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Estimating local sugarcane evapotranspiration using Landsat TM image and a VITT concept

International Journal of Remote Sensing 18(2): 453-459

Estimating local sugarcane evapotranspiration using Landsat TM image and a VITT concept

This letter presents an approach for local evapotransition (ET) estimation using Landsat Thematic Mapper (TM) data for sugarcane fields based on the concept of a vegetation Index/Temperature Trapezoid (VITT). A moisture availability index (M-a) and, subsequently, the ET rate were computed using surface temperature (T-s) and Normalized Difference Vegetation Index (NDVI) derived from the TM data. The remote sensing estimates were compared with results from a water balance model. This study shows that Landsat TM data, along with the VITT concept, can provide a practical means for the ET estimation of the sugarcane field at a local scale.

Accession: 002831380

DOI: 10.1080/014311697219196

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