HR: 17:30h
AN: H34D-07    [Abstracts]
TI: MAPPING EVAPOTRANSPIRATION IN ARID RIPARIAN AREAS OF THE SOUTHWESTERN UNITED STATES USING OPTICAL REMOTELY SENSED IMAGERY
AU: * Hendrickx, J M
EM: hendrick@nmt.edu
AF: New Mexico Tech, 801 Leroy place, Socorro, NM 87801 United States
AU: Hong, S
EM: hong@nmt.edu
AF: New Mexico Tech, 801 Leroy place, Socorro, NM 87801 United States
AU: Allen, R
EM: RALLEN@kimberly.uidaho.edu
AF: University of Idaho, 3793 North 3600 East, Kimberly, ID 83341 United States
AU: Bastiaanssen, W G
EM: w.bastiaanssen@waterwatch.nl
AF: WaterWatch, Generaal Foulkesweg 28, Wageningen, 6703 Netherlands
AB: Accurate information on the distribution of evapotranspiration in arid riparian areas is needed for sustainable management of water resources as well as for a better understanding of water exchange processes between the land surface and the atmosphere. Since evapotranspiration is subject to rapid changes in time and space, it is nearly impossible to determine its spatial and temporal distributions over larger areas from ground measurements alone. Therefore, prediction from remote sensing data is very attractive as it enables large area coverage and a high repetition rate. In this study, the Surface Energy Balance Algorithms for Land (SEBAL) was selected to estimate evapotranspiration in the riparian areas of the Middle Rio Grande Basin (New Mexico), San Pedro River (Arizona) and Owens Valley (California). The objective is to compare SEBAL evapotranspiration rates derived from LandSat TM images with those measured on the ground with eddy covariance towers.
DE: 1800 HYDROLOGY
DE: 1818 Evapotranspiration
DE: 1836 Hydrologic budget (1655)
DE: 1866 Soil moisture
DE: 1878 Water/energy interactions
SC: Hydrology [H]
MN: 2004 AGU Fall Meeting