Estimating Crop Coefficients Using Remote Sensing-Based Vegetation Index
نویسندگان
چکیده
منابع مشابه
Estimating Crop Coefficients Using Remote Sensing-Based Vegetation Index
Crop coefficient (Kc)-based estimation of crop evapotranspiration is one of the most commonly used methods for irrigation water management. However, uncertainties of the generalized dual crop coefficient (Kc) method of the Food and Agricultural Organization of the United Nations Irrigation and Drainage Paper No. 56 can contribute to crop evapotranspiration estimates that are substantially diffe...
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Crop coefficients are a widely used and universally accepted method for estimating the crop evapotranspiration (ETc) component in irrigation scheduling programs. However, uncertainties of generalized basal crop coefficient (Kcb) curves can contribute to ETc estimates that are substantially different from actual ETc. Limited research with corn has shown improvements to irrigation scheduling due ...
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Unlike traditional ground-based methodology, remote sensing allows for the rapid estimation of crop residue cover (fR). While the Cellulose Absorption Index (CAI) is ideal for fR estimation, a new index, the Shortwave Infrared Normalized Difference Residue Index (SINDRI), utilizing ASTER bands 6 and 7, is proposed for future multispectral sensors and would be less costly to implement. SINDRI pe...
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T e crop water stress index (CWSI), developed at the USDA-ARS [LS. Water Conservation Laboratory, Phoenix, Arizona, is a commonly used index for detection of plant stress based on the difference between foliage and air temperature. Application of CWSI at local and refzional scales has been hampered by the difficulty of measuring foliage temperature of partially vegetated fields. Most hand-held,...
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SUMMARY Here we report a method for estimating ecosystem respiration (R e) by exclusive use of remotely sensed land surface temperature (T r) from NASA's moderate resolution imaging spectroradiometer (MODIS) sensors. A combination of daytime and nighttime MODIS T r data was used to model an 8-day mean value of land surface temperature (T r(mean)), which was then used in a modified Arrhenius-bas...
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ژورنال
عنوان ژورنال: Remote Sensing
سال: 2013
ISSN: 2072-4292
DOI: 10.3390/rs5041588