Title :
Snow and cloud discrimination factors in the MODIS snow algorithm
Author :
Riggs, George A. ; Hall, Dorothy K.
Author_Institution :
SSAI, Lanham, MD
Abstract :
A modification of the Moderate Resolution Imaging Spectroradiometer (MODIS) snow algorithm to eliminate a problem of erroneous snow mapping in certain cloud situations in the swath level product is described. The purpose of this algorithm modification is to improve the snow algorithm in specific cloud situations where the cloud mask misses clouds that have some reflectance characteristics similar to snow. Including a test for reflectance characteristics among MODIS bands 4, 5 and 6 can effectively discriminate between snow and clouds in those situations
Keywords :
clouds; geophysical signal processing; hydrological techniques; microwave measurement; radiometry; snow; terrain mapping; MODIS snow algorithm; Moderate Resolution Imaging Spectroradiometer; cloud discrimination factors; cloud mask; reflectance characteristics; snow discrimination factors; snow mapping; swath level product; Clouds; Instruments; Lighting; MODIS; NASA; Reflectivity; Remote sensing; Snow; Space vehicles; Testing;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004 IEEE International
Conference_Location :
Anchorage, AK
Print_ISBN :
0-7803-8742-2
DOI :
10.1109/IGARSS.2004.1369928
