Reconstruction of Cloudy Land Surface Temperature by Combining Surface Energy Balance Theory and Solar-Cloud-Satellite Geometry

文献类型： 外文期刊

第一作者： Du, Wenhui

作者： Du, Wenhui;Li, Zhao-Liang;Qin, Zhihao;Liu, Xiangyang;Zhao, Chunliang;Fan, Jinlong;Cao, Kun

作者机构：

关键词： Clouds; Land surface temperature; Surface reconstruction; Land surface; Image reconstruction; Solar radiation; Remote sensing; Geometry; Sensors; Lighting; Land surface temperature (LST) under clouds; reconstruction; solar-cloud-satellite geometry; surface energy balance (SEB)

期刊名称：IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING （ 影响因子：8.6； 五年影响因子：8.8 ）

ISSN： 0196-2892

年卷期： 2025 年 63 卷

页码：

收录情况： SCI

摘要： Reconstruction of land surface temperature (LST) under clouds has been an area of significant research interest in recent years. Solar-cloud-satellite geometry has significant impacts on satellite-derived land surface biophysical parameters, such as radiation flux and LST; however, current studies often neglect these influences on reconstruction of cloudy LST. To address this challenge, we developed an integrated methodology for generating seamless all-weather LST based on surface energy balance (SEB) theory with consideration of the solar-cloud-satellite geometry effects both on LST and radiation. Cloudy pixels were categorized (radiation-unobstructed and radiation-obstructed clouds) and reconstructed separately to account for geometry effects. Moreover, corrections were incorporated to mitigate geometry effects on net surface shortwave radiation (NSSR), the crucial intermediate input data for estimating cloudy LST. Compared to the existing method, validation results using ground measurements from the Surface Radiation Budget (SURFRAD) network demonstrate significant improvements, with average errors decreasing from 5.62 to 1.86 K under radiation-unobstructed conditions and from 3.26 to 1.33 K under radiation-obstructed conditions, respectively. This study contributes valuable insights to reconstructing LST under varying cloudy conditions, indicating the importance of considering geometry effects for robust and reliable cloudy LST assessments.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序