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A revised surface resistance parameterisation for estimating latent heat flux fromremotely sensed data
Song, Y (Song, Yi)[1,2]; Wang, JM (Wang, Jiemin)[1]; Yang, K (Yang, Kun)[3]; Ma, MG (Ma, Mingguo)[1]; Li, X (Li, Xin)[1]; Zhang, ZH (Zhang, Zhihui)[1,4]; Wang, XF (Wang, Xufeng)[1,4]
2012-07-01
发表期刊International Journal of Applied Earth Observation andGeoinformation
卷号17期号:SI页码:76-84
文章类型期刊论文
摘要

Estimating evapotranspiration (ET) is required for many environmental studies. Remote sensing provides the ability to spatially map latent heat flux. Many studies have developed approaches to derive spatially distributed surface energy fluxes from various satellite sensors with the help of field observations. In this study, remote-sensing-based E mapping was conducted using a Landsat Thematic Mapper (TM) image and an Enhanced Thematic Mapper Plus (ETM+) image. The remotely sensed data and field observations employed in this study were obtained from Watershed Allied Telemetry Experimental Research (WATER). A biophysics-based surface resistance model was revised to account for water stress and temperature constraints. The precision of the results was validated using ‘ground truth’ data obtained by eddy covariance (EC) system. Scale effects play an important role, especially for parameter optimisation and validation of the latent heat flux ( E). After considering the footprint of EC, the E derived from the remote sensing data was comparable to the EC measured value during the satellite’s passage. The results showed that the revised surface resistance parameterisation scheme was useful for estimating the latent heat flux over cropland in arid regions.

关键词Latent Heat Flux LAndsat Tm And eTm+ Surface Resistance
DOI10.1016/j.jag.2011.10.011
收录类别SCIE
语种英语
引用统计
被引频次:18[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/10158
专题生态环境研究室
通讯作者Song, Y (Song, Yi)[1,2]
作者单位1.Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;
2.Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075, China;
3.Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China;
4.Graduate University of Chinese Academy of Sciences, Beijing 100049, China
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GB/T 7714
Song, Y ,Wang, JM ,Yang, K ,et al. A revised surface resistance parameterisation for estimating latent heat flux fromremotely sensed data[J]. International Journal of Applied Earth Observation andGeoinformation,2012,17(SI):76-84.
APA Song, Y .,Wang, JM .,Yang, K .,Ma, MG .,Li, X .,...&Wang, XF .(2012).A revised surface resistance parameterisation for estimating latent heat flux fromremotely sensed data.International Journal of Applied Earth Observation andGeoinformation,17(SI),76-84.
MLA Song, Y ,et al."A revised surface resistance parameterisation for estimating latent heat flux fromremotely sensed data".International Journal of Applied Earth Observation andGeoinformation 17.SI(2012):76-84.
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