ASTER observations over New Mexico test sites

TitleASTER observations over New Mexico test sites
Publication TypeConference Paper
Year of Publication2000
AuthorsSchmugge T.J, Chopping M., French A.N., Havstad K, Rango A., Ritchie J, Schieldge J.
Conference NameFall Meeting, American Geophysical Union
Date PublishedDecember 15-19,
Conference LocationSan Francisco, CA
ARIS Log Number117771
KeywordsASTER, miltispectral data, MODIS, observations, satellite
AbstractIn June and September 2000, the Advanced Spaceborne Thermal Emission and Reflection radiometer (ASTER) on the Terra satellite obtained data over several test sites along the Rio Grande river in New Mexico. ASTER has 14 channels from the VNIR through the TIR with 15 m resolution in VNIR and 90 m in the thermal. The multispectral TIR data from ASTER provides the opportunity to separate the temperature and emissivity effects observed in the thermal emission from the land surface. The sites include the Sevilleta and Bosque del Apache National Wildlife Refuges, the Elephant Butte reservoir and the Jornada Experimental Range. Ground measurements during these overflights included surface temperature, vegetation type and condition and surface flux measurements. There was also an aircraft flight with the MODIS/ASTER simulator on June 14, 2000, unfortunately not coincident with a satellite overpass. Preliminary results indicate good agreement between ASTER brightness temperatures and ground measures at the reservoir. Analysis of earlier aircraft data have show that the multispectral TIR data are very effective for estimating both the surface temperature and emissivity. These results will be compared with the ASTER data.