Methods to separate observed global evapotranspiration into the interception, transpiration and soil surface evaporation components
Methods to separate observed global evapotranspiration into the interception, transpiration and soil surface evaporation components
复制标题
DOI：
10.1002/hyp.8409
复制
发表时间：
2011-12
影响因子：
3.2
通讯作者：
E. Blyth;R. Harding
中科院分区：
文献类型：
--
作者：
E. Blyth;R. Harding
蒸发由三部分组成：截留、土壤表面蒸发和蒸腾。它们各自有不同的水储存量和不同的特征时间尺度。如果能够在大尺度甚至全球尺度上确定这些组成部分的相对比例，将有助于陆面模式的验证。本文从局地尺度、景观尺度和遥感尺度三个方面对大尺度蒸发量组分分离的可能性进行了评述。所使用的许多传统方法需要密集的测量方案，不太可能在大规模上实用。使用时间序列分析的新技术可用于提供全局三组分蒸发产物。版权所有© 2011约翰威利父子有限公司.
Evaporation is made up of three components: interception, soil surface evaporation and transpiration. They each have different stores of water and different characteristic timescales. It would be useful to be able to identify the relative proportions of these components at large, even global, scales for land surface model validation. The possibility of separating out the components of observed evaporation at large scales is reviewed with reference to methods used at local scales, landscape scales and scales used in remote sensing. Many of the traditional methods used require intensive measurement programmes and are unlikely to be practical at large scales. New techniques using time‐series analysis may be used to deliver a global three‐component evaporation product. Copyright © 2011 John Wiley & Sons, Ltd.