Running RSIG in Your Web

Browser

Follow these directions to

set Java Runtime Engine

memory parameters.

1. 

2. Run the RSIG applet.

Running RSIG as a

Standalone Application

Right-click here to save

the file your Home

directory; when saving,

name the file

"RSIG2D.zip". On Windows

7, for example, the home

directory is C:\Users

\userid.

1. 

To run RSIG, double-click

rsig2d.bat (Windows) or

the rsig2d script

(Mac/Linux).

2. 

You are here: EPA Home Programs Research Environmental Modeling & Visualization Lab (EMVL) Remote

Sensing Information Gateway (RSIG)

Remote Sensing Information Gateway (RSIG)

If you are having trouble running RSIG, you may need to clear the Java

applet cache. Check the RSIG version number in the lower right corner

of the applet, under the contact information. If the version number is

2014062718, then your applet version is up-to-date. If not, follow these

instructions to clear the cache:

Windows instructions.

Mac instructions.

Mac OSX 10.8 users should use Firefox to run the RSIG2D applet.

The Remote Sensing Information Gateway (RSIG) allows for quick and easy access to subsets of multi-terabyte,

environmental datasets via an interactive, Web browser-based application. A file download and parsing process

that typically takes months is reduced to minutes with RSIG.

About RSIG

RSIG Updated with New Features

RSIG's Availability

RSIG's Key Features

RSIG's Architecture

RSIG Video Demonstration

About RSIG

RSIG also allows users to integrate their selected

datasets into a unified visualization. The user can

tap into a wide range of key environmental models

and data, such as NASA's Moderate Resolution

Imaging Spectroradiometer (MODIS), the

Environmental Protection Agency's (EPA) Community Multi-scale Air Quality (CMAQ) model output, National

Environmental Satellite, Data, and Information Service (NESDIS) biomass burning data, and ground station

measurements from AIRNow and EPA's Air Quality System (AQS).

RSIG will render each dataset, and then overlay them on a map of the selected region, automatically aligning

information from various spatial and temporal scales into a unified visualization.

Currently, RSIG focuses on atmospheric data, but it can be extended to support other types of geospatial data. A

list of available datasets accessible via RSIG is available on this site.

The benefit to users and consumers of environmental data is fast acquisition of only the data they want to see

and in a standard format they can save to their desktop PC.

RSIG Updated with New Features

June 2012: Added NEUBrew (NOAA-EPA Brewer Spectrophotometer UV and Ozone Network) ozone profile data.

High Performance Computing and Scientific Visualization

http://ofmpub.epa.gov/rsig/rsigserver?index.html

Last updated on 9/16/2015

Remote Sensing Information Gateway | EMVL | US EPA http://ofmpub.epa.gov/rsig/rsigserver?index.html

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March 2012: Added CALIPSO Level-2 5km Aerosol and Cloud Profiles.

Remote Sensing Information Gateway | EMVL | US EPA http://ofmpub.epa.gov/rsig/rsigserver?index.html

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With additional data-filtering options.

Remote Sensing Information Gateway | EMVL | US EPA http://ofmpub.epa.gov/rsig/rsigserver?index.html

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And MODIS Level-2 10km "Deep Blue" Aerosol Optical Depth (over sand / high-reflectance).

Remote Sensing Information Gateway | EMVL | US EPA http://ofmpub.epa.gov/rsig/rsigserver?index.html

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January 24, 2011: Added a color topo map background.

May 12, 2010: EMVL released a new version of RSIG. Among the new features and developments:

New data: MOZAIC European-based global commercial aircraft flight measured ozone, CO, NO data

MOZAIC (currently under restricted access pending an agreement between EPA and European scientists).

Remote Sensing Information Gateway | EMVL | US EPA http://ofmpub.epa.gov/rsig/rsigserver?index.html

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CALIPSO data is spatially aggregated and uses a new NASA-designed colormap resulting in a much

clearer depiction of the data. Note this aggregating is only done during visualization. During regridding

and saving the data is at the original full resolution.

New data: GOES-GASP Geostationary US-coverage satellite 4km Aerosol Optical Depth data.GOES-GASP

Comparison (difference, absolute difference, percent difference, ratio, after regridding) of Ozone, AOD,

PM25 from MODIS, FAQSD, GASP, MOZAIC, Airnow and AQS to CMAQ.

Remote Sensing Information Gateway | EMVL | US EPA http://ofmpub.epa.gov/rsig/rsigserver?index.html

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Intersection of CALIPSO and MOZAIC 4D path in CMAQ grid. I.e., extract CMAQ data for each lon-latelevation-time of the other data.

New data: AQS ground station measured data: SO2, Temperature and Relative Humidity.

New data: Access to newest version (April 2010 collection 5.1) MODIS L2 data. (Icelandic volcano plume

shown.)

Remote Sensing Information Gateway | EMVL | US EPA http://ofmpub.epa.gov/rsig/rsigserver?index.html

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In this screenshot, the Remote Sensing Information Gateway (RSIG) overlays multiple

datasets into a single visualization that you can save as an animation or individual image

files.

RSIG's Availability

One of RSIG's key innovations is its data delivery using conventional Internet and Web network connections.

However, additional data traffic during peak network usage may degrade the overall system responsiveness or a

remote host's system may be unavailable or unresponsive. The RSIG applet will display messages signaling data

unavailability in such cases.

RSIG's Key Features

One access point to

many data sources. The

RSIG provides a single Web

site that serves as a

selective access point to

many kinds of data.

Streams only the

needed data. The RSIG

accesses large numbers of

files from diverse sources

and streams the

user-selected subset of

data back to the user's

desktop. Streaming works

in the same way as

streaming audio works on

the Web: the data goes

directly to the client

computer's memory and is

discarded unless the user

saves it to a file.

Aggregates separate

data files into a single

stream. RSIG aggregates

the multiple files of a given

data type into a single

stream, reducing the

download burden and

simplifying data analysis.

Built-in visualization.

RSIG can immediately

integrate multiple selected

datasets into a single MPEG

animation. For example,

EPA AIRNow data can be

layered over NASA's MODIS satellite data, or a user can compare CMAQ predicted outputs and actual

ground sensor data. The user can also save the animation or individual images to their computer.

Saves data to standard formats. RSIG integrates incoming proprietary dataset formats into standard

formats the user can save on their computer. A user can save the data or visualization--or both--to their

Remote Sensing Information Gateway | EMVL | US EPA http://ofmpub.epa.gov/rsig/rsigserver?index.html

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local computer in such standard formats as portable binary, ASCII, NetCDF IOAPI and COARDS, GeoTIFF,

MPEG and KMZ. The user can then export the selected datasets from RSIG into other applications--such

as GIS tools--for further analysis

Fast. RSIG accomplishes all of this far faster than a lone user could with currently available means. For

example, RSIG can capture a week of MODIS AOD data in a few minutes, compared to two months using

conventional web-form ordering/ftp approaches.

RSIG's Architecture

This poster describes in detail RSIG's flexible and extensible architecture. The architecture enables RSIG to serve

many types of data with an emphasis on convenience, high-performance, data integrity, and security. Depending

on the speed of your connection, the poster may take a few seconds to load for viewing.

Design Of A Webservice and Application For Quick Easy Access To Subsets Of Petabytes Of Air Quality

Data (poster 60 x 45 inches, 1 pg, 9MB, About PDF)

RSIG Video Demonstration

This 26-second screen capture shows RSIG retrieving various datasets describing the passage of Hurricane

Katrina through the Gulf region. Five days of satellite, wind, and cloud data clearly show Katrina's path as it

makes landfall. Atmospheric researchers can use RSIG to easily view and retrieve all datasets related to a

specific event, making it possible for them to analyze the data much closer to real-time than has been possible

before. Right-click on the link to download or view the animation:

RSIG Video Demonstration (QuickTime, 7.6 MB, 300x240). Requires the QuickTime Player plug-in.

RSIG Video Demonstration (Windows Media, 3.4 MB, 300x240). Requires Windows Media Player, which is

included with the Windows operating system. No plug-in is needed if you are using a Windows system.

Remote Sensing Information Gateway | EMVL | US EPA http://ofmpub.epa.gov/rsig/rsigserver?index.html

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