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.
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.
[1] 朱金峰,王乃昂,陈红宝,等.基于遥感的巴丹吉林沙漠范围与面积分析[J].地理科学进展,2010,29(9):1087-1094.
[2] Yang X P,Ma N N,Dong J F,et al.Recharge to the inter-dune lakes and Holocene climate changes in the Badain Jaran Desert,western China[J].Quaternary Research,2010:10-19.
[3] 朱震达,吴正,刘恕,等.中国沙漠概论[M].北京:科学出版社,1980:73-76.
[4] 陈建生,赵霞,盛雪芬,等.巴丹吉林沙漠湖泊群与沙山形成机理研究[J].科学通报,2006,23(51):2789-2796.
[5] 丁宏伟,王贵玲.巴丹吉林沙漠湖泊形成的机理分析[J].干旱区研究,2007,24(1):1-7.
[6] 郭永海,王海龙,董建楠,等.关于巴丹吉林沙漠湖泊形成机制的初步看法[J].地球科学-中国地质大学学报,2012,37(2):276-282.
[7] 洪嘉琏,付国斌,郭早南.山东南四湖水面蒸发实验研究[J].地理研究,1996,15(3):42-49.
[8] 孙夏利,费良军,李学军.我国水面蒸发研究与进展[J].水资源与水工程学报,2009,20(4):17-22.
[9] Su Z B.The Surface Energy Balance System (SEBS) for estimation of turbulent heat fluxes[J].Hydrology and Earth System Sciences,2002,6(1):85-89.
[10] 何延波,Su Z B,Li J,等.SEBS模型在黄淮海地区地表能量通量估算中的应用[J].高原气象,2006,25(6):1092-1100.
[11] 周剑,程国栋,李新,等.应用遥感技术反演流域尺度的蒸散发[J].水利学报,2009,40(6):679-687.
[12] Ma W Q,Mohsin H,Umair R,et al.Retroeved actual ET using SEBS model from Landsat——5 TM data for irrigation area of Australia[J].Atmospheric Environment,2012,(59):408-414.
[13] 王乃昂,马宁,陈宝红,等.巴丹吉林沙漠腹地降水特征的初步分析[J].水科学进展,2013,24(2):153-160.
[14] 金晓媚,万力,Su Z B.遥感与区域地面蒸散量估算方法[M].北京:地质出版社,2008:62-69.
[15] Water R,R Allen,M Tasumi,et al.SEBAL (Surface Energy Balance Algorithms for Land):Advanced Training and Users Manual[Z].Idaho implementation,version1.0,2002,25.
[16] 苏中波,文军,万力.基于NOAA/AVHRR数据的地表物理参数和实际蒸散反演方法研究[J]吉林大学学报(地球科学版),2003,33(增):106-118.
[17] 覃志豪,Zhang M H,Arnon K,等.用陆地卫星TM6数据演算地表温度的单窗算法[J].地理学报,2001,56(4):456-466.
[18] Liang S L.Narrowband to broadband conversions of land surface albedoⅠalgorithm[J].Remote Sensing of Environment,2000,76:213-238.
[19] 施成熙,牛克源.水面蒸发器折算系数研究[J].地理科学,1986,6(4):305-313.
甘公网安备 62010202000688号