NASA/TMm2000-209891, Vol. 194

Technical Report Series on the

Boreal Ecosystem-Atmosphere Study (BOREAS)

Forrest G. Hall and Karl Huemmrich, Editors

Volume 194

BOREAS TF-2 SSA-OA Tethersonde

Meteorological and Ozone Data

A. James Arnold and Robert E. Mickle

Atmospheric Environment Service, Downsview, Ontario

National Aeronautics and

Space Administration

Goddard Space Flight Center

Greenbelt, Maryland 20771

October 2000

https://ntrs.nasa.gov/search.jsp?R=20010022100 2018-05-15T06:38:49+00:00Z
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NASA/TMm2000-209891, Vol. 194

Technical Report Series on the

Boreal Ecosystem-Atmosphere Study (BOREAS)

Forrest G. Hall and Karl Huemmrich, Editors

Volume 194

BOREAS TF-2 SSA-OA Tethersonde

Meteorological and Ozone Data

A. James Arnold and Robert E. Mickle

Atmospheric Environment Service, Downsview, Ontario

National Aeronautics and

Space Administration

Goddard Space Flight Center

Greenbelt, Maryland 20771

October 2000
NASACenterforAeroSpaceInformation

7121StandardDrive

Hanover,MD21076-1320

PriceCode:A17

Availablefrom:

NationalTechnicalInformationService

5285PortRoyalRoad

Springfield,VA22161

PriceCode:A10
BOREAS TF-2 SSA-OA Tethersonde Meteorological and Ozone Data

A. James Arnold, Robert E. Mickle

Summary

The BOREAS TF-2 team collected meteorological and ozone measurements from instruments mounted

below a tethered balloon. These data were collected at the SSA-OA site to extend meteorological and

ozone measurements made from the flux tower to heights of 300 m. The tethersonde operated during

the fall of 1993 and the spring, summer, and fall of 1994. The data are available in tabular ASCII files.

Table of Contents

1) Data Set Overview

2) Investigator(s)

3) Theory of Measurements

4) Equipment

5) Data Acquisition Methods

6) Observations

7) Data Description

8) Data Organization

9) Data Manipulations

10) Errors

11) Notes

12) Application of the Data Set

13) Future Modifications and Plans

14) Software

15) Data Access

16) Output Products and Availability

17) References

18) Glossary of Terms

19) List of Acronyms

20) Document Information

1. Data Set Overview

1.1 Data Set Identification

BOREAS TF-02 SSA-OA Tethersonde Meteorological and Ozone Data

1.2 Data Set Introduction

A tethersonde program was carried out at the BOReal Ecosystem-Atmosphere Study (BOREAS)

Southern Study Area (SSA) Old Aspen (OA) site to extend meteorological and ozone measurements

made from the flux tower to heights of 300 m. Launched from a clearing approximately 100 m from

the main tower, an Atmospheric Instrumentation Research (AIR) tethersonde package was mounted

below a 25-m3 tethered balloon and profiled during selected periods of the field experiment. For most

of the profiles, a Mast-Brewer ozone sonde was coupled to the tethersonde. Data were collected in the

fall of 1993 and during the Intensive Field Campaigns (IFCs) of 1994.

1.3 Objective/Purpose

The purpose of this study was to characterize the atmosphere's vertical structure in terms of air

pressure, temperature, humidity, winds, and ozone concentration to complement and extend the data

being collected from the SSA-OA flux tower and flux aircraft.

Page 1
1.4 Summary of Parameters and Variables

From the tethersonde, vertical profiles of air temperature, potential temperature, relative humidity,

air pressure, wind speed and direction, and ozone concentration were collected. Measurements were

located along the profiles by the height above ground level.

1.5 Discussion

This study measured high-resolution vertical profiles of temperature, humidity, pressure, wind

speed and direction, and ozone concentration in the lower atmospheric boundary layer. An AIR

tethersonde package (TS-3A-SP) was mounted below a 25 m3 tethered balloon and profiled during

selected periods of the field experiment. For most of the profiles, a Mast-Brewer ozone sonde (AIR

OZ-3A-T) was coupled to the tethersonde. The tethersonde was raised and lowered using a heavy-duty

winch.

1.6 Related Data Sets

BOREAS TF-02 SSA-OA Tower Flux and Meteorological Data

BOREAS TF-01 SSA-OA Undercanopy Flux, Meteorological, and Snow/Soil Temp Data

2. Investigator(s)

2.1 Investigator(s) Name and Title

Robert E. Mickle

Atmospheric Environment Service

A. James Arnold

Atmospheric Environment Service

2.2 Title of Investigation

AES Flux Tower Measurements for BOREAS: Exchange of Energy, Water Vapor, and Trace

Gases Project

2.3 Contact Information

Contact 1:

A. James Arnold

Atmospheric Environment Service

4905 Dufferin Street

Downsview, Ontario M3H 5T4

Canada

(416) 739-4855

(416) 739-4293 (fax)

jim.arnold@ec.gc.ca

Contact 2:

Robert E. Mickle

Atmospheric Environment Service

4905 Dufferin Street

Downsview, Ontario M3H 5T4

Canada

REMSpC@ golden.net

Page 2
Contact 3:

K. Fred Huemmrich

University of Maryland

Code 923

NASA GSFC

Greenbelt, MD 20771

(301) 286-4862

(301) 286-0239 (fax)

Karl.Huemmrich@gsfc.nasa.gov

3. Theory of Measurements

A helium-filled balloon can lift instruments off of the ground and provides a stable platform for

measurements at altitudes higher than can be reached by towers. Tethering the balloon allows control

of the balloon's altitude and ensures retrieval of the attached instruments. The tether also lets one

control the rates of ascent and descent. Because of these features, the tethersonde is able to provide

high-resolution vertical profiles of the characteristics of the lower atmospheric boundary layer.

4. Equipment

4.1 Sensor/Instrument Description

4.1.1 Collection Environment

The tethersonde could not be launched under conditions of high wind speeds.

4.1.2 Source/Platform

Instruments were attached below a 25-m3 tethered balloon. The tethersonde was launched from a

clearing approximately 100 m from the SSA-OA flux tower. The tethersonde reached heights of 300

m, and was raised and lowered using a heavy-duty winch.

4.1.3 Source/Platform Mission Objectives

The purpose of the tethersonde was to allow vertical profiles of atmospheric variables to be

measured at heights greater than the flux tower.

4.1.4 Key Variables

Vertical profiles of air temperature, potential temperature, relative humidity, air pressure, wind

speed and direction, and ozone concentration were collected. Measurements were located along the

profiles by the height above ground level.

4.1.5 Principles of Operation

The tethersonde supported an AIR tethersonde package (TS-3A-SP). The sensors include dry and

wet bulb thermistors, an aneroid capacitance barometer, a three-cup anemometer with tachometer, and

a magnetic compass. Humidity was obtained using dry and wet bulb measurements and the

psychometric equation. For most of the profiles a Mast-Brewer ozone sonde (AIR OZ-3A-T) was

coupled to the tethersonde.

4.1.6 Sensor/Instrument Measurement Geometry

The instruments were suspended under a 25-m3 balloon. The height of the measurements and the

rate of ascent or descent were controlled by the winch on the ground.

Page 3
4.1.7 Manufacturer of Sensor/Instrument

Tethersonde package (TS-3A-SP) and ozone sonde (AIR OZ-3A-T):

AIR, Inc.

8401 Baseline Rd.

Boulder, CO 80303

(303) 499-1701

(303) 499-1767 (fax)

rons@airmfg.com

4.2 Calibration

4.2.1 Specifications

Factory calibrations for the meteorology package provided sensor precision of 0.5 °C for air

temperature, 5 percent for relative humidity, 1 mb for the aneroid barometer, 0.25 m/s for wind speed,

and 5 ° for wind direction. Prior to and after each profile, the ozone sonde was calibrated against a

Dasibi (Model 1008-RS) calibrator/analyzer to minimize drift due to cell aging. Calibrations were

repeatable to within 3 ppb.

4.2.1.1 Tolerance

The wet and dry bulb thermistors operated over a range of 50 to -70 °C with a precision of 0.5 °C

and a resolution of 0.01 °C. The aneroid barometer operated over a range of 1050 to 600 mb with a

precision of 1 mb and a resolution of 0.1 rob. The anemometer measured wind speed over the range 0

to 20 m/s with a precision of 0.25 m/s and a resolution of 0.01 m/s. The wind direction was measured

over a range of 2 to 358 ° with a precision of 5 ° and a resolution of 1°.

4.2.2 Frequency of Calibration

Prior to and after each profile, the ozone sonde was calibrated against a Dasibi (Model 1008-RS )

calibrator/analyzer to minimize drift due to cell aging.

4.2.3 Other Calibration Information

None.

5. Data Acquisition Methods

Launched from a clearing approximately 100 m from the main tower, an AIR tethersonde package was

mounted below a 25 m3 tethered balloon and profiled during selected periods of the field experiment.

The height of the measurements and the rate of ascent or descent were controlled by the winch on the

ground. The tethersonde could not be launched under conditions of high wind speeds.

6.1 Data Notes

None.

6.2 Field Notes

None.

6. Observations

Page 4
7. Data Description

7.1 Spatial Characteristics

7.1.1 Spatial Coverage

All data were collected at the BOREAS SSA-OA site. The tethersonde was launched from a

clearing 100 m from the flux tower. The North American Datum of 1983 (NAD83) coordinates for the

SSA-OA flux tower are latitude 53.62889 ° N, longitude 106.19779 ° W, and elevation of 600.63 m.

7.1.2 Spatial Coverage Map

Not available.

7.1.3 Spatial Resolution

The spatial resolution of the measurements is dependent on sonde height and atmospheric

conditions.

7.1.4 Projection

Not applicable.

7.1.5 Grid Description

Not applicable.

7.2 Temporal Characteristics

7.2.1 Temporal Coverage

Data were collected in 1993 from 17-Oct to 31-Oct. In 1994, data were collected during the periods

of 26-May to 12-Jun, 21-Jul to 09-Aug, and 31-Aug to 19-Sep, corresponding to the IFCs.

7.2.2 Temporal Coverage Map

None.

7.2.3 Temporal Resolution

Samples were collected at a rate of one every l0 seconds.

7.3 Data Characteristics

7.3.1 Parameter/Variable

The parameters contained in the data files on the CD-ROM are:

Column Name

SITE NAME

SUB SITE

DATE OBS

TIME OBS

HT AGL

ATMOSPHERIC PRESS

AIR TEMP

REL HUM

POTENTIAL TEMP

WIND SPEED

WIND DIR

OZONE CONC

CRTFCN CODE

REVISION DATE

Page 5
7.3.2 Variable Description/Definition

The descriptions of the parameters contained in the data files on the CD-ROM are:

Column Name Description

SITE NAME

SUB SITE

DATE OBS

TIME OBS

HT AGL

ATMOSPHERIC PRESS

AIR TEMP

REL HUM

POTENTIAL TEMP

WIND SPEED

WIND DIR

OZONE CONC

CRTFCN CODE

REVISION DATE

The identifier assigned to the site by BOREAS, in

the format SSS-TTT-CCCCC, where SSS identifies

the portion of the study area: NSA, SSA, REG,

TRN, and TTT identifies the cover type for the

site, 999 if unknown, and CCCCC is the identifier

for site, exactly what it means will vary with

site type.

The identifier assigned to the sub-site by BOREAS,

in the format GGGGG-IIIII, where GGGGG is the

group associated with the sub-site instrument,

e.g. HYD06 or STAFF, and IIIII is the identifier

for sub-site, often this will refer to an

instrument.

The date on which the data were collected.

The Greenwich Mean Time (GMT) when the data were

collected.

The height above ground at which the measurements

were taken.

The atmospheric pressure.

The air temperature.

The calculated relative humidity.

The measured potential temperature.

The wind speed.

The direction from which the wind was traveling,

increasing in a clockwise direction from north.

The ozone concentration.

The BOREAS certification level of the data.

Examples are CPI (Checked by PI), CGR (Certified

by Group), PRE (Preliminary), and CPI-??? (CPI but

questionable).

The most recent date when the information in the

referenced data base table record was revised.

7.3.3 Unit of Measurement

The measurement units for the parameters contained in the data files on the CD-ROM are:

Column Name Units

SITE NAME

SUB SITE

DATE OBS

TIME OBS

HT AGL

ATMOSPHERIC PRESS

AIR TEMP

REL HUM

POTENTIAL TEMP

WIND SPEED

WIND DIR

[none]

[none]

[DD-MON-YY]

[HHMM GMT]

[meters]

[kiloPascals]

[degrees Celsius]

[percent]

[degrees Kelvin]

[meters] [second^-l]

[degrees]

Page 6
OZONE CONC [parts per billion]

CRTFCN CODE [none]

REVISION DATE [DD-MON-YY]

7.3.4 Data Source

The sources of the parameter values contained in the data files on the CD-ROM are:

Column Name Data Source

SITE NAME

SUB SITE

DATE OBS

TIME OBS

HT AGL

ATMOSPHERIC PRESS

AIR TEMP

REL HUM

POTENTIAL TEMP

WIND SPEED

WIND DIR

OZONE CONC

CRTFCN CODE

REVISION DATE

[Assigned by BORIS.]

[Assigned by BORIS.]

[Supplied by Investigator.]

[Supplied by Investigator.]

[measurement of cable]

[aneroid capacitance barometer]

[dry bulb thermistor]

[dry and wet bulb thermistors]

[dry and wet bulb thermistors]

[cup anemometer]

[windvane]

[Mast-Brewer ozone sonde]

[Assigned by BORIS.]

[Assigned by BORIS.]

7.3.5 Data Range

The following table gives information about the parameter values found in the data files on the

CD-ROM.

Minimum Maximum Missng Unrel Below Data

Data Data Data Data Detect Not

Column Name Value Value Value Value Limit Cllctd

SITE NAME SSA-9OA-FLXTR SSA-9OA-FLXTR None None None None

SUB SITE 9TF02-TET01 9TF02-TET01 None None None None

DATE OBS 17-OCT-93 09-AUG-94 None None None None

TIME OBS 0 2359 None None None None

HT AGL -839.6 324.17 -999 None None None

ATMOSPHERIC PRESS 90.06 8888.888 -999 None None None

AIR TEMP -13.01 29.58 -999 None None None

REL HUM 32.13 i00 -999 None None None

POTENTIAL TEMP 266.33 307.73 -999 None None None

WIND SPEED 0 35.5 -999 None None None

WIND DIR .01 360 -999 None None None

OZONE CONC 6.29 86.02 -999 None None None

CRTFCN CODE CPI CPI None None None None

REVISION DATE 04-AUG-99 04-AUG-99 None None None None

Minimum Data Value -- The minimum value found in the column.

Maximum Data Value -- The maximum value found in the column.

Missng Data Value -- The value that indicates missing data. This is used to

indicate that an attempt was made to determine the

parameter value, but the attempt was unsuccessful.

Unrel Data Value -- The value that indicates unreliable data. This is used

to indicate an attempt was made to determine the

parameter value, but the value was deemed to be

Page 7
Below Detect Limit

Data Not Cllctd

unreliable by the analysis personnel.

The value that indicates parameter values below the

instruments detection limits. This is used to

indicate that an attempt was made to determine the

parameter value, but the analysis personnel determined

that the parameter value was below the detection

limit of the instrumentation.

This value indicates that no attempt was made to

determine the parameter value. This usually

indicates that BORIS combined several similar but

not identical data sets into the same data base table

but this particular science team did not

measure that parameter.

Blank -- Indicates that blank spaces are used to denote that type of value.

N/A -- Indicates that the value is not applicable to the respective column.

None -- Indicates that no values of that sort were found in the column.

7.4 Sample Data Record

The following are wrapped versions of data records from a sample data file on the CD-ROM.

SITE NAME,SUB SITE,DATE OBS,TIME OBS,HT AGL,ATMOSPHERIC PRESS,AIR TEMP,REL HUM,

POTENTIAL TEMP,WIND SPEED,WIND DIR, OZONE CONC,CRTFCN CODE,REVISION DATE

'SSA-9OA-FLXTR', '9TF02-TET01',01-JUN-94,654,0.0,95.26,9.13,-999.0,286.23, .15,

177.0,40.53, 'CPI',04-AUG-99

'SSA-9OA-FLXTR', '9TF02-TET01',01-JUN-94,654,-.29,95.26,9.13,-999.0,286.23, .i,

177.0,40.5, 'CPI',04-AUG-99

'SSA-9OA-FLXTR', '9TF02-TET01',01-JUN-94,655,-.58,95.27,9.16,-999.0,286.25, .03,

183.0,40.49, 'CPI',04-AUG-99

8. Data Organization

8.1 Data Granularity

The smallest unit of data tracked by the BOREAS Information System (BORIS) was data collected

at a given site on a given date.

8.2 Data Format

The Compact Disk-Read-Only Memory (CD-ROM) files contain American Standard Code for

Information Interchange (ASCII) numerical and character fields of varying length separated by

commas. The character fields are enclosed with single apostrophe marks. There are no spaces between

the fields.

Each data file on the CD-ROM has four header lines of Hyper-Text Markup Language (HTML)

code at the top. When viewed with a Web browser, this code displays header information (data set

title, location, date, acknowledgments, etc.) and a series of HTML links to associated data files and

related data sets. Line 5 of each data file is a list of the column names, and line 6 and following lines

contain the actual data.

Page 8
9. Data Manipulations

9.1 Formulae

9.1.1 Derivation Techniques and Algorithms

Humidity was obtained using dry and wet bulb measurements and the psychometric equation.

9.2 Data Processing Sequence

9.2.1 Processing Steps

BORIS staff processed these data by:

• Reviewing the initial data files and loading them online for BOREAS team access.

• Designing relational data base tables to inventory and store the data.

• Loading the data into the relational data base tables.

• Working with the team to document the data set.

• Extracting the data into logical files.

9.2.2 Processing Changes

None.

9.3 Calculations

9.3.1 Special Corrections/Adjustments

None given.

9.3.2 Calculated Variables

Humidity was obtained using dry and wet bulb measurements and the psychometric equation.

9.4 Graphs and Plots

None given.

10. Errors

10.1 Sources of Error

Prior to and after each profile, the ozone sonde was calibrated against a Dasibi (Model 1008-RS )

calibrator/analyzer to minimize drift due to cell aging.

10.2 Quality Assessment

10.2.1 Data Validation by Source

Data were examined by investigators to check for unreasonable values.

10.2.2 Confidence Level/Accuracy Judgment

None given.

10.2.3 Measurement Error for Parameters

The wet and dry bulb thermistors operated over a range of 50 to -70 °C with a precision of 0.5 °C

and a resolution of 0.01 °C. The aneroid barometer operated over a range of 1050 to 600 mb with a

precision of 1 mb and a resolution of 0.1 mb. The anemometer measured wind speed over the range 0

to 20 m/s with a precision of 0.25 m/s and a resolution of 0.01 m/s. The wind direction was measured

over a range of 2 to 358 ° with a precision of 5 ° and a resolution of 1°.

Page 9
10.2.4 Additional Quality Assessments

None.

10.2.5 Data Verification by Data Center

Data were examined to check for spikes, values that are four standard deviations from the mean,

long periods of constant values, and missing data.

11. Notes

11.1 Limitations of the Data

The tethersonde could not be launched under conditions of high wind speeds.

11.2 Known Problems with the Data

None given.

11.3 Usage Guidance

None given.

11.4 Other Relevant Information

None given.

12. Application of the Data Set

The data can be used for monitoring the development of the boundary layer and atmospheric movement

and condition. In addition, the data can be used for comparisons with field studies occurring during

respective IFCs.

None.

13. Future Modifications and Plans

14.1 Software Description

None.

14.2 Software Access

None.

14. Software

15. Data Access

The SSA-OA tethersonde meteorological and ozone data are available from the Earth Observing

System Data and Information System (EOSDIS) Oak Ridge National Laboratory (ORNL) Distributed

Active Archive Center (DAAC).

Page 10
15.1 Contact Information

For BOREAS data and documentation please contact:

ORNL DAAC User Services

Oak Ridge National Laboratory

P.O. Box 2008 MS-6407

Oak Ridge, TN 37831-6407

Phone: (423) 241-3952

Fax: (423) 574-4665

E-mail: ornldaac@ornl.gov or ornl@eos.nasa.gov

15.2 Data Center Identification

Earth Observing System Data and Information System (EOSDIS) Oak Ridge National Laboratory

(ORNL) Distributed Active Archive Center (DAAC) for Biogeochemical Dynamics

http://www-eosdis.ornl.gov/.

15.3 Procedures for Obtaining Data

Users may obtain data directly through the ORNL DAAC online search and order system

[http://www-eosdis.ornl.gov/] and the anonymous FTP site [ftp://www-eosdis.ornl.gov/data/] or by

contacting User Services by electronic mail, telephone, fax, letter, or personal visit using the contact

information in Section 15.1.

15.4 Data Center Status/Plans

The ORNL DAAC is the primary source for BOREAS field measurement, image, GIS, and

hardcopy data products. The BOREAS CD-ROM and data referenced or listed in inventories on the

CD-ROM are available from the ORNL DAAC.

16. Output Products and Availability

16.1 Tape Products

None.

16.2 Film Products

None.

16.3 Other Products

These data are available on the BOREAS CD-ROM series.

17. References

17.1 Platform/Sensor/Instrument/Data Processing Documentation

None.

17.2 Journal Articles and Study Reports

Newcomer, J., D. Landis, S. Conrad, S. Curd, K. Huemmrich, D. Knapp, A. Morrell, J. Nickeson,

A. Papagno, D. Rinker, R. Strub, T. Twine, F. Hall, and P. Sellers, eds. 2000. Collected Data of The

Boreal Ecosystem-Atmosphere Study. NASA. CD-ROM.

Sellers, P. and F. Hall. 1994. Boreal Ecosystem-Atmosphere Study: Experiment Plan. Version

1994-3.0, NASA BOREAS Report (EXPLAN 94).

Page 11
Sellers,P.andF.Hall. 1996.BorealEcosystem-AtmosphereStudy:ExperimentPlan.Version

1996-2.0,NASA BOREASReport(EXPLAN 96).

Sellers,P.,F. Hall, andK.F. Huemmrich.1996.BorealEcosystem-AtmosphereStudy:1994

Operations.NASA BOREASReport(OPSDOC94).

Sellers,P.,F. Hall, andK.F. Huemmrich.1997.BorealEcosystem-AtmosphereStudy:1996

Operations.NASA BOREASReport(OPSDOC96).

Sellers,P.,F. Hall, H. Margolis,B. Kelly, D. Baldocchi,G. denHartog,J.Cihlar, M.G. Ryan,B.

Goodison,P.Crill, K.J.RansomD. Lettenmaier,andD.E. Wickland. 1995.Theboreal

ecosystem-atmospherestudy(BOREAS):anoverviewandearlyresultsfrom the1994field year.

Bulletinof theAmericanMeteorologicalSociety.76(9):1549-1577.

Sellers,P.J.,F.G.Hall, R.D.Kelly, A. Black, D. Baldocchi,J. Berry, M. Ryan,K.J. Ranson,P.M.

Crill, D.P.Lettenmaier,H. Margolis,J.Cihlar, J.Newcomer,D. Fitzjarrald,P.G.Jarvis,S.T.

Gower,D. Halliwell, D. Williams, B. Goodison,D.E.Wickland, andF.E.Guertin.1997.BOREAS

in 1997:ExperimentOverview,ScientificResultsandFutureDirections.Journalof Geophysical

Research102(D24):28,731-28,770.

17.3 Arehive/DBMS Usage Documentation

None.

None.

18. Glossary of Terms

AES

AFM

AIR

ASCII

BOREAS

BORIS

CD-ROM

DAAC

EOS

EOSDIS

GIS

GMT

GSFC

HTML

IFC

NAD83

NASA

NSA

OA

ORNL

PANP

SSA

TF

URL

19. List of Acronyms

- Atmospheric Environment Service

- Aircraft Flux and Meteorology

- Atmospheric Instrumentation Research

- American Standard Code for Information

- BOReal Ecosystem-Atmosphere Study

- BOREAS Information System

- Compact Disk-Read-Only Memory

- Distributed Active Archive Center

- Earth Observing System

- EOS Data and Information System

- Geographic Information System

- Greenwich Mean Time

- Goddard Space Flight Center

- HyperText Markup Language

- Intensive Field Campaign

- North American Datum of 1983

- National Aeronautics and Space

- Northern Study Area

- Old Aspen

- Oak Ridge National Laboratory

- Prince Albert National Park

- Southern Study Area

- Tower Flux

- Uniform Resource Locator

Interchange

Administration

Page 12
20.

20.1 Document Revision Date

Written: 26-May- 1999

Revised: 08-Oct- 1999

20.2 Document Review Date(s)

BORIS Review: 18-Aug- 1999

Science Review:

20.3 Document ID

Document Information

20.4 Citation

When using these data, please include the following acknowledgment as well as citations of

relevant papers in Section 17.2:

Data were collected and processed by Robert E. Mickle and A. James Arnold of the Atmospheric

Environment Service.

If using data from the BOREAS CD-ROM series, also reference the data as:

Mickle, R.E., A.J. Arnold, and G. den-Hartog, "AES Flux Tower Measurements for BOREAS:

Exchange of Energy, Water Vapor, and Trace Gases Project." In Collected Data of The Boreal

Ecosystem-Atmosphere Study. Eds. J. Newcomer, D. Landis, S. Conrad, S. Curd, K. Huemmrich,

D. Knapp, A. Morrell, J. Nickeson, A. Papagno, D. Rinker, R. Strub, T. Twine, F. Hall, and P.

Sellers. CD-ROM. NASA, 2000.

Also, cite the BOREAS CD-ROM set as:

Newcomer, J., D. Landis, S. Conrad, S. Curd, K. Huemmrich, D. Knapp, A. Morrell, J.

Nickeson, A. Papagno, D. Rinker, R. Strub, T. Twine, F. Hall, and P. Sellers, eds. Collected Data of

The Boreal Ecosystem-Atmosphere Study. NASA. CD-ROM. NASA, 2000.

20.5 Document Curator

20.6 Document URL

Page 13
REPORT DOCUMENTATION PAGE FormApproved

OMB No. 0704-0188

Public reporting burden for this collection of informationis estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources,

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1. AGENCY USE ONLY (Leave blank) 2. REPORT DATE 3. REPORT TYPE AND DATES COVERED

October 2000 Technical Memorandum

4. TITLE AND SUBTITLE

Technical Report Series on the Boreal Ecosystem-Atmosphere Study (BOREAS)

BOREAS TF-2 SSA-OA Tethersonde Meteorological and Ozone Data

6. AUTHOR(S)

A. James Arnold and Robert E. Mickle

Forrest G. Hall and Karl Huemmrich, Editors

7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS (ES)

Goddard Space Flight Center

Greenbelt, Maryland 20771

9. SPONSORING / MONITORING AGENCY NAME(S) AND ADDRESS (ES)

National Aeronautics and Space Administration

Washington, DC 20546-0001

5. FUNDING NUMBERS

923

RTOP: 923-462-33-01

8. PEFORMING ORGANIZATION

REPORT NUMBER

2000-03136-0

10. SPONSORING / MONITORING

AGENCY REPORT NUMBER

TM--2000-209891

Vo1.194

11. SUPPLEMENTARY NOTES

A.J. Arnold and R.E. Mickle: Atmospheric Environment Service, Downsview, Ontario;

K. Huemmrich, University of Maryland, NASA Goddard Space Flight Center, Greenbelt, Maryland

12a. DISTRIBUTION / AVAILABILITY STATEMENT

Unclassifie_Unlimited

Subject Category: 43

Report available from the NASA Center for AeroSpace Information,

7121 Standard Drive, Hanover, MD 21076-1320. (301) 621-0390.

12b. DISTRIBUTION CODE

13. ABSTRACT (Maximum 200 words)

The BOREAS TF-2 team collected meteorological and ozone measurements from instruments

mounted below a tethered balloon. These data were collected at the SSA-OA site to extend meteorological and ozone measurements made from the flux tower to heights of 300 m. The tethersonde

operated during the fall of 1993 and the spring, summer, and fall of 1994. The data are available in

tabular ASCII files.

14. SUBJECT TERMS

BOREAS, tower flux.

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Unclassified

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Unclassified

19. SECURITY CLASSIFICATION

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Unclassified

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13

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