基于SEBAL模型遥感反演的蒸散量时空分布特征研究
Spatiotemporal Distribution Characteristics of Evapotranspiration Based on SEBAL Model and Remote Sensing
DOI: 10.12677/JWRR.2020.94043, PDF,    科研立项经费支持
作者: 乔 鹏, 王 岚：吐鲁番市水资源管理中心，新疆 吐鲁番
关键词: 遥感；蒸散发；SEBAL模型；吐鲁番市；Remote Sensing； Evapotranspiration； SEBAL Model； Turpan City
摘要: 应用2014~2018年MODIS产品、气象观测数据、DEM等数据资料，采用SEBAL模型估算分析吐鲁番市的蒸散特征。结果表明：2014~2018年吐鲁番市平均年总蒸散量为3.25 × 109 m3，且蒸散量时空差异显著，97%的蒸散量集中在4~10月份，年际间呈波动下降趋势；对于不同土地利用类型，单位面积年蒸散量耕地 > 城乡、工矿及居民用地 > 林地 > 草地 > 水域 > 其他用地，其中草地及其他用地所占面积较大，年总蒸散量最高，草地、耕地及其他用地三者蒸散量占总蒸散90%以上，水域多为积雪区、季节性水域且面积较小，年总蒸散量及单位面积年均蒸散量均不高。
Abstract: The evapotranspiration characteristics in Turpan city were estimated and analyzed based on SEBAL mod-el using MODIS, DEM and meteorological observation data during 2014-2018. The results show that the average total evapotranspiration is 3.25 × 109 m3 with significant spatiotemporal difference. 97% of the total evapotranspiration is concentrated in April-October which shows a fluctuating downward trend. For different types of land use, the average annual evapotranspiration per unit area is decreased in following order: cultivated land is greater than urban, industrial, mining lands, and residential land is greater than forestland, grassland, waters area, and other land. Grassland and other land annual total evapotranspiration are the highest due to they occupy larger area. Grassland, cultivated land and other land account for more than 90% of annual total evapotranspiration. Most of the water areas are snow-covered, seasonal, or small area, so the annual total and average evapotranspiration per unit area are not too large.
文章引用：乔鹏, 王岚. 基于SEBAL模型遥感反演的蒸散量时空分布特征研究[J]. 水资源研究, 2020, 9(4): 411-420. https://doi.org/10.12677/JWRR.2020.94043

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