Global ETD Search

11	Measuring Snow Cover from ERTS Imagery on the Black River Basin Aul, Jerry S., Ffolliott, Peter F. 12 April 1975 (has links) From the Proceedings of the 1975 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 11-12, 1975, Tempe, Arizona / The possibility of using imagery from the earth resources technology satellites (ERTS) to monitor changes in areal snow cover in east-central Arizona is examined. Four methods were used in the interpretation of areal snow cover from the ERTS imagery, the densitometer, dot grid, squares grid and projection-planimeter methods providing results of 69, 71, 72 and 74 percent of areal cover respectively. No one method for interpretation of ERTS imagery should be ruled unusable, but any use made of ERTS imagery is dependent upon turn-around time for obtaining the imagery, as snow cover information which cannot be obtained within 24 hours is limited in practical application. Hydrology -- Arizona. Water resources development -- Arizona. Hydrology -- Southwestern states. Snowpacks Snow surveys Snow management Arizona Snow cover Remote sensing Aerial reconnaissance Satellites (artificial) Mapping Black River Basin (Ariz)