TY - CHAP A1 - Shakib Shahidian A2 - Ricardo Serralheiro A3 - João Serrano A4 - José Teixeira A5 - Naim Haie A6 - Francisco Santos ED1 - Ayse Irmak Y1 - 2012-01-18 PY - 2012 T1 - Hargreaves and Other Reduced-Set Methods for Calculating Evapotranspiration N2 - This edition of Evapotranspiration - Remote Sensing and Modeling contains 23 chapters related to the modeling and simulation of evapotranspiration (ET) and remote sensing-based energy balance determination of ET. These areas are at the forefront of technologies that quantify the highly spatial ET from the Earth's surface. The topics describe mechanics of ET simulation from partially vegetated surfaces and stomatal conductance behavior of natural and agricultural ecosystems. Estimation methods that use weather based methods, soil water balance, the Complementary Relationship, the Hargreaves and other temperature-radiation based methods, and Fuzzy-Probabilistic calculations are described. A critical review describes methods used in hydrological models. Applications describe ET patterns in alpine catchments, under water shortage, for irrigated systems, under climate change, and for grasslands and pastures. Remote sensing based approaches include Landsat and MODIS satellite-based energy balance, and the common process models SEBAL, METRIC and S-SEBS. Recommended guidelines for applying operational satellite-based energy balance models and for overcoming common challenges are made. BT - Evapotranspiration SP - Ch. 4 UR - https://doi.org/10.5772/18059 DO - 10.5772/18059 SN - PB - IntechOpen CY - Rijeka Y2 - 2020-01-24 ER -