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LAKE EVAPORATION STUDIES USING SATELLITE THERMAL INFRARED DATA 1
Author(s) -
Miller Woodruff,
Rango AIbert
Publication year - 1985
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1985.tb00198.x
Subject(s) - evaporation , infrared , satellite , environmental science , atmospheric sciences , thermal , thermal infrared , pan evaporation , potential evaporation , meteorology , hydrology (agriculture) , geology , physics , optics , geotechnical engineering , astronomy
Thermal infrared radiation data were acquired by the Heat Capacity Mapping Mission (HCMM) satellite over the surface area (385 km 2 ) of Utah Lake during periodic overpasses in 1978 and 1979. The thermal infrared data were converted to lake surface temperatures which were subsequently used in correlations with lake evaporation. Correlations between HCMM surface temperature and pan‐derived evaporation exceeded r = 0.90 when HCMM night and day/night average temperatures and two‐day average evaporation values were tested. Similar regression studies were done using monthly data from a conceptual evaporation model and the evaporation pan versus monthly HCMM temperature data. In this test both the HCMM day and night monthly temperature versus the monthly model or pan evaporation had correlations exceeding r = 0.95. Empirical estimates of both short and long term lake evaporation using satellite thermal infrared data seem feasible. Attempts to use the HCMM thermal information as direct input to a theoretical approach to calculating evaporation were inconclusive; however, a definite potential seems to exist.