Spatial Resolution and Radiance Mix

Spatial Resolution and Radiance MixingAlthough the validation sites appear to be homogeneous from the standpoint of the MODIS LSTdata, analysis of zero curtains elsewhere will encounter more complex surfaces and in any case there may be seasonal patches of snow unresolved by MODIS. ASTER, at 90 m pixel−1, will produce more unmixed (“pure”) pixels in complex terrain, and thus will produce more pixels in which reliable assessments of the zero curtain can be made (Figure 10). Small seasonal snow patches provide one example, important in this study, of temperature mixing that may be reduced with improved