Mathematics – Logic
Scientific paper
Jul 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008georl..3513401h&link_type=abstract
Geophysical Research Letters, Volume 35, Issue 13, CiteID L13401
Mathematics
Logic
3
Planetary Sciences: Solid Surface Planets: Surface Materials And Properties, Atmospheric Processes: Boundary Layer Processes, Global Change: Land Cover Change, Global Change: Solid Earth (1225)
Scientific paper
Land surface temperature and emissivity (LST&E) are essential parameters for a wide range of studies undertaken at a variety of spatial scales. LST&E products are generated by a number of spaceborne sensors such as ASTER, MODIS, and AIRS at varying spatial, spectral and temporal resolutions. We have developed an approach for producing gridded, mean, seasonal ASTER LST&E Datasets at a spatial resolution of 100 m at nadir. This paper shows a mean wintertime and summertime emissivity dataset for California and Nevada, USA using all available data since mission launch (2000). Comparison of the two seasonal datasets indicates the greatest variability occurs in areas affected by snow such as the Sierra Nevada Mountains, and in agricultural regions. Comparisons of the new emissivity dataset with laboratory measurements of geologic samples show emissivity differences of less than 0.5%, while 1-3% differences were found for water and vegetation using spectra from the MODIS UCSB library.
Baldridge Alice M.
Hook Simon J.
Hulley G. C.
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