Estimating and validating basin-scale actual evapotranspiration using MODIS images and hydrologic models
نویسندگان
چکیده
منابع مشابه
Estimating Riparian and Agricultural Actual Evapotranspiration by Reference Evapotranspiration and MODIS Enhanced Vegetation Index
Dryland river basins frequently support both irrigated agriculture and riparian vegetation and remote sensing methods are needed to monitor water use by both crops and natural vegetation in irrigation districts. We developed an algorithm for estimating actual evapotranspiration (ETa) based on the Enhanced Vegetation Index (EVI) from the Moderate Resolution Imaging Spectrometer (MODIS) sensor on...
متن کاملEvapotranspiration from Landsat and Modis Images
The author is Vivek Sharma, ASABE Member, graduate research Assistant, Department of Biological Systems 1 Engineering, University of Nebraska-Lincoln, Nebraska, USA. Corresponding author: Vivek Sharma, 158. 2 L.W. Chase Hall, University of Nebraska-Lincoln, NE 68583-0726; phone: 402-419-1687; e-mail: 3 [email protected] 4 5 Abstract: Remote sensing-derived surface energy fluxes enable qu...
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Introduction: As the most important element in the hydrologic cycle which depends on climate variables such as near-ground wind speed, air temperature, solar radiation, and relative humidity, reference evapotranspiration (ET0) is normally computed through a variety of methods, each of which requires different and in some cases extensive data that are unavailable in many circumstances, especial...
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Evapotranspiration is a reliable indicator of wetland health. Wetlands are an important and valuable ecosystem on the South Florida landscape. Accurate wetland Actual Evapotranspiration (AET) data can be used to evaluate the performance of South Florida’s Everglades restoration programs. However, reliable AET measurements rely on scattered point measurements restricting applications over a larg...
متن کاملMultidecadal Trend of Basin-Scale Evapotranspiration Estimated Using AVHRR Data in the Krishna River Basin, India
Evapotranspiration (ET) is one of the most critical components of terrestrial water balance. Estimating reliable ET across a large region is, however, difficult due to the limited number of ground monitoring stations and the heterogeneous land surface conditions. In this work, spatially distributed monthly ET estimates in the Krishna River Basin, India, were derived using Advanced Very High Res...
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ژورنال
عنوان ژورنال: Hydrology Research
سال: 2012
ISSN: 0029-1277,2224-7955
DOI: 10.2166/nh.2011.129