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                              Applicationsofremotesensingretrievalofevapotranspirationin
                                          irrigationwatermanagement:areview
                                                                                       1,2,3
                                                                       1,2,3
                                                       1,2,3
                              ZHANGCaijin 1,2,3 ,LONGDi ,CUIYingjie       ,CUIYanhong     ,
                                                                        1,2,3
                                                          4
                                              BAILiangliang,DONGLiang
                          (1.StateKeyLaboratoryofHydroscienceandEngineering,TsinghuaUniversity,Beijing 100084,China;
                     2.KeyLaboratoryofHydrosphereSciencesoftheMinistryofWaterResources,TsinghuaUniversity,Beijing 100084,China;
                                3.DepartmentofHydraulicEngineering,TsinghuaUniversity,Beijing 100084,China;
                       4.ScienceandTechnologyAdvisoryCenterofHaiheRiverWaterConservancyCommission,MinistryofWaterResources,
                                                    Tianjin 300170,China)


                  Abstract:High - efficientusageofirrigationwaterresourcesisessentialtoensureagriculturalproductionandsus
                  tainableutilizationofwaterresources.Climatewarmingandrapidsocio - economicdevelopmentposegreatchallen
                  gestothesustainableuseofirrigationwaterresources.Currentagriculturalproductiontendstobemoreintensive ,
                  standardizedandinformationized,resultinginhigherrequirementsforthedevelopmentofefficientwater - savingir
                  rigationandtherealizationofprecisionmanagementofirrigationwateruse.Evapotranspirationcanreflecttheex
                  changesofwaterandenergybetweenthesurfaceandtheatmosphereandwaterconsumptionbycrops ,thusplaying
                  akeyroleinirrigationwatermanagement.Overthepasttwodecades ,withthedevelopmentofEarthobservation
                  technologies ,theoriesandmethodsofremotesensingretrievalofevapotranspirationanddatafusionarebecoming
                  mature,resultingincontinuouslyimprovingspatiotemporalresolutionandaccuracyofevapotranspirationestimates.
                  Thistrendhasgreatlymaximizedtheapplicationpotentialofremotelybasedevapotranspirationinthefieldofirriga
                  tionwaterresources.First ,thisreviewsummarizestheadvancesofremotesensingretrievalofevapotranspiration
                  anddatafusionandrelatedwidelyuseddatasets.Applicationsofevapotranspirationinirrigationwaterusemonito
                  ring ,irrigationscheduleoptimization,andevaluationofirrigationbenefitsaresystematicallysummarized.Thisre
                  viewcouldprovidereferenceforefficientutilizationandprecisemanagementofagriculturalwaterresources.
                  Keywords:evapotranspiration;irrigation;irrigationwatermanagement;remotesensing


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