摘要
蒸散发是地表—大气系统能量交换的核心过程,在复杂地形条件下选择合适方法对其精确估算是揭示该区域陆气耦合机理的基础和难题。基于红河流域(中国部分)25个站点60年气象资料,以FAO56-Penm-Monteith方法为基准,M-K检验和泰勒图为主要依据,从五个方面评估8种潜在蒸散发估算方法的适用性。结果表明,辐射类方法中的Hargreaves、Priestley-Taylor法适用性最好,估算结果与FAO接近(R^(2)≈0.9),Makkink、Abtew法次之;温度类方法中Linacre法优于McCloud法;质量传输类方法中Rohwer、Penman法较差。研究结果不仅为红河流域(中国部分)提供了高适应性蒸散发估算方法,同时揭示了流域PET时空分布特征。
Evapotranspiration is a key process of energy exchange in the terrestrial-atmospheric system,and the selection of a suitable method for its accurate estimation is the basis and challenges to revealing the energy exchange process and the mechanism of Land-Atmosphere coupling under complex topographic conditions.Based on 60 years of meteorological data from 25 stations in the Red River Basin,China,the FAO56-Penman-Monteith method was used as a benchmark,and the MK statistical tests and Taylor diagrams were used to evaluate 8 potential evapotranspiration(PET)estimation methods from five aspeacts.The results show that the radiative methods Priestley-Taylor and Hargreaves had the best applicability,their results were closest to FAO(R^(2)≈0.9);The temperature methods McCloud and Linacre were followed;The mass transport class methods Rohwer and Penman were worse.This study not only provided a highly adaptive PET estimation method for the Red River Basin,China,but also revealed the spatial and temporal distribution characteristics of the PET.
作者
张继辉
陈俊旭
范云江
童健航
杨馥熔
胡智文
邵毕涛
ZHANG Ji-hui;CHEN Jun-xu;FAN Yun-jiang;TONG Jian-hang;YANG Fu-rong;HU Zhi-wen;SHAO Bi-tao(School of Earth Sciences,Yunnan University,Kunming 650500,China;International Joint Research Center for Karstology,Yunnan University,Kunming 650500,China;PowerChina Kunming Engineering Corporation Limited,Kunming 650000,China;Yunnan Surveying and Mapping Institute,Kunming 650011,China)
出处
《水电能源科学》
北大核心
2023年第7期8-11,79,共5页
Water Resources and Power
基金
云南省基础研究计划项目(2019FB145)
国家自然科学基金项目(42161006,41701039)
中国地质调查局项目(DD20221824)
云南省高层次人才青年拔尖人才专项(WX069051)。
关键词
潜在蒸散发
辐射法
温度法
质量传输法
红河流域
potential evapotranspiration
radiation method
temperature method
mass transport method
Red River Basin
