| 基于遥感的黄河三角洲蒸散的动态分析 |
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| 引用本文： | 潘志强,刘高焕,周成虎.基于遥感的黄河三角洲蒸散的动态分析[J].地理学报(英文版),2003,13(4):408-415. |
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| 作者姓名： | 潘志强 刘高焕 周成虎 |
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| 作者单位： | StateKeyLaboratoryofResourceandEnvironmentInformationSystem,InstituteofGeographicSciencesandNaturalResourcesResearch,CAS,Beijing100101,China |
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| 基金项目： | Knowledge Innovation Prject of the Institute of Geographic Science and Natural Resources Research,CAS,No.AD7095 |
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| 摘 要： | Evapotranspiration (ET) is an important parameter for water resource management. Compared to the traditional ET computation and measurement methods, the ET computation method based on remote sensing has the advantages of quickness, precision, raster mapping and regional scale. SEBAL, an ET computation model using remote sensing method is based on the surface energy balance equation which is a function of net radiance flux, soil heat flux, sensible heat flux and latent heat flux. The former three fluxes can be computed through the parameters retrieved from remote sensing image, then the latent heat flux can be obtained to provide energy for ET. Finally we can obtain the daily ET. In this study SEBAL was applied to compute ET in the Yellow River Delta of China where water resource faces a rigorous situation. Three Landsat TM images and meteorology data of 1999 were used for ET computation, and spatial and temporal change patterns of ET in the Yellow River Delta were analysed.
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| 关 键 词： | 土壤水分蒸发蒸腾损失总量 动态分析 遥感 黄河三角洲 |
| 收稿时间： | 20 April 2003 |
| 修稿时间： | 26 June 2003 |
Dynamic analysis of evapotranspiration based on remote sensing in Yellow River Delta |
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| Pan Zhiqiang Ph.D.,Liu Gaohuan,Zhou Chenghu.Dynamic analysis of evapotranspiration based on remote sensing in Yellow River Delta[J].Journal of Geographical Sciences,2003,13(4):408-415. |
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| Authors: | Pan Zhiqiang PhD Liu Gaohuan Zhou Chenghu |
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| Institution: | State Key Laboratory of Resource and Environment Information System,Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China |
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| Abstract: | Evapotranspiration (ET) is an important parameter for water resource management. Compared to the traditional ET computation and measurement methods, the ET computation method based on remote sensing has the advantages of quickness, precision, raster mapping and regional scale. SEBAL, an ET computation model using remote sensing method is based on the surface energy balance equation which is a function of net radiance flux, soil heat flux, sensible heat flux and latent heat flux. The former three fluxes can be computed through the parameters retrieved from remote sensing image, then the latent heat flux can be obtained to provide energy for ET. Finally we can obtain the daily ET. In this study SEBAL was applied to compute ET in the Yellow River Delta of China where water resource faces a rigorous situation. Three Landsat TM images and meteorology data of 1999 were used for ET computation, and spatial and temporal change patterns of ET in the Yellow River Delta were analysed. |
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| Keywords: | evapotranspiration remote sensing Yellow River Delta |
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