土壤蒸发和植被蒸腾遥感估算与验证

发布时间：2018-06-19 06:00

本文选题：土壤蒸发 + 植被蒸腾　；参考：《遥感学报》2017年06期

【摘要】：地表蒸散发是土壤—植被—大气系统中能量和水循环的重要环节,它包括土壤、水体和植被表面的蒸发,以及植被蒸腾。随着地表参数多源遥感产品的快速发展,利用不同地表参数遥感产品估算地表蒸散发以及其组分土壤蒸发和植被蒸腾成为日常监测越来越便利,监测尺度已从单站扩展到田块、区域乃至全球。目前地表蒸散发双层遥感估算模型按照建模机理的不同可分为:系列模型、平行模型、基于特征空间的模型、结合传统方法的模型以及数据同化方法。本文从模型构建物理机制、模型驱动数据以及模型输出结果验证等方面总结了上述模型的发展历史和现状,并指出在模型结构与参数化方案的优化、高分辨率模型驱动数据的发展、土壤蒸发和植被蒸腾像元尺度"地面真值"的获取等方面都仍需进一步完善。
[Abstract]:Surface evapotranspiration is an important part of energy and water cycle in soil-vegetation-atmosphere system. It includes soil, evaporation of water body and vegetation surface, and vegetation transpiration. With the rapid development of multi-source remote sensing products with different surface parameters, the estimation of surface evapotranspiration and its components soil evaporation and vegetation transpiration become more and more convenient, and the monitoring scale has been extended from single station to field. Regional and global. At present, according to the different modeling mechanism, the surface evapotranspiration bilayer remote sensing estimation model can be divided into series model, parallel model, feature space based model, combined with the traditional method model and data assimilation method. In this paper, the development history and present situation of the above models are summarized from the aspects of physical mechanism of model construction, model-driven data and verification of model output results, and the optimization of model structure and parameterization scheme is pointed out. The development of data driven by high resolution model, soil evaporation and the acquisition of "ground truth value" of vegetation transpiration pixel scale still need to be further improved.
【作者单位】：西南大学遥感大数据应用重庆市工程研究中心地理科学学院;北京师范大学地理科学学部地表过程与资源生态国家重点实验室;邯郸学院经济管理学院地理系;
【基金】：国家自然科学基金(编号:41531174) 国家重大科学研究计划课题(编号:2015CB953702) 西南大学博士基金(含人才引进计划)项目(编号:SWU11042) 中央高校基本科研业务费专项资金(编号:XDJK2017C004)~~
【分类号】：Q945;S152.73;TP79

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