准确估算参考蒸散发量对水资源管理、区域水资源利用规划和社会经济可持续发展研究至关重要,同时也是农业灌溉管理的依据.本研究的主要目的是评价美国地质调查局(USGS)利用美国国家海洋大气管理局(NOAA)提供的气象参数计算得到全球参考蒸散(GDAS)数据的可靠性.以2004～2007年山西省境内16个站点的中国地面国际交换站气候资料计算出的ET0为依据,通过对GDAS数据和中国地面国际交换站地面观测数据进行不同尺度上的统计分析,发现二者的计算结果非常一致.说明GDAS提供的ET0数据是可靠的,在大尺度水资源管理方面有很好的应用前景,可用于全球范围干旱监控的水文模型研究.%Potential Evapotranspiration plays a practical role in water resources management and regional water resources planning and economic development.The objective of this study is to evaluate the potential utility of USGS Global Data Assimilation System (GDAS) reference Evapotranspiration (ET0) products in regional water resources applications by comparing it with Chinese international exchange of ground stations climate data over a four year period (2004 ～ 2007)in Shanxi Province. It showed a close match between the two independent ET0 products. The temporal and spatial correspondences in trend between independent datasets were good. It demonstrates the reliability and potentiality of using GDAS reference ET for regional energy balance and water resources management in many parts of the world. GDAS ET0 products have high potential to be used in global drought monitor Hydrological Model.
展开▼
