期刊名称：Journal of Environmental Hydrology (ältere Jahrgänge)
印刷版ISSN：1058-3912
电子版ISSN：1996-7918
出版年度：2009
卷号：17
出版社：IAEH
摘要：This paper describes the methodology used for estimating the latent heat flux (LE) by means of the energy balance equation and using data from Landsat EMT+ images. The aim of the application is to assess the LE distribution in an agricultural region located in the center of Buenos Aires Province, Argentina. The methodology made use of two images captured in November and December 2001, which correspond to the period of greatest demand in terms of evaporation and transpiration. The results from the image processing are quite consistent as compared to a local-scale Penman-Monteith model. Moreover, the maps obtained show variations of up to 3 mm/day among neighboring plots, a fact that is not detected by the local-scale model.
