以改进SEBS模型估算苏木吉林南湖的水面蒸发

doi:10.7522/j.issn.1000-694X.2013.00422

摘要/Abstract

摘要： 基于TM/ETM+数据,利用地表能量平衡原理,结合改进了温度算法和地表宽波反照率算法的SEBS模型,对巴丹吉林沙漠东南部苏木吉林南湖2000-2013年的湖面蒸发进行了反演.利用安装在湖面的E601型蒸发皿实测数据对反演结果进行验证,通过相关性分析发现,利用阿拉善右旗气象数据结合SEBS模型计算的湖面蒸发值与蒸发皿实测值相关性较好,R²>0.95,两者的均方根误差RMSE为0.313 mm,平均绝对百分比误差MAPE为8.17%.给出了折算方程,折算系数为0.621,并算得2000-2013年苏木吉林南湖湖面年平均蒸发量为1 287.544 mm.苏木吉林南湖湖面蒸发与气温相关性最好,日照时数次之,与风速的相关性最弱.

关键词: 水面蒸发, SEBS模型, TM/ETM+数据, 气象因素, 巴丹吉林沙漠

Abstract: Based on modified Surface Energy Balance System, the evaporation from 2000 to 2013 of the Sumu Jaran South Lake, in the southeast of the Badain Jaran Desert, was estimated using TM/ETM+ data. The result was validated by the E601 pan observation evaporation in the lake. It indicated that SEBS result was strongly correlated with pan observation and R² is more than 0.95 (RMSE=0.313 mm, MAPE=8.17%). A conversion equation was set with a conversion coefficient of 0.621. Based on the equation, the annual evaporation of the lake is 1 287.544 mm. The correlations between evaporation and meteorological factors were also discussed in this paper. Temperature and sunshine hours were strongly correlated with evaporation, while wind speed had the least correlation with evaporation.

Key words: evaporation, modified SEBS model, TM/ETM+ data, meteorological factors, Sumu Jaran South lake, Badain Jaran Desert

中图分类号:

P332.2

柯珂, 金晓媚, 高萌萌, 巩朋. 以改进SEBS模型估算苏木吉林南湖的水面蒸发[J]. 中国沙漠, 2015, 35(1): 233-239.

Ke Ke, Jin Xiaomei, Gao Mengmeng, Gong Peng. Evaporation Estimation of the Sumu Jaran South Lake in the Badain Jaran Desert Based on Modified SEBS Model[J]. JOURNAL OF DESERT RESEARCH, 2015, 35(1): 233-239.

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