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Regional evaporation estimates in the eastern monsoon region of C hina: Assessment of a nonlinear formulation of the complementary principle
Author(s) -
Liu Xiaomang,
Liu Changming,
Brutsaert Wilfried
Publication year - 2016
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1002/2016wr019340
Subject(s) - nonlinear system , evaporation , monsoon , arid , water balance , environmental science , aridity index , balance (ability) , climatology , mathematics , meteorology , precipitation , geography , physics , geology , geotechnical engineering , paleontology , quantum mechanics , medicine , physical medicine and rehabilitation
The performance of a nonlinear formulation of the complementary principle for evaporation estimation was investigated in 241 catchments with different climate conditions in the eastern monsoon region of China. Evaporation (E a) calculated by the water balance equation was used as the reference.E aestimated by the calibrated nonlinear formulation was generally in good agreement with the water balance results, especially in relatively dry catchments. The single parameter in the nonlinear formulation, namelyα eas a weak analog of the alpha parameter of Priestley and Taylor ([Priestley, C. H. B., 1972]), tended to exhibit larger values in warmer and humid near‐coastal areas, but smaller values in colder, drier environments inland, with a significant dependency on the aridity index ( AI ). The nonlinear formulation combined with the equation relating the one parameter and AI provides a promising method to estimate regionalE awith standard and routinely measured meteorological data.