水资源与水工程学报2012，Vol.23Issue(5)：115-118,122,5.
基于SEBS模型的老哈河流域蒸散发研究
Evapotranspiration estimation in Laohahe Basin based on SEBS model
摘要
Abstract
In this study, the ET in semi - arid Laohahe Basin was estimated based on the surface energy balance system (SEBS) model and NOAA/AVHRR data. The estimated results were then compared with the reference crop evapotranspiration computed combining the FAO - Penman model and crop coefficients. The relationship between the ET and the land cover, Normalized Difference Vegetation Index (NDVI) and Land Surface Temperature (LST) were comprehensively analyzed. The results show that the SEBS model has a good estimation of the ET for the Laohahe Basin. The ET shows a significant temporal and spatial variability. It gets higher values in July and August, and it demonstrates a descending trend in September and October, The ET is much larger in western mountains area than that in middle and eastern plain area. Different kind land covers have different ET values, in which the forest is the largest, and then in turns are cultivated land, thickets and grass. There exist a positive linear correlation between the ET and the NDVI, and a negative linear correlation between the ET and the LST.关键词
蒸散发/SEBS模型/土地利用/植被指数/地表温度/老哈河流域Key words
evapotranspiration/ SEBS model/ land use/ NDVI/ LST/ Laohahe Basin分类
农业科技引用本文复制引用
宋文献,江善虎,杨春生,王立明..基于SEBS模型的老哈河流域蒸散发研究[J].水资源与水工程学报,2012,23(5):115-118,122,5.基金项目
水利部公益性行业科研专项(201101018) （201101018）
水文水资源与水利工程科学国家重点实验室学术创新团队项目(2009585412) （2009585412）
中央高校基本科研业务费专项(2011B01914)资助 （2011B01914）
