
Each child-element of an "output" has to use the "definition"-attribute to specify
the URI of the observed property. If the child-element of the output is a
"swe:Quantity" it has to contain the "swe:uom" element which specifies the"code" attribute stating the UCUM code.
Depending on the observation types the outputs have to be described as one of thefollowing elementso swe:Quantity (in case of Measurement)o swe:Count (in case of CountObservation)o swe:Boolean (in case of TruthObservation)o swe:Category (in case of CategoryObservation)o swe:Text (in case of TextObservation)

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8

Sensor Observation Service

8.1

Introduction

This lightweight SOS profile comprises those operations which are mandatory within the
SOS standard (GetCapabilities, DescribeSensor and GetObservation) so that they must
be implemented by every standard compliant SOS server. Furthermore the
GetFeatureOfInterest operation has been included as a mandatory operation within thisprofile since it allows accessing the geometries of sensor stations.
8.2

SOS Operations

8.2.1

GetCapabilities

The GetCapabilities operation is common for every OGC web service specification. It is
important to support this operation as it provides the metadata necessary for clients togenerate valid SOS requests.
The response shall contain the following information:
the supported operations of the SOS instance shall be listed in theows:OperationsMetadata section, if this section has been requested in the request.
the identifiers of all sensor instances encapsulated by the SOS instance shall be
provided in the procedure element of each ObservationOffering for this sensor.
the identifiers of all observed phenomena shall be provided in theobservedProperty elements of the Contents or ObservationOfferings
8.2.2

DescribeSensor

The DescribeSensor operation allows retrieving metadata about the sensors encapsulated
by a SOS instance. The operation is defined as mandatory in the SOS specification. Thus,
it is included in the minimum profile so that servers must offer this operation.
The request of the DescribeSensor operation is very simple as the only parameterrequired by this profile consists of the identifier of the sensor for which a metadata
document is requested. The response is a SensorML document (the lightweight structure
for the SensorML response is defined section 7).
8.2.3

GetObservation

The GetObservation operation is an essential part of the SOS specification as it is theoperation for requesting sensor data. Thus, it is obvious that this operation is needed forboth servers and clients. However, in order to reduce the complexity of the
GetObservation operation several restrictions have been defined that limit the query
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parameters. In detail, the following parameters are included in this lightweight SOS
profile and can be used in a GetObservation service request and therefore shall besupported by every SOS server implementation compliant to this profile (please note: theuse of these parameters by clients is optional):
offering: the identifier of the offering that contains the requested sensor data
temporalFilter: for specifying the time for which sensor data is requested; thetemporal filter is limited within the lightweight SOS profile to the following
types:o During a time periodo Equal to a time instantprocedure: the identifiers of the sensor or sensor network instances from whichdata is requested
observedProperty: the identifiers of the phenomena for which data is requested
featureOfInterest: Identifier of the geometric objects for which sensor data isrequestedspatialFilter: is restricted within the lightweight SOS profile to the Bounding boxof an area for which data is requested
8.2.4

GetFeatureOfInterest

The GetFeatureOfInterest operation allows retrieving the spatial features that are
attached to observations. In case of fixed in-situ stations, these features are usually equal
to the location of the stations at which measurements were performed. As the access to
the geometries of measurements is a requirement for creating map visualizations of thesensors and their data, the GetFeatureOfInterest operation has been included for servers
in this lightweight SOS profile. However, not every client might rely on this operation(e.g. clients that only show diagrams of time series data).
In order to reduce the complexity of this operation, its request parameters are restrictedwithin this profile. Clients may request geometries using only one of these threeparameters:featureOfInterest: identifier of a feature of interest which shall be returned
spatialFilter: restricted within the lightweight SOS profile to the Bounding box ofan area for which features are requested
observedProperty: identifiers of the properties that shall be observed at therequested features
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procedure: identifiers of the procedures that shall observe the requested features
In case of this profile, the response of the GetFeatureOfInterest operation shall always
contain one or more SamplingPoints

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Bibliography[1]

Jirka, Simon and Christoph Stasch (2011). A Lightweight Sensor Web
Enablement Profile for Stationary In-Situ Sensors. INSPIRE Conference 2011,
Edinburgh, United Kingdom.

[2]

Bröring, Arne, Johannes Echterhoff, Simon Jirka, Ingo Simonis, Thomas
Everding, Christoph Stasch, Steve Liang and Rob Lemmens (2011). "New
Generation Sensor Web Enablement." MDPI Sensors 11(3): 2652-2699.

[3]

Houbie, Frédéric, Fabian Skivée and Simon Jirka (2010). OGC Discussion Paper:
OGC Catalogue Services Specification 2.0 Extension Package for ebRIM
Application Profile: SensorML 0.3.0 (09-163r2). Wayland, MA, USA, Open
Geospatial Consortium Inc.

[4]

Jirka, Simon, Arne Bröring and Christoph Stasch (2009). "Discovery Mechanisms
for the Sensor Web." MDPI Sensors 9(4): 2661-2681.

[5]

Jirka, Simon and Arne Bröring (2009). OGC Public Engineering Report: OGC
OWS-6 SensorML Profile for Discovery 0.3.0 (09-033). Wayland, MA, USA,
Open Geospatial Consortium Inc.

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10 Examples: Observations & Measurements
10.1

Measurement<?xml version="1.0" encoding="UTF-8"?><!--=============================================================
This observation depicts an example-point as sampling location-time instant as phenomenon time
-result is a measure value (double with units of measure information)==============================================================--><om:OM_Measurement gml:id="obsTest1" xmlns:om="http://www.opengis.net/om/2.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:sams="http://www.opengis.net/samplingSpatial/2.0"
xmlns:sf="http://www.opengis.net/sampling/2.0"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:gml="http://www.opengis.net/gml/3.2"
xsi:schemaLocation="http://www.opengis.net/om/2.0 ../observation.xsd"><!--=============================================================
global identifier of the observation==============================================================--><gml:identifier codeSpace="http://www.myWebSite.org">obsTest1</gml:identifier><!--=============================================================
phenomenon time represents the time when the observation was taken (so when thesensor has interacted with reality==============================================================--><om:phenomenonTime><gml:TimeInstant gml:id="ot1t"><gml:timePosition>2005-01-11T16:22:25.00</gml:timePosition></gml:TimeInstant></om:phenomenonTime><!--=============================================================
result time represents the time when the result value was produced; might differ for
example in case of a soil sample; sample has been taken during phenomenonTime andthen evaluate later in a laboratory during resultTime==============================================================--><om:resultTime xlink:href="#ot1t"/><!--=============================================================
procedure has produced the observation's result (usually a sensor)==============================================================--><om:procedure xlink:href="http://www.example.org/register/process/scales34.xml"/><!--=============================================================
observedProperty usually contains a link to a vocabulary containing the definition of
the property which has been observed; in case of environmental modelling this is
usually a physical phenomenon (e.g. temperature, air pollutant concentration, etc.)==============================================================--><om:observedProperty xlink:href="urn:ogc:def:phenomenon:OGC:temperature"/><!--=============================================================
feature of interest carries the sampling geometry of the observation==============================================================--><om:featureOfInterest><sams:SF_SpatialSamplingFeature gml:id="SamplingPoint1"><sf:type xlink:href="http://www.opengis.net/def/samplingFeatureType/OGCOM/2.0/SF_SamplingPoint"/><sf:sampledFeature xsi:nil="true"/><sams:shape><gml:Point gml:id="UOMlocation"><gml:pos srsName="http://www.opengis.net/def/crs/EPSG/0/4326">
52.87 7.78</gml:pos></gml:Point></sams:shape></sams:SF_SpatialSamplingFeature></om:featureOfInterest><!--=============================================================
observation result is an numerical value with information about the unit ofmeasurements==============================================================-->

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11-169r1<om:result uom="Cel">36</om:result></om:OM_Measurement>

10.2

CountObservation<?xml version="1.0" encoding="UTF-8"?><!--=============================================================
This observation depicts an example with-point as sampling location-timeInstant as phenomenon time
-result is a count value==============================================================--><om:OM_CountObservation gml:id="obsTest1" xmlns:om="http://www.opengis.net/om/2.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:sams="http://www.opengis.net/samplingSpatial/2.0"
xmlns:sf="http://www.opengis.net/sampling/2.0"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:gml="http://www.opengis.net/gml/3.2"
xsi:schemaLocation="http://www.opengis.net/om/2.0 ../observation.xsd"><!--=============================================================
global identifier of the observation==============================================================--><gml:identifier codeSpace="http://www.uncertweb.org">obsTest1</gml:identifier><!--=============================================================
phenomenon time represents the time when the observation was taken (so when thesensor has interacted with reality==============================================================--><om:phenomenonTime><gml:TimeInstant gml:id="ot1t"><gml:timePosition>2005-01-11T16:22:25.00</gml:timePosition></gml:TimeInstant></om:phenomenonTime><!--=============================================================
result time represents the time when the result value was produced; might differ for
example in case of a soil sample; sample has been taken during phenomenonTime andthen evaluate later in a laboratory during resultTime==============================================================--><om:resultTime xlink:href="#ot1t"/><!--=============================================================
procedure has produced the observation's result (usually a sensor)==============================================================--><om:procedure xlink:href="http://www.example.org/register/process/counter.xml"/><!--=============================================================
observedProperty usually contains a link to a vocabulary containing the definition of
the property which has been observed; in case of environmental modelling this is
usually a physical phenomenon (e.g. temperature, air pollutant concentration, etc.)==============================================================--><om:observedProperty xlink:href="urn:ogc:def:phenomenon:OGC:numberOfPersons"/><!--=============================================================
feature of interest carries the sampling geometry of the observation==============================================================--><om:featureOfInterest><sams:SF_SpatialSamplingFeature gml:id="SamplingPoint1"><sf:type xlink:href="http://www.opengis.net/def/samplingFeatureType/OGCOM/2.0/SF_SamplingPoint"/><sf:sampledFeature xsi:nil="true"/><sams:shape><gml:Point gml:id="UOMlocation"><gml:pos srsName="http://www.opengis.net/def/crs/EPSG/0/4326">
52.87 7.78</gml:pos></gml:Point></sams:shape></sams:SF_SpatialSamplingFeature></om:featureOfInterest><!--=============================================================
observation result is a count value==============================================================--><om:result>36000</om:result></om:OM_CountObservation>

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10.3

TruthObservation<?xml version="1.0" encoding="UTF-8"?><!--=============================================================
This observation depicts an example with-point as sampling location-timeInstant as phenomenonTime-result is a reference to a coverage on a server==============================================================--><om:OM_TruthObservation gml:id="obsTest1" xmlns:om="http://www.opengis.net/om/2.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:sams="http://www.opengis.net/samplingSpatial/2.0"
xmlns:sf="http://www.opengis.net/sampling/2.0"
xmlns:gmd="http://www.isotc211.org/2005/gmd"
xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:gml="http://www.opengis.net/gml/3.2"
xsi:schemaLocation="http://www.opengis.net/om/2.0 ../observation.xsd"><!--=============================================================
global identifier of the observation==============================================================--><gml:identifier codeSpace="http://www.uncertweb.org">obsTest1</gml:identifier><!--=============================================================
phenomenon time represents the time when the observation was taken (so when thesensor has interacted with reality==============================================================--><om:phenomenonTime><gml:TimeInstant gml:id="ot1t"><gml:timePosition>2005-01-11T16:22:25.00</gml:timePosition></gml:TimeInstant></om:phenomenonTime><!--=============================================================
result time represents the time when the result value was produced; might differ for
example in case of a soil sample; sample has been taken during phenomenonTime andthen evaluate later in a laboratory during resultTime==============================================================--><om:resultTime xlink:href="#ot1t"/><!--=============================================================
procedure has produced the observation's result (usually a sensor)==============================================================--><om:procedure xlink:href="http://www.example.org/register/process/scales34.xml"/><!--=============================================================
observedProperty usually contains a link to a vocabulary containing the definition of
the property which has been observed; in case of environmental modelling this is
usually a physical phenomenon (e.g. temperature, air pollutant concentration, etc.)==============================================================--><om:observedProperty xlink:href="urn:ogc:def:phenomenon:OGC:temperature"/><!--=============================================================
feature of interest carries the sampling geometry of the observation==============================================================--><om:featureOfInterest><sams:SF_SpatialSamplingFeature gml:id="SamplingPoint1"><sf:type xlink:href="http://www.opengis.net/def/samplingFeatureType/OGCOM/2.0/SF_SamplingPoint"/><sf:sampledFeature xsi:nil="true"/><sams:shape><gml:Point gml:id="UOMlocation"><gml:pos srsName="http://www.opengis.net/def/crs/EPSG/0/4326">
52.87 7.78</gml:pos></gml:Point></sams:shape></sams:SF_SpatialSamplingFeature></om:featureOfInterest><!--=============================================================
observation result is a boolean (truth) value==============================================================--><om:result>true</om:result></om:OM_TruthObservation>

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10.4

CategoryObservation<?xml version="1.0" encoding="UTF-8"?><!--=============================================================
This observation depicts an example with-point as sampling location-time period as phenomenon time
-result is a categorical value (category with link to code space)==============================================================--><om:OM_CategoryObservation gml:id="obsTest1" xmlns:om="http://www.opengis.net/om/2.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:sams="http://www.opengis.net/samplingSpatial/2.0"
xmlns:sf="http://www.opengis.net/sampling/2.0"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:gml="http://www.opengis.net/gml/3.2"
xsi:schemaLocation="http://www.opengis.net/om/2.0 ../observation.xsd"><!--=============================================================
global identifier of the observation==============================================================--><gml:identifier codeSpace="http://www.myWebSite.org">obsTest1</gml:identifier><!--=============================================================
phenomenon time represents the time when the observation was taken (so when thesensor has interacted with reality==============================================================--><om:phenomenonTime><gml:TimeInstant gml:id="ot1t"><gml:timePosition>2005-01-11T16:22:25.00</gml:timePosition></gml:TimeInstant></om:phenomenonTime><!--=============================================================
result time represents the time when the result value was produced; might differ for
example in case of a soil sample; sample has been taken during phenomenonTime andthen evaluate later in a laboratory during resultTime==============================================================--><om:resultTime xlink:href="#ot1t"/><!--=============================================================
procedure has produced the observation's result (usually a sensor)==============================================================--><om:procedure xlink:href="http://www.example.org/register/process/scales34.xml"/><!--=============================================================
observedProperty usually contains a link to a vocabulary containing the definition of
the property which has been observed; in case of environmental modelling this is
usually a physical phenomenon (e.g. temperature, air pollutant concentration, etc.)==============================================================--><om:observedProperty xlink:href="urn:ogc:def:phenomenon:OGC:temperature"/><!--=============================================================
feature of interest carries the sampling geometry of the observation==============================================================--><om:featureOfInterest><sams:SF_SpatialSamplingFeature gml:id="SamplingPoint1"><sf:type xlink:href="http://www.opengis.net/def/samplingFeatureType/OGCOM/2.0/SF_SamplingPoint"/><sf:sampledFeature xsi:nil="true"/><sams:shape><gml:Point gml:id="UOMlocation"><gml:pos srsName="http://www.opengis.net/def/crs/EPSG/0/4326">
52.87 7.78</gml:pos></gml:Point></sams:shape></sams:SF_SpatialSamplingFeature></om:featureOfInterest><!--=============================================================
observation result is an uncertainty value==============================================================--><om:result codeSpace="http://www.uncertweb.org/tempCodeSpace/tempCategories.xml">
warm</om:result></om:OM_CategoryObservation>

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10.5

TextObservation<?xml version="1.0" encoding="UTF-8"?><!--=============================================================
This observation depicts an example with-point as sampling location-time instant as phenomenon time
-result is a free text value==============================================================--><om:OM_TextObservation gml:id="obsTest1" xmlns:om="http://www.opengis.net/om/2.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:sams="http://www.opengis.net/samplingSpatial/2.0"
xmlns:sf="http://www.opengis.net/sampling/2.0"
xmlns:gmd="http://www.isotc211.org/2005/gmd"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:gml="http://www.opengis.net/gml/3.2"
xsi:schemaLocation="http://www.opengis.net/om/2.0 ../observation.xsd"><!--=============================================================
global identifier of the observation==============================================================--><gml:identifier codeSpace="http://www.myWebSite.org">obsTest1</gml:identifier><!--=============================================================
phenomenon time represents the time when the observation was taken (so when thesensor has interacted with reality==============================================================--><om:phenomenonTime><gml:TimeInstant gml:id="ot1t"><gml:timePosition>2005-01-11T16:22:25.00</gml:timePosition></gml:TimeInstant></om:phenomenonTime><!--=============================================================
result time represents the time when the result value was produced; might differ for
example in case of a soil sample; sample has been taken during phenomenonTime andthen evaluate later in a laboratory during resultTime==============================================================--><om:resultTime xlink:href="#ot_tp_1"/><!--=============================================================
procedure has produced the observation's result (usually a sensor)==============================================================--><om:procedure xlink:href="http://www.example.org/register/process/scales34.xml"/><!--=============================================================
observedProperty usually contains a link to a vocabulary containing the definition of
the property which has been observed; in case of environmental modelling this is
usually a physical phenomenon (e.g. temperature, air pollutant concentration, etc.)==============================================================--><om:observedProperty xlink:href="urn:ogc:def:phenomenon:OGC:species:flyingHorse"/><!--=============================================================
feature of interest carries the sampling geometry of the observation==============================================================--><om:featureOfInterest><sams:SF_SpatialSamplingFeature gml:id="SamplingPoint1"><sf:type xlink:href="http://www.opengis.net/def/samplingFeatureType/OGCOM/2.0/SF_SamplingPoint "/><sf:sampledFeature xsi:nil="true"/><sams:shape><gml:Point gml:id="UOMlocation"><gml:pos srsName="http://www.opengis.net/def/crs/EPSG/0/4326">
52.87 7.78</gml:pos></gml:Point></sams:shape></sams:SF_SpatialSamplingFeature></om:featureOfInterest><!--=============================================================
observation result is free text==============================================================--><om:result>I've observed a flying horse.</om:result></om:OM_TextObservation>

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10.6

om:ComplexObservation with swe:DataArray<?xml version="1.0" encoding="UTF-8"?><!--=============================================================
This observation depicts an example with-point as sampling location-time period as phenomenon time
-result is a swe:DataArrray==============================================================--><om:OM_Observation gml:id="obsTest1" xmlns:om="http://www.opengis.net/om/2.0"
xmlns:swe="http://www.opengis.net/swe/2.0"
xmlns:sams="http://www.opengis.net/samplingSpatial/2.0"
xmlns:sf="http://www.opengis.net/sampling/2.0"
xmlns:gmd="http://www.isotc211.org/2005/gmd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:gml="http://www.opengis.net/gml/3.2"
xsi:schemaLocation="http://www.opengis.net/om/2.0
http://schemas.opengis.net/om/2.0/observation.xsd
http://www.opengis.net/swe/2.0
http://schemas.opengis.net/sweCommon/2.0/swe.xsd"><!--=============================================================
global identifier of the observation==============================================================--><gml:identifier codeSpace="http://www.myWebSite.org">obsTest1</gml:identifier><!--=============================================================
phenomenon time represents the time when the observation was
taken (so when the sensor has interacted with reality==============================================================--><om:phenomenonTime><gml:TimeInstant gml:id="ot1t"><gml:timePosition>2005-01-11T16:22:25.00</gml:timePosition></gml:TimeInstant></om:phenomenonTime><!--=============================================================
result time represents the time when the result value was produced; might differ for
example in case of a soil sample; sample has been taken during phenomenonTime andthen evaluate later in a laboratory during resultTime==============================================================--><om:resultTime xlink:href="#ot_tp_1"/><!--=============================================================
procedure has produced the observation's result (usually a sensor)==============================================================--><om:procedure xlink:href="http://www.example.org/register/process/scales34.xml"/><!--=============================================================
observedProperty usually contains a link to a vocabulary containing the definition of
the property which has been observed; in case of environmental modelling this is
usually a physical phenomenon (e.g. temperature, air pollutant concentration, etc.)==============================================================--><om:observedProperty xlink:href="urn:ogc:def:phenomenon:OGC:air:temperature"/><!--=============================================================
feature of interest carries the sampling geometry of the observation==============================================================--><om:featureOfInterest><sams:SF_SpatialSamplingFeature gml:id="SamplingPoint1"><sf:type xlink:href="http://www.opengis.net/def/samplingFeatureType/OGC-OM/2.0/SF_SamplingPoint "/><sf:sampledFeature xsi:nil="true"/><sams:shape><gml:Point gml:id="UOMlocation"><gml:pos srsName="http://www.opengis.net/def/crs/EPSG/0/4326">
52.87 7.78</gml:pos></gml:Point></sams:shape></sams:SF_SpatialSamplingFeature></om:featureOfInterest><!--=============================================================
observation result is a swe:DataArray containing air temperature measurements fordifferent heights

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11-169r1==============================================================--><om:result xsi:type="swe:DataArrayPropertyType"><swe:DataArray><swe:elementCount><swe:Count><swe:value>5</swe:value></swe:Count></swe:elementCount><swe:elementType name="point"><swe:DataRecord><swe:field name="height"><swe:Quantity definition="http://mmisw.org/ont/cf/parameter/height"><swe:label>Sampling Point Vertical Location</swe:label><swe:uom code="m"/></swe:Quantity></swe:field><swe:field name="airtemperature"><swe:Quantity definition="urn:ogc:def:phenomenon:OGC:air:temperature"><swe:label>Air Temperature</swe:label><swe:uom code="Cel"/></swe:Quantity></swe:field></swe:DataRecord></swe:elementType><swe:encoding><swe:TextEncoding blockSeparator=";" tokenSeparator=","/></swe:encoding><swe:values>
0,20.9;100,19.7;200,18.2;300,17.5;400,16.5</swe:values></swe:DataArray></om:result></om:OM_Observation>

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11 Examples: Sensor Model Language<?xml version="1.0" encoding="UTF-8"?><PhysicalSystem gml:id="sensor_id" xmlns="http://www.opengis.net/sensorML/2.0"
xmlns:swe="http://www.opengis.net/swe/2.0"
xmlns:gml="http://www.opengis.net/gml/3.2"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:gmd="http://www.isotc211.org/2005/gmd"
xmlns:gco="http://www.isotc211.org/2005/gco"
xmlns:sams="http://www.opengis.net/samplingSpatial/2.0"
xmlns:sf="http://www.opengis.net/sampling/2.0"
xsi:schemaLocation=" http://www.opengis.net/sensorML/2.0
http://schemas.opengis.net/sensorML/2.0/sensorML.xsd
http://www.opengis.net/samplingSpatial/2.0
http://schemas.opengis.net/samplingSpatial/2.0/spatialSamplingFeature.xsd"><!--=============================================================
gml:description is used for a short textual description of the sensor or sensor systemand the gml:identifier provides a unique identifier of the sensor or sensor system==============================================================--><gml:description>A weather station on top of the 52North building</gml:description><gml:identifier codeSpace="not_used">
urn:ogc:object:feature:Sensor:52North:weatherStation123</gml:identifier><!--=============================================================For discovery purposes, human-readable keywords shall be given. For example, thephenomena observed by the system or the types of contained sensors can be mentioned.
==============================================================--><keywords><KeywordList><keyword>weather station</keyword><keyword>precipitation</keyword><keyword>wind speed</keyword><keyword>temperature</keyword></KeywordList></keywords><!--=============================================================
Each "identifier/Term" element contained in the "IdentifierList" must have a"definition" attribute. This attribute links to the semantics of the identifier.
One identifier has to contain the definition "urn:ogc:def:identifier:OGC:shortname".
The value of its contained "Term" element represents a human understandable name forthe instance.
One identifier has to contain the definition "urn:ogc:def:identifier:OGC:longname".
The value of its contained "Term" element represents a human understandable name forthe instance.
==============================================================--><identification><IdentifierList><identifier><Term definition="urn:ogc:def:identifier:OGC:shortname"><label>short name</label><value>Weather station 123</value></Term></identifier><identifier><Term definition="urn:ogc:def:identifier:OGC:longname"><label>long name</label><value>Weather station 123 on top of the 52North building</value></Term></identifier></IdentifierList></identification><!--=============================================================
Each "classifier/Term" element contained in the "ClassifierList" must have a"definition" attribute. This attribute links to the semantics of the identifier.
==============================================================-->

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11-169r1<classification><ClassifierList><classifier><Term definition="http://www.opengis.net/def/property/OGC/0/SensorType"><label>sensorType</label><value>weather station</value></Term></classifier></ClassifierList></classification><!--=============================================================The element "contacts/ContactList/member/gmd:CI_ResponsibleParty" has to be present todefine the responsible party of the sensor system.
==============================================================--><contacts><ContactList><member><gmd:CI_ResponsibleParty><gmd:individualName><gco:CharacterString>Arne Bröring</gco:CharacterString></gmd:individualName><gmd:organisationName><gco:CharacterString>52North</gco:CharacterString></gmd:organisationName><gmd:positionName><gco:CharacterString>Software Engineer</gco:CharacterString></gmd:positionName><gmd:contactInfo><gmd:CI_Contact><gmd:address><gmd:CI_Address><gmd:deliveryPoint><gco:CharacterString>Martin-Luther-King-Weg
24</gco:CharacterString></gmd:deliveryPoint><gmd:city><gco:CharacterString>Muenster</gco:CharacterString></gmd:city><gmd:country><gco:CharacterString>Germany</gco:CharacterString></gmd:country><gmd:electronicMailAddress><gco:CharacterString>swe@52north.org</gco:CharacterString></gmd:electronicMailAddress></gmd:CI_Address></gmd:address><gmd:onlineResource><gmd:CI_OnlineResource><gmd:linkage><gmd:URL>http://52North.org</gmd:URL></gmd:linkage></gmd:CI_OnlineResource></gmd:onlineResource></gmd:CI_Contact></gmd:contactInfo><gmd:role><gmd:CI_RoleCode codeList="someServer/codeList.xml#CI_RoleCode"codeListValue="pointOfContact"/></gmd:role></gmd:CI_ResponsibleParty></member></ContactList></contacts><!--=============================================================The geometric sensor to which the system is associated==============================================================--><featuresOfInterest><FeatureList><member><sams:SF_SpatialSamplingFeature gml:id="SamplingPoint1">

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11-169r1<gml:identifier codeSpace="">http://myServer.org/features/SamplingPointAt52NorthHeadquarters</gml:identifier><sf:type xlink:href="http://www.opengis.net/def/samplingFeatureType/OGCOM/2.0/SF_SamplingPoint"/><sf:sampledFeature xsi:nil="true"/><sams:shape><gml:Point gml:id="UOMlocation"><gml:pos srsName="http://www.opengis.net/def/crs/EPSG/0/4326">
50.7167 7.76667</gml:pos></gml:Point></sams:shape></sams:SF_SpatialSamplingFeature></member></FeatureList></featuresOfInterest><!--=============================================================The "OutputList"-element has to list up at least all "output"s of the PhysicalSystem.
Each child-element of an "output" has to use the "definition"-attribute to specify the
URI of the observed property. If the child-element of the output is a "swe:Quantity"
it has to contain the "swe:uom" element which specifies the "code" attribute stating
the UCUM code.
==============================================================--><outputs><OutputList><output name="precipitation"><swe:Quantity
definition="http://sweet.jpl.nasa.gov/2.3/phen.owl#Precipitation"><swe:uom code="mm"/></swe:Quantity></output><output name="windSpeed"><swe:Quantity
definition="http://sweet.jpl.nasa.gov/2.0/atmoWind.owl#WindSpeed"><swe:uom code="m/s"/></swe:Quantity></output><output name="temperature"><swe:Quantity
definition="http://sweet.jpl.nasa.gov/2.3/propTemperature.owl#Temperature"><swe:uom code="Cel"/></swe:Quantity></output></OutputList></outputs></PhysicalSystem>

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12 Examples: Sensor Observation Service
12.1

GetCapabilities

12.1.1 Request<?xml version="1.0" encoding="UTF-8"?><soap12:Envelope xmlns:soap12="http://www.w3.org/2003/05/soap-envelope"xsi:schemaLocation="http://www.w3.org/2003/05/soap-envelope
http://www.w3.org/2003/05/soap-envelope/soap-envelope.xsd
http://www.opengis.net/sos/2.0
http://schemas.opengis.net/sos/2.0/sos.xsd"
xmlns:sos="http://www.opengis.net/sos/2.0"
xmlns:wsa="http://www.w3.org/2005/08/addressing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:ows="http://www.opengis.net/ows/1.1"><soap12:Header><wsa:To>http://www.ogc.org/SPS</wsa:To><wsa:Action>http://www.opengis.net/sps/2.0/GetCapabilities</wsa:Action><wsa:ReplyTo><wsa:Address>http://my.client.com/client/myReceiver</wsa:Address></wsa:ReplyTo><wsa:MessageID>http://my.client.com/uid/msg-0010</wsa:MessageID></soap12:Header><soap12:Body><GetCapabilities service="SOS"><ows:AcceptVersions><ows:Version>2.0.0</ows:Version></ows:AcceptVersions><ows:Sections><ows:Section>OperationsMetadata</ows:Section><ows:Section>ServiceIdentification</ows:Section><ows:Section>ServiceProvider</ows:Section><ows:Section>Filter_Capabilities</ows:Section><ows:Section>InsertionCapabilities</ows:Section><ows:Section>Contents</ows:Section></ows:Sections></GetCapabilities></soap12:Body></soap12:Envelope>26

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12.1.2 Response<?xml version="1.0" encoding="UTF-8"?><soap12:Envelope xmlns:soap12="http://www.w3.org/2003/05/soap-envelope"xsi:schemaLocation="http://www.w3.org/2003/05/soap-envelope
http://www.w3.org/2003/05/soap-envelope/soap-envelope.xsd
http://www.opengis.net/sos/2.0
http://schemas.opengis.net/sos/2.0/sos.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:wsa="http://www.w3.org/2005/08/addressing"
xmlns:swe="http://www.opengis.net/swe/2.0"
xmlns:swes="http://www.opengis.net/swes/2.0"
xmlns:ows="http://www.opengis.net/ows/1.1"
xmlns:sos="http://www.opengis.net/sos/2.0"
xmlns:fes="http://www.opengis.net/fes/2.0"
xmlns:gml="http://www.opengis.net/gml/3.2"
xmlns:ogc="http://www.opengis.net/ogc"
xmlns:xlink="http://www.w3.org/1999/xlink"><soap12:Header><wsa:To>http://my.client.com/client/myReceiver</wsa:To><wsa:Action>http://www.opengis.net/sos/2.0/GetCapabilitiesResponse</wsa:Action><wsa:RelatesTo>http://my.client.com/uid/msg-0010</wsa:RelatesTo></soap12:Header><soap12:Body><sos:Capabilities version="2.0.0"><ows:ServiceIdentification><ows:Title>My SOS</ows:Title><ows:ServiceType codeSpace="http://opengeospatial.net">
OGC:SOS</ows:ServiceType><ows:ServiceTypeVersion>1.0.0</ows:ServiceTypeVersion><ows:Profile>http://www.opengis.net/spec/SOS/2.0/conf/gfoi</ows:Profile><ows:Profile>
http://www.opengis.net/spec/SOS/2.0/conf/obsByIdRetrieval</ows:Profile><ows:Profile>
http://www.opengis.net/spec/SOS/2.0/conf/sensorInsertion</ows:Profile><ows:Profile>
http://www.opengis.net/spec/SOS/2.0/conf/sensorDeletion</ows:Profile><ows:Profile>
http://www.opengis.net/spec/SOS/2.0/conf/obsInsertion</ows:Profile><ows:Profile>
http://www.opengis.net/spec/SOS/2.0/conf/resultInsertion</ows:Profile><ows:Profile>
http://www.opengis.net/spec/SOS/2.0/conf/resultRetrieval</ows:Profile><ows:Profile>
http://www.opengis.net/spec/SOS/2.0/conf/spatialFilteringProfile</ows:Profile><ows:Profile>http://www.opengis.net/spec/SOS/2.0/conf/soap</ows:Profile><ows:Profile>
http://www.opengis.net/spec/SWE/2.0/conf/uml-block-components</ows:Profile><ows:Profile>
http://www.opengis.net/spec/SWE/2.0/conf/uml-record-components</ows:Profile><ows:Profile>
http://www.opengis.net/spec/SWE/2.0/conf/xsd-record-components</ows:Profile><ows:Profile>
http://www.opengis.net/spec/SWE/2.0/conf/xsd-block-components</ows:Profile><ows:Profile>
http://www.opengis.net/spec/OMXML/2.0/conf/samplingPoint</ows:Profile><ows:Profile>
http://www.opengis.net/spec/OMXML/2.0/conf/observation</ows:Profile><ows:Fees>NONE</ows:Fees><ows:AccessConstraints>NONE</ows:AccessConstraints></ows:ServiceIdentification><!--=============================================================
The filterCapabilities section lists the filters and operands which aresupported in the observation, result and feature retrieval operations.

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11-169r1==============================================================--><sos:filterCapabilities><fes:Filter_Capabilities><fes:Conformance><fes:Constraint name="ImplementsQuery"><ows:NoValues/><ows:DefaultValue>false</ows:DefaultValue></fes:Constraint><fes:Constraint name="ImplementsAdHocQuery"><ows:NoValues/><ows:DefaultValue>false</ows:DefaultValue></fes:Constraint><fes:Constraint name="ImplementsFunctions"><ows:NoValues/><ows:DefaultValue>false</ows:DefaultValue></fes:Constraint><fes:Constraint name="ImplementsMinStandardFilter"><ows:NoValues/><ows:DefaultValue>false</ows:DefaultValue></fes:Constraint><fes:Constraint name="ImplementsStandardFilter"><ows:NoValues/><ows:DefaultValue>false</ows:DefaultValue></fes:Constraint><fes:Constraint name="ImplementsMinSpatialFilter"><ows:NoValues/><ows:DefaultValue>true</ows:DefaultValue></fes:Constraint><fes:Constraint name="ImplementsSpatialFilter"><ows:NoValues/><ows:DefaultValue>true</ows:DefaultValue></fes:Constraint><fes:Constraint name="ImplementsMinTemporalFilter"><ows:NoValues/><ows:DefaultValue>true</ows:DefaultValue></fes:Constraint><fes:Constraint name="ImplementsTemporalFilter"><ows:NoValues/><ows:DefaultValue>true</ows:DefaultValue></fes:Constraint><fes:Constraint name="ImplementsVersionNav"><ows:NoValues/><ows:DefaultValue>false</ows:DefaultValue></fes:Constraint><fes:Constraint name="ImplementsSorting"><ows:NoValues/><ows:DefaultValue>false</ows:DefaultValue></fes:Constraint><fes:Constraint name="ImplementsExtendedOperators"><ows:NoValues/><ows:DefaultValue>false</ows:DefaultValue></fes:Constraint></fes:Conformance><fes:Spatial_Capabilities><fes:GeometryOperands><fes:GeometryOperand name="gml:Point"/><fes:GeometryOperand name="gml:Polygon"/></fes:GeometryOperands><fes:SpatialOperators><fes:SpatialOperator name="BBOX"/></fes:SpatialOperators></fes:Spatial_Capabilities><fes:Temporal_Capabilities><fes:TemporalOperands><fes:TemporalOperand name="gml:TimePeriod"/><fes:TemporalOperand name="gml:TimeInstant"/></fes:TemporalOperands><fes:TemporalOperators><fes:TemporalOperator name="During"/><fes:TemporalOperator name="TEquals"/>

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11-169r1</fes:TemporalOperators></fes:Temporal_Capabilities></fes:Filter_Capabilities></sos:filterCapabilities><!--=============================================================
The contents section describes the data the SOS instance offers.
==============================================================--><sos:contents><sos:Contents><!--=============================================================
The format in which sensor instances are described.
==============================================================--><swes:procedureDescriptionFormat>http://www.opengis.net/sensorML/2.0</swes:procedureDescriptionFormat><!--=============================================================The observed properties for which the SOS instance offers data.
==============================================================--><swes:observableProperty>
http://sweet.jpl.nasa.gov/2.3/phen.owl#Precipitation</swes:observableProperty><swes:observableProperty>
http://sweet.jpl.nasa.gov/2.0/atmoWind.owl#WindSpeed</swes:observableProperty><swes:observableProperty>
http://sweet.jpl.nasa.gov/2.3/propTemperature.owl#Temperature</swes:observableProperty><!--=============================================================
Listing of the relatedFeature for discovery purposes (e.g. countries inwhich the data was measured. The sampling Features are not listed here!
Sampling features can be queried via GetFeatureOfInterest.
==============================================================--><swes:relatedFeature><swes:FeatureRelationship><swes:target xlink:href="http://myServer.org/features/Germany"/></swes:FeatureRelationship></swes:relatedFeature><swes:relatedFeature><swes:FeatureRelationship><swes:target xlink:href="http://myServer.org/features/Netherlands"/></swes:FeatureRelationship></swes:relatedFeature><!--=============================================================The offerings of the SOS instance. For each offering description,
identifier, name, associated procedure, observed area and time period areprovided.
==============================================================--><swes:offering><sos:ObservationOffering><swes:description>
Offering for observations measured at weather station 123</swes:description><swes:identifier>urn:ogc:object:Offering:52North:weatherStation123</swes:identifier><swes:name>Offering of weather station 123</swes:name><swes:procedure>
urn:ogc:object:feature:Sensor:52North:weatherStation123</swes:procedure><sos:observedArea><gml:Envelope srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:lowerCorner>50.7167 7.76667</gml:lowerCorner><gml:upperCorner>50.7167 7.76667</gml:upperCorner></gml:Envelope></sos:observedArea><sos:phenomenonTime><gml:TimePeriod gml:id="phenomenonTime"><gml:beginPosition>2009-01-11T16:22:25.00Z</gml:beginPosition><gml:endPosition>2011-08-21T08:32:10.00Z</gml:endPosition></gml:TimePeriod>

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11-169r1</sos:phenomenonTime></sos:ObservationOffering></swes:offering><!--=============================================================
The format in which observations are returned.
==============================================================--><sos:responseFormat>http://www.opengis.net/om/2.0</sos:responseFormat><!--=============================================================The supported observation types.
==============================================================--><sos:observationType>http://www.opengis.net/def/observationType/OGC-OM/2.0/OM_Measurement</sos:observationType><sos:observationType>http://www.opengis.net/def/observationType/OGC-OM/2.0/
OM_CountObservation</sos:observationType><sos:observationType>http://www.opengis.net/def/observationType/OGC-OM/2.0/
OM_TruthObservation</sos:observationType><sos:observationType>http://www.opengis.net/def/observationType/OGCOM/2.0/OM_CategoryObservation</sos:observationType><sos:observationType>http://www.opengis.net/def/observationType/OGC-OM/2.0/
om:OM_TextObservation</sos:observationType></sos:Contents></sos:contents></sos:Capabilities></soap12:Body></soap12:Envelope>30

Copyright © 2014 Open Geospatial Consortium

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12.2

DescribeSensor

12.2.1 Request<?xml version="1.0" encoding="UTF-8"?><swes:DescribeSensor xmlns="http://www.opengis.net/swes/2.0" service="SOS"
version="2.0.0"
xmlns:sos="http://www.opengis.net/sos/2.0"
xmlns:fes="http://www.opengis.net/fes/2.0"
xmlns:gml="http://www.opengis.net/gml/3.2"
xmlns:swe="http://www.opengis.net/swe/2.0"
xmlns:swes="http://www.opengis.net/swes/2.0"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.opengis.net/swes/2.0
http://schemas.opengis.net/swes/2.0/swes.xsd"><procedure>urn:ogc:object:feature:Sensor:52North:weatherStation123</procedure><procedureDescriptionFormat>
http://www.opengis.net/sensorml/1.0.1</procedureDescriptionFormat></swes:DescribeSensor>

12.2.2 Response

For the response, please refer to section 11.

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12.3

GetObservation

12.3.1 Request<?xml version="1.0" encoding="UTF-8"?><soap12:Envelope xmlns:soap12="http://www.w3.org/2003/05/soap-envelope"xsi:schemaLocation="http://www.w3.org/2003/05/soap-envelope
http://www.w3.org/2003/05/soap-envelope/soap-envelope.xsd
http://www.opengis.net/sos/2.0 http://schemas.opengis.net/sos/2.0/sos.xsd"
xmlns:sos="http://www.opengis.net/sos/2.0"
xmlns:wsa="http://www.w3.org/2005/08/addressing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:swe="http://www.opengis.net/swe/2.0"
xmlns:swes="http://www.opengis.net/swes/2.0"
xmlns:fes="http://www.opengis.net/fes/2.0"
xmlns:gml="http://www.opengis.net/gml/3.2"
xmlns:ogc="http://www.opengis.net/ogc"
xmlns:om="http://www.opengis.net/om/1.0"><soap12:Header><wsa:To>http://www.ogc.org/SOS</wsa:To><wsa:Action>http://www.opengis.net/sos/2.0/GetObservation</wsa:Action><wsa:ReplyTo><wsa:Address>http://my.client.com/client/myReceiver</wsa:Address></wsa:ReplyTo><wsa:MessageID>http://my.client.com/uid/msg-0010</wsa:MessageID></soap12:Header><soap12:Body><GetObservation service="SOS" version="2.0.0"><!--=============================================================The observed properties for which data is requested==============================================================--><observedProperty>
http://sweet.jpl.nasa.gov/2.3/phen.owl#Precipitation</observedProperty><observedProperty>
http://sweet.jpl.nasa.gov/2.3/propTemperature.owl#Temperature</observedProperty><!--=============================================================The time period for which data is requested==============================================================--><temporalFilter><fes:During><fes:ValueReference>phenomenonTime</fes:ValueReference><gml:TimePeriod gml:id="tp1"><gml:beginPosition>2008-01-01</gml:beginPosition><gml:endPosition>2011-05-01T17:44:15+00:00</gml:endPosition></gml:TimePeriod></fes:During></temporalFilter><!--=============================================================The observed feature of interest for which data is requested==============================================================--><featureOfInterest>
http://myServer.org/features/SamplingPointAt52NorthHeadquarters</featureOfInterest></GetObservation></soap12:Body></soap12:Envelope>

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12.3.2 Response<?xml version="1.0" encoding="UTF-8"?><soap12:Envelope xmlns:soap12="http://www.w3.org/2003/05/soap-envelope"xsi:schemaLocation="http://www.w3.org/2003/05/soap-envelope
http://www.w3.org/2003/05/soap-envelope/soap-envelope.xsd
http://www.opengis.net/sos/2.0
http://schemas.opengis.net/sos/2.0/sos.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:wsa="http://www.w3.org/2005/08/addressing"
xmlns:swe="http://www.opengis.net/swe/2.0"
xmlns:swes="http://www.opengis.net/swes/2.0"
xmlns:ows="http://www.opengis.net/ows/1.1"
xmlns:sos="http://www.opengis.net/sos/2.0"
xmlns:fes="http://www.opengis.net/fes/2.0"
xmlns:gml="http://www.opengis.net/gml/3.2"
xmlns:ogc="http://www.opengis.net/ogc"
xmlns:om="http://www.opengis.net/om/2.0"
xmlns:xlink="http://www.w3.org/1999/xlink"><soap12:Header><wsa:To>http://my.client.com/client/myReceiver</wsa:To><wsa:Action>http://www.opengis.net/sos/2.0/GetObservationResponse</wsa:Action><wsa:RelatesTo>http://my.client.com/uid/msg-0010</wsa:RelatesTo></soap12:Header><soap12:Body><sos:GetObservationResponse xmlns="http://www.opengis.net/sos/2.0"><!--=============================================================
An observationData elements containing an O&M observation==============================================================--><observationData><om:OM_Measurement gml:id="o1"><gml:identifier codeSpace="not_used">obsTestWeatherStation</gml:identifier><om:phenomenonTime><gml:TimeInstant gml:id="p1"><gml:timePosition>2009-01-11T16:22:25.00Z</gml:timePosition></gml:TimeInstant></om:phenomenonTime><om:resultTime xlink:href="#p1"/><om:procedure
xlink:href="urn:ogc:object:feature:Sensor:52North:weatherStation123"/><om:observedProperty
xlink:href="http://sweet.jpl.nasa.gov/2.3/propTemperature.owl#Temperature"/><om:featureOfInterest
xlink:href="http://myServer.org/features/
SamplingPointAt52NorthHeadquarters"/><om:result xsi:type="gml:MeasureType" uom="Cel">28</om:result></om:OM_Measurement></observationData><!--=============================================================
Multiple observationData elements containing O&M observations as described in
section 10==============================================================--></sos:GetObservationResponse></soap12:Body></soap12:Envelope>

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11-169r1
12.4

GetFeatureOfInterest

12.4.1 Request<?xml version="1.0" encoding="UTF-8"?><soap12:Envelope xmlns:soap12="http://www.w3.org/2003/05/soap-envelope"xsi:schemaLocation="http://www.w3.org/2003/05/soap-envelope
http://www.w3.org/2003/05/soap-envelope/soap-envelope.xsd
http://www.opengis.net/sos/2.0
http://schemas.opengis.net/sos/2.0/sos.xsd"
xmlns:sos="http://www.opengis.net/sos/2.0"
xmlns:wsa="http://www.w3.org/2005/08/addressing"
xmlns:fes="http://www.opengis.net/fes/2.0"
xmlns:gml="http://www.opengis.net/gml/3.2"
xmlns:swe="http://www.opengis.net/swe/2.0"
xmlns:swes="http://www.opengis.net/swes/2.0"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><soap12:Header><wsa:To>http://mySOSURL</wsa:To><wsa:Action>http://www.opengis.net/sos/2.0/GetFeatureOfInterest</wsa:Action><wsa:ReplyTo><wsa:Address>http://my.client.com/client/myReceiver</wsa:Address></wsa:ReplyTo><wsa:MessageID>http://my.client.com/uid/msg-0010</wsa:MessageID></soap12:Header><soap12:Body><GetFeatureOfInterest xmlns="http://www.opengis.net/sos/2.0" service="SOS"
version="2.0.0"><!--=============================================================
Sptatial filter describing the bounding box for which features of interest arerequested.
==============================================================--><spatialFilter><fes:Contains><fes:ValueReference>sams:shape</fes:ValueReference><gml:Envelope srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:lowerCorner>50 4</gml:lowerCorner><gml:upperCorner>53 8</gml:upperCorner></gml:Envelope></fes:Contains></spatialFilter></GetFeatureOfInterest></soap12:Body></soap12:Envelope>

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11-169r1
12.4.2 Response<?xml version="1.0" encoding="UTF-8"?><soap12:Envelope xmlns:soap12="http://www.w3.org/2003/05/soap-envelope"xsi:schemaLocation="http://www.w3.org/2003/05/soap-envelope
http://www.w3.org/2003/05/soap-envelope/soap-envelope.xsd
http://www.opengis.net/samplingSpatial/2.0
http://schemas.opengis.net/samplingSpatial/2.0/spatialSamplingFeature.xsd
http://www.opengis.net/sos/2.0 http://schemas.opengis.net/sos/2.0/sos.xsd"
xmlns:sos="http://www.opengis.net/sos/2.0"
xmlns:wsa="http://www.w3.org/2005/08/addressing"
xmlns:fes="http://www.opengis.net/fes/2.0"
xmlns:gml="http://www.opengis.net/gml/3.2"
xmlns:swe="http://www.opengis.net/swe/2.0"
xmlns:swes="http://www.opengis.net/swes/2.0"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:sams="http://www.opengis.net/samplingSpatial/2.0"
xmlns:sf="http://www.opengis.net/sampling/2.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><soap12:Header><wsa:To>http://mySOSURL</wsa:To><wsa:Action>
http://www.opengis.net/sos/2.0/GetFeatureOfInterestResponse</wsa:Action><wsa:ReplyTo><wsa:Address>http://my.client.com/client/myReceiver</wsa:Address></wsa:ReplyTo><wsa:MessageID>http://my.client.com/uid/msg-0010</wsa:MessageID></soap12:Header><soap12:Body><sos:GetFeatureOfInterestResponse xmlns="http://www.opengis.net/sos/2.0"><featureMember><!--=============================================================
One feature of interest.
==============================================================--><sams:SF_SpatialSamplingFeature gml:id="SamplingPoint1"><gml:identifier codeSpace="">http://myServer.org/features/SamplingPointAt52NorthHeadquarters</gml:identifier><sf:type xlink:href="http://www.opengis.net/def/samplingFeatureType/OGCOM/2.0/SF_SamplingPoint"/><sf:sampledFeature xsi:nil="true"/><sams:shape><gml:Point gml:id="UOMlocation"><gml:pos srsName="http://www.opengis.net/def/crs/EPSG/0/4326">
50.7167 7.76667</gml:pos></gml:Point></sams:shape></sams:SF_SpatialSamplingFeature></featureMember><!--=============================================================
Further featureMember element may follow if multiple features apply to thecriteria specified in the request.
==============================================================--></sos:GetFeatureOfInterestResponse></soap12:Body></soap12:Envelope>

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