APPENDIX 1. LIST OF CONTRIBUTORS

Paul B. Allen (Retired)
USDA ARS SPA
National Agricultural Water Quality Laboratory
P.O. Box 1430
Durant, OK 74702
(405) 924-5066

K. J. Allwine
Pacific Northwest Laboratories
Atmospheric Sciences Department
P.O. Box 999
MS K6-11
Richland, WA 99352
(509) 376-8145

D. E. Anderson
U.S. Geological Survey
Water Resources Division Box 25046
Denver, CO 80225
(303) 236 2833

Wilfried Brutsaert
Cornell University
Civil and Environmental Engineering
Hollister Hall
Ithaca, NY 14853
(607) 255 3676

Narinder Chauhan
USRA (Visiting Scientist)
NASA Goddard Space Flight Center
Code 974
Greenbelt, MD 20771
(301) 286 8273

Bhaskar Choudhury
Code 974/NASA
Goddard Space Flight Center
Greenbelt, MD 20771
(301) 286-5155

J. D. Draves,
Hughes STX Corporation
NASA Goddard Space Flight Center
Code 974
Greenbelt, MD 20771
(301) 286-5355

Edwin T. Engman
NASA Goddard Space Flight Center
Code 974
Greenbelt, MD 20771
(301) 286-5355

Otto Filho
University of Waterloo
Civil Engineering Department
Engineering 2
200 University Avenue, Room 3318
Waterloo, ONTARIO N2L 3Gl
(519) 885 1211

D. C. Goodrich
USDA-ARS-PWA
Southwest Watershed Research Center
2000 East Allen Road
Tucson, AZ 85719
(602) 670-6481

A. Griffis
University of Massachusetts
Microwave Remote Sensing Laboratory
Knowles Building
Amherst, MA 01003
(413) 545-2136

G. C, Heathman
USDA-ARS-SPA
National Agricultural Water Quality Laboratory
P.O. Box 1430
Durant, OK 74702
(405) 924 5066

Karl J. Hollenbeck
University of Virginia
Department of Environmental Science
Clark Hall
Charlottesville, VA 22903
(804) 924 3671

K. S. Humes
USDA-ARS-BA
Hydrology Laboratory
Building 007, Room 104, BARC-WEST
Beltsville, MD 20705
(301) 504-7490

Thomas J. Jackson
USDA-ARS, Hydrology Laboratory
Building 007, Room 104, BARC-WEST
Beltsville, MD 20705
(301) 504-7490

Michael F. Jasinski
NASA Goddard Space Flight Center
Hydrological Sciences Branch
Code 974
Greenbelt, MD 20771
(301) 286-7099

T. O. Keefer
USDA-ARS-PWA
Southwest Watershed Research Center
2000 East Allen Road
Tucson, AZ 85719
(602) 670-6481

W. P. Kustas
USDA-ARS-BA
Hydrology Laboratory
Building 007, Room 104, BARC-WEST
Beltsville, MD 20705
(301) 504-7490

David M. Le Vine
NASA Goddard Space Flight Center
Code 974
Greenbelt, MD 20771
(301) 286-8059

James W. Naney (Retired)
USDA-ARS-SPA
National Agricultural Water Quality Laboratory
P.O. Box 1430
Durant, OK 74702
(405) 924 5066

Peggy O'Neill
NASA Goddard Space Flight Center
Code 974
Greenbelt, MD 20771
(301) 286-8273

Yisok Oh
University of Michigan
1301 Beal Avenue
Room #3421, EECS Building
Ann Arbor, Ml 48109
(313) 764 0502

Terry Ridgeway
University of Waterloo
Civil Engineering Department
Engineering 3
200 University Avenue, Room 2141
Waterloo, ONTARIO N2L 3G1
(519) 885-1211

Jerry C. Ritchie
USDA-ARS-BA
Hydrology Laboratory
Building 007, Room 104, BARC-WEST
Beltsville, MD 20705
(301) 504-8717

Doraiswamy P. C. Doraiswamy
USDA-ARS-BA
Remote Sensing Laboratory
Building 001, BARC-WEST
Beltsville, MD 20705
(301) 504-6576

Frank R. Schiebe
USDA-ARS-SPA
National Agricultural Water Quality Laboratory
P.O. Box 1430
Durant, OK 74702
(405) 924-5066

Thomas J. Schmugge
USDA ARS-BA
Hydrology Laboratory
Building 007, Room 104, BARC-WEST
Beltsville, MD 20705
(301) 504-8081

D. I. Stannard
U.S. Geological Survey
Water Resources Division
Box 25046
Denver, CO 80225
(303) 236-2833

Jim Stiles
University of Michigan
1301 Beal Avenue
Room #3421, EECS Building
Ann Arbor, MI 48109
(313) 763-8162

Calvin T. Swift
University of Massachusetts
Microwave Remote Sensing Laboratory
Knowles Building
Amherst, MA 01003
(413) 545-2136

W. L. Teng
Hughes STX Corporation
NASA Goddard Space Flight Center
Code 975
Greenbelt, MD 20771
(301) 286-5239

J. R. Wang
NASA Goddard Space Flight Center
Code 975
Greenbelt, MD 20771
(301) 286 5239

R. D. Williams
USDA-ARS-SPA
National Agricultural Water Quality Laboratory
P.O. Box 1430
Durant, OK 74702
(405) 924-5066

ACKNOWLEDGMENT

The investigators recognize that this experiment would not have been possible without the support and cooperation of many people. Of particular value to its success were the teams associated with the C-130 and DC-8 aircraft operated by NASA Ames Research Center and the USDA National Agricultural Water Quality Laboratory (Durant and Chickasha, OK) who supported the ground data collection. The extensive ground data collection would not have been possible without the cooperation of groups from the USDA Hydrology Lab and Princeton University. We also appreciate and acknowledge the efforts of the U.S. Geological Survey, Water Resources Division, and to the U.S. Department of Energy, Atmospheric Radiation Measurements (ARM) program in the collection of meteorological data.

LIST OF TABLES

Table III-1. Total daily precipitation during the Washita '92 experiment.
Table III-2. Little Washita discharge and solar radiation during the Washita '92 experiment.
Table IV-1. Washita '92 experimental site characteristics.
Table V-1. Sensor deployment at MS001.
Table V-2. Sensor deployment at MS002.
Table V-3. Sensor deployment at MS003.
Table V-4. Sensor deployment at MS004.
Table V-5. Average Bowen ratios between 1130 and 1530 on day of year 170.
Table VI-1. Actual launch times of the soundings (CDST).
Table VIII-1. Washita '92 vegetation summary.
Table IX-1. Performance specifications of laser profilometer system, as used duringWashita '92 testing.
Table IX-2. Compilation of vegetation parameters taken at sites AG006 (wheat) and AG007 (alfalfa).
Table IX-3. Compilation of surface roughness estimates taken at seven sites in the Little Washita Watershed.
Table X-1. Washita '92 field average bulk density data.
Table XII-1. Truck radar data collection schedule.
Table XIII-1. Washita '92 site average 0-5 cm volumetric soil moisture.
Table XIII-2. Washita '92 site averaged soil temperatures.
Table XIII-3. Washita '92 site averaged surface thermal infrared temperatures.
Table XIV-1. Rain gauge sites and days on which profile soil moisture data were collected during the period June 10-18, 1992.
Table XV-1. Soil classification of fields in study area.
Table XV-2. Vegetation cover of fields in study area.
Table XVI-1. List of laser altimeter transect measurement.
Table XVI-2. List of laser transects with starting/ending times.
Table XVI-3. Washita '92 aerial photography coverage.
Table XVII-1. NASA/JPL Airborne Imaging Radar (AIR) parameters.
Table XVII-2. DC-8 SAR flightline log giving direction and start/stop latitude and longitude.

LIST OF FIGURES

Figure II-1. Locations at climatologic and hydrologic instruments and gauges in the watershed.
Figure II-2. SPOT satellite false color composite of the Little Washita Watershed obtained July 3, 1992.
Figure II-3. Little Washita Watershed land use map derived from MIADS 200 m data base.
Figure II-4. Little Washita Watershed soil texture map derived from MIADS 200 m data base.
Figure III-1. Cumulative precipitation at two rain gages during Washita '92.
Figure IV-1. Washita '92 surface soil moisture sampling sites.
Figure V-1. Bowen-ratio fluxes at MS001 on day of year 170.
Figure V-2. Turbulent fluxes at MS001 on day of year 170.
Figure V-3. Bowen-ratio fluxes at MS002 on day of year 170.
Figure V-4. Turbulent fluxes at MS002 on day of year 170.
Figure V-5. Bowen-ratio fluxes at MS003 on day of year 170.
Figure V-6. Bowen-ratio fluxes at MS004 on day of year 170.
Figure VI-1. Atmospheric wind profile acquired at 0900 on June 15.
Figure VI-2. Atmospheric profiles of potential temperature on June 10.
Figure VI-3. Atmospheric profiles of specific humidity on June 10.
Figure VI-4. Atmospheric profiles of potential temperature on June 12.
Figure VI-5. Atmospheric profiles of specific humidity on June 12.
Figure VII-1. Example of a field map sheet with land cover classes indicated.
Figur VII-2. Typical native rangeland (RN).
Figure VII-3. Typical bare soil area with scattered vegetation (BS).
Figure IX-1. Photo of laser profilometer system including laser, position table, computer, controllers and power supply.
Figure IX-2. Paint and paper profiling technique.
Figure IX-3. Map of the Little Washita Watershed showing the location of the measurement sites.
Figure IX-4. Map showing site PR001 and surrounding area, located at approximately 34 56' latitude, 97 58' longitude.
Figure IX-5. Bare surface of site PR001 showing rough surface characteristics.
Figure IX-6. Estimated correlation function of bare soil surface located at site PR00l.
Figure IX-7. Map showing site AG005 and surrounding area, located at approximately 35 03' latitude, 97 55' longitude.
Figure IX-8. Bare surface of site AG005 showing rough surface characteristics.
Figure IX-9. Estimated correlation function of bare soil surface located at site AG005.
Figure IX-10. Map showing sites AG001, AG002 and surrounding area, located at approximately 35 00' latitude, 97 52' longitude.
Figure IX-11. Estimated correlation function of bare soil surface located at site AG002.
Figure IX-12. Profilometer system operating in the corn field of site AG001 .
Figure IX-13. Estimated correiation function of soil surface located at site AG001.
Figure IX-14. Map showing sites AG006 and AG007, located at approximately 34 58' latitude, 97 54' longitude.
Figure IX-15. Wheat vegetation of site AG006.
Figure IX-16. Estimated correlation function of soil surface located at site AG006.
Figure IX-17. Alfalfa vegetation of site AG007.
Figure IX-18. Estimated correlation function at soil surface located at site AG007.
Figure IX-19. Map showing sites MS001 and surrounding area, located at approximately 34 54' latitude, 98 15' longitude.
Figure IX-20. Vegetation of rangeland site MS001.
Figure IX-21. Estimated correlation function of soil surface located at site MS001.
Figure IX-22. Vertical profile of vegetation at site MS001 as determined by the laser profilometer.
Figure IX-23. Map showing sites MS004 and surrounding area, located at approximately 34 58' latitude, 97 54' longitude.
Figure IX-24. Vegetation of rangeland site MS004.
Figure IX-25. Vertical profile of vegetation at site MS004 as determined by the laser profilometer.
Figure IX-26. Map showing sites MS002 and surrounding area, located at approximately 34 58' latitude, 97 54' longitude.
Figure IX-27. Vegetation of rangeland site MS002.
Figure IX-28. Vertical profile of vegetation at site MS002 as determined by the laser profilometer.
Figure XI-1. Radiometric surface temperature averaged over the yoke traverse area near MS003 on June 18, 1992 (DOY 170).
Figure XII-1. GSFC truck-based radar at corn site AG031.
Figure XII-2. Truck radar data at 1.6 GHz vertical polarization as a function of incidence angle for two days at corn site AG031.
Figure XIII-1. Average 0-5 cm soil moisture at the met sites during Washita '92.
Figure XIII-2. Average 0-5 cm soil moisture at sites located on low altitude line 1 during Washita '92.
Figure XIV-1. Soil depth vs. moisture content at site RG111 .
Figure XIV-2. Soil moisture data at selected depths for site RG136.
Figure XIV-3. Soil moisture data at selected depths for site RG136.
Figure XV-1. Map showing locations of transect sites.
Figure XV-2. Average sample gravimetric soil moisture of each field.
Figure XV-3. Gravimetric soil moisture for Transact Field 1; a) Transact 1, b) Transact 2.
Figure XV-4. Gravimetric soil moisture for Transact Field 2; a) Transact 3, b) Transact 4.
Figure XV-5. Gravimetric soil moisture for Transact Field 3; a) Transect 5, b) Transact 6.
Figure XV-6. Gravimetric soil moisture for Transact Field 5; a) Transect 9, b) Transact 10.
Figure XV-7. Gravimetric soil moisture for Transact Field 8; a) Transact 15, b) Transact 16.
Figure XVI-1. Washita '92 C-130 flightlines.
Figure XVI-2. Locations of water quality study flightlines showing NS001 and TMS coverage on June 13, 1992.
Figure XVI-3. Brightness temperature images for the ESTAR study area of Washita '92; A) June 10, 1992, and B) June 18, 1992.
Figure XVI-4. Aircraft NS001 and TIMS data obtained over low line 3 at 1000 m on June 18, 1992.
Figure XVI-5. TMS response functions using calibration in effect on June 10, 1992.
Figure XVI-6. Laser altimeter data from site MS001 .
Figure XVI-7. Laser altimeter data from site AG002.
Figure XVI-8. Laser altimeter data from site AG001.
Figure XVII-1. SAR Washita '92 flightlines.