A STUDY TO DEVELOP IMPROVED SPACECRAFT SNOW SURVEY METHODS USING SKYLAB/EREP DATA, DEMONSTRATION OF THE UTILITY OF THE S190 AND S192 DATA

摘要

This interim report provides a demonstration of the utility of spacecraft acquired Skylab S190A and S190B photography and S192 imagery for mapping areal extent of snow cover in wastarn United States test site areas. The data sample is from the SL-2 mission flown in June 1973. The results of the investigation indicate that areal snow cover extent can be mapped more accurately from the S190A and S190B photography than from any other spacecraft system, including ERTS. The results of a qualitative analysis of the S192 imagery indicate considerable potential for the utility of multispectral snow cover analysis;the potential for distinguishing snow from clouds automatically is particularly significant.