基于地表能量平衡的大尺度流域蒸散发遥感估算研究
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摘要
蒸散发是地表能量平衡的关键环节,准确估计流域蒸散发对水资源管理、作物估产、以及环境保护等具有重要意义。研究结合中国中高纬度区域气候特征、土地利用类型以及植被动态特征,改进了基于地表能量平衡系统(Surface Energy Balance System,SEBS)的蒸散发估算模型。以松花江流域为例,进行大尺度流域的多年蒸散发反演。通过多年流域水量平衡、流域内生态观测实验以及全球通量观测网络评价数据验证模型估算精度,同时借助陆面过程模型和NASA的MOD16蒸散发产品进行交叉验证,评估模型模拟精度。结果表明,改进的SEBS模型在全国范围内精度并不统一,但在松花江、辽河流域估算精度较高,因此基于地表能量平衡的蒸散发估算模型是一种估算我国中高纬度区域蒸散发的可行方法。松花江流域时空变化研究发现,流域多年蒸散发总值变化不大,但存在空间上的变异性。
Evapotranspiration(ET)is the key link between land surface energy balance and water movement.Accurate estimation of ET on basin scale is of great significance to climate change studies,water resources management,crop yield estimation and environmental protection.Combining the climate characteristics,land use types and vegetation dynamics in the middle and high latitudes of China,an ET estimation model was proposed based on Surface Energy Balance System(SEBS)..The model was then applied to the Songhua River basin to estimate ET.The estimation accuracy of the model was validated by the water balance and ecological observations in the basin,and MTE data of global flux observation network.The simulation accuracy of the model was also evaluated by cross-validation of a land surface process model and NASA MOD16 ET.The results show that the improved SEBS model has a high accuracy in estimating the ET in Songhua River and Liaohe River basins in China,but the accuracy is not uniform in the whole country;The model is a reasonable method for estimating the ET in the middle and high latitudes of China;The spatial and temporal changes of the Songhua River basin show that the total ET in the basin has been relatively stable in recent years,but with a spatial variation.
Evapotranspiration(ET)is the key link between land surface energy balance and water movement.Accurate estimation of ET on basin scale is of great significance to climate change studies,water resources management,crop yield estimation and environmental protection.Combining the climate characteristics,land use types and vegetation dynamics in the middle and high latitudes of China,an ET estimation model was proposed based on Surface Energy Balance System(SEBS)..The model was then applied to the Songhua River basin to estimate ET.The estimation accuracy of the model was validated by the water balance and ecological observations in the basin,and MTE data of global flux observation network.The simulation accuracy of the model was also evaluated by cross-validation of a land surface process model and NASA MOD16 ET.The results show that the improved SEBS model has a high accuracy in estimating the ET in Songhua River and Liaohe River basins in China,but the accuracy is not uniform in the whole country;The model is a reasonable method for estimating the ET in the middle and high latitudes of China;The spatial and temporal changes of the Songhua River basin show that the total ET in the basin has been relatively stable in recent years,but with a spatial variation.
引文
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[24]严家宝,贾绍凤,吕爱锋,等.近十年中国陆地水储量变化及其时空分布规律[J].南水北调与水利科技,2016,14(4):21-28.(YAN J B,JIA S F,LYU A F,et al.Spatial-temporal variation characteristics of China terrestrial water storage in the last ten years[J].South-to-North Water Transfers and Water Science&Technology,2016,14(4):21-28.(in Chinese))DOI:10.13476/j.cnki.nsbdqk.2016.04.004.
[25]冯险峰.基于过程的中国陆地生态系统生产力和蒸散遥感研究[D].北京:中国科学院地理科学与资源研究所.2004.(FENG X F.Process based remote sensing study on productivity and evapotranspiration of terrestrial ecosystems in China[D].Beijing:Institute of Geographic Sciences and Natural Resources Research,Chinese A-cademy of Sciences.2004.(in Chinese))
[26]杨扬,杨启东,孙旭映,等.三个陆面过程模式在西北半干旱区的模拟性能对比[J].气候与环境研究,2016,21(4):405-417.(YANG Y,YANG Q D,SUNX Y.A comparative research of the simulation capability of NOAH,SHAW,and CLM models in SemiArid areas of Northwestern China[J].Climatic and Environmental Research,2016,21(4):405-417.(in Chinese))
[27]董晴晴,占车生,王会肖,等.2000年以来的渭河流域实际蒸散发时空格局分析[J].干旱区地理,2016,39(2):327-335.(DONG Q Q,ZHAN C S,WANG HX,et al.Spatio-temporal patterns of actual evapotranspiration in the Weihe River Basin since 2000[J].Arid Land Geography,2016,39(2):327-335.(in Chinese))DOI:10.18402/resci.2017.02.10.
[2]王松,田巍,刘小莽,等.不同蒸散发产品在汉江流域的比较研究[J].南水北调与水利科技,2018,16(3):1-9.(WANG S,TIAN W,LIU X M,et al.Comparison of various evapotranspiration productions in the Hanjiang River Basin[J].South-to-North Water Transfers and Water Science&Technology,2018,16(3):1-9.(in Chinese))DOI:10.13476/j.cnki.nsbdqk.2018.0061.
[3]WANG K,DICKINSON E.A review of global terrestrial evapotranspiration:observation,modeling,climatology,and climatic variability[J].Reviews of Geophysics,2012,50(2).DOI:10.1029/2011RG000373.
[4]田静,苏红波,孙晓敏,等.GDAS数据和NOAH陆面模式在中国应用的精度检验[J].地理科学进展,2011,30(11):1422-1430.(TIAN J,SU H B,SUN X M,et al.Accuracy test for the application of GDAS data and NOAH land surface model to China[J].Progress in Geography,2011,30(11):1422-1430.(in Chinese))
[5]BARKER J B,HEEREN D M,NEALE C M U,et al.Evaluation of variable rate irrigation using a remotesensing-based model[J].Agricultural Water Management,2018,203:63-74.DOI:10.1016/j.agwat.2018.02.022.
[6]MAES B U W,STEPPE K.Estimating evapotranspiration and drought stress with ground-based thermal remote sensing in agriculture:a review.[J].Journal of Experimental Botany,2012,63(13):4671-4712.DOI:10.1093/jxb/ers165.
[7]尹剑,欧照凡,付强,等.区域尺度蒸散发遥感估算---反演与数据同化研究进展[J].地理科学,2018,38(3).(YIN J,OU Z F,FU Q,et al.Review of current methodologies for regional evapotranspiration estimation:inversion and data assimilation[J].Scientia Geographica Sinica,2018,38(3):448-456.(in Chinese))DOI:10.13249/j.cnki.sgs.2018.03.015.
[8]JIA L,SU Z,VAN DEN HURK B,et al.Estimation of sensible heat flux using the Surface Energy Balance System(SEBS)and ATSR measurements[J].Physics and Chemistry of the Earth,2003,28(1-3):75-88.DOI:10.1016/S1474-7065(03)00009-3.
[9]GOKMEN M,VEKERDY Z,VERHOEF A,et al.Integration of soil moisture in SEBS for improving evapotranspiration estimation under water stress conditions[J].Remote Sensing of Environment,2012,121(138):261-274.DOI:10.1016/j.rse.2012.02.003.
[10]HUANG C,YAN L,GU J,et al.Improving estimation of evapotranspiration under water-limited conditions based on SEBS and MODIS data in arid regions[J].Remote Sensing,2015,7(12):16795-16814.DOI:10.3390/rs71215854.
[11]LOSGEDARAGH S Z,RAHIMZADEGAN M.Evaluation of SEBS,SEBAL,and METRIC models in estimation of the evaporation from the freshwater lakes(Case study:Amirkabir dam,Iran)[J].Journal of Hydrology,2018,561:523-531.DOI:10.1016/j.jhydrol.2018.04.025.
[12]占车生,夏军.中国陆面蒸散发量的遥感反演及时空格局[M].北京:知识产权出版社.2010.(ZHAN C S,XIA J.Remote sensing inversion and temporal spatial pattern of evapotranspiration in China[M].Beijing:Intellectual Property Publishing House.2010(in Chinese))
[13]MA Y,LIU S,ZHANG F,et al.Estimations of regional surface energy fluxes over heterogeneous oasisdesert surfaces in the middle reaches of the Heihe River During HiWATER-MUSOEXE[J].IEEE Geoscience&Remote Sensing Letters,2015,12(3):671-675.DOI:10.1109/LGRS.2014.2356652.
[14]FU Q,WANG X,WANG Z,et al.Analysis of the effects of different snow cover mulches on spatio-Temporal variations of farmland soil moisture.Applied Engineering in Agriculture,2015,31(6),919-928.
[15]姜艳阳,王文,周正昊.MODIS MOD16蒸散发产品在中国流域的质量评估[J].自然资源学报,2017,32(3):517-528.(JIANG Y Y,WANG W,ZHOU Z H.Evaluation of MODIS MOD16 pvaportranspiration product in Chinese River Basins[J].Journal of Natural Resources,2017,32(3):517-528.(in Chinese))DOI:10.11849/zrzyxb.20160440.
[16]SONG X,SONG S,SUN W,et al.Recent changes in extreme precipitation and drought over the Songhua River Basin,China,during 1960-2013[J].Atmospheric Research,2015,157:137-152.DOI:10.1016/j.atmosres.2015.01.022.
[17]YAO W,HAN M,XU S.Estimating the regional evapotranspiration in Zhalong wetland with the TwoSource Energy Balance(TSEB)model and Landsat7/ETM+images[J].Ecological Informatics,2010,5(5):348-358.DOI:10.1016/j.ecoinf.2010.06.002.
[18]SU Z.Remote sensing of land use and vegetation for mesoscale hydrological studies[J].International Journal of Remote Sensing,2000,21(2):213-233.DOI:10.1080/014311600210803.
[19]BRUTSAERT W.Aspects of bulk atmospheric boundary layer similarity under free-convective conditions[J].Reviews of Geophysics,1999,37(4):439-451.DOI:10.1029/1999RG900013.
[20]ZHAN C,YIN J,WANG F,et al.Regional estimation and validation of remotely sensed evapotranspiration in China[J].Catena,2015,133(133):35-42.DOI:10.1016/j.catena.2015.04.018.
[21]JUNG M,REICHSTEIN M,CIAIS P,et al.Recent decline in the global land evapotranspiration trend due to limited moisture supply[J].Nature,2010,467(7318):951-954.DOI:10.1038/nature09396.
[22]BALDOCCHI,D.Breathing of the terrestrial biosphere:lessons learned from a global network of carbon dioxide flux measurement systems[J].Australian Journal of Botany,2008,56(1):1-26.DOI:10.1071/BT07151.
[23]MU Q,ZHAO M,RUNNING S W.Improvements to a MODIS global terrestrial evapotranspiration algorithm[J].Remote Sensing of Environment,2011,115(8):1781-1800.DOI:10.1016/j.rse.2011.02.019.
[24]严家宝,贾绍凤,吕爱锋,等.近十年中国陆地水储量变化及其时空分布规律[J].南水北调与水利科技,2016,14(4):21-28.(YAN J B,JIA S F,LYU A F,et al.Spatial-temporal variation characteristics of China terrestrial water storage in the last ten years[J].South-to-North Water Transfers and Water Science&Technology,2016,14(4):21-28.(in Chinese))DOI:10.13476/j.cnki.nsbdqk.2016.04.004.
[25]冯险峰.基于过程的中国陆地生态系统生产力和蒸散遥感研究[D].北京:中国科学院地理科学与资源研究所.2004.(FENG X F.Process based remote sensing study on productivity and evapotranspiration of terrestrial ecosystems in China[D].Beijing:Institute of Geographic Sciences and Natural Resources Research,Chinese A-cademy of Sciences.2004.(in Chinese))
[26]杨扬,杨启东,孙旭映,等.三个陆面过程模式在西北半干旱区的模拟性能对比[J].气候与环境研究,2016,21(4):405-417.(YANG Y,YANG Q D,SUNX Y.A comparative research of the simulation capability of NOAH,SHAW,and CLM models in SemiArid areas of Northwestern China[J].Climatic and Environmental Research,2016,21(4):405-417.(in Chinese))
[27]董晴晴,占车生,王会肖,等.2000年以来的渭河流域实际蒸散发时空格局分析[J].干旱区地理,2016,39(2):327-335.(DONG Q Q,ZHAN C S,WANG HX,et al.Spatio-temporal patterns of actual evapotranspiration in the Weihe River Basin since 2000[J].Arid Land Geography,2016,39(2):327-335.(in Chinese))DOI:10.18402/resci.2017.02.10.