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  • 软件名称:复杂地表地表温度反演研究进展
  • 软件大小: 0.00 B
  • 软件评级: ★★★
  • 开 发 商: 肖尧,马明国,闻建光,于文凭
  • 软件来源: 《遥感技术与应用》
  • 解压密码:www.gissky.net

资源简介

摘要: 地表温度是陆表过程研究的关键参数,卫星反演地表温度是获取区域及全球尺度辐射平衡、能量收支研究中地表温度参数的有效手段。目前,在平坦地表覆盖均一区域,基于热红外和微波遥感反演的地表温度已经被验证具有较好精度,尤其热红外遥感地表温度产品精度可达1 K以内。但是针对复杂地表的温度反演研究仍面临较大挑战。系统总结了复杂地形区地表温度反演的局限性,包括反演模型病态问题、地形复杂性、水汽云雾厚重造成数据缺失、真实性检验不确定性。并在此基础上,对未来复杂地表温度反演精度提高提出了可能实现的途径。 关键词: 地表温度;  复杂地表;  反演方法;  水汽;  真实性检验     Abstract: Land Surface Temperature (LST) is a crucial input parameter in the study of land surface processes. It’s effective to estimate the radiation balance and energy budget at local and global scales using remotely sensed data. Currently, the fast development of LST retrieval algorithm based on thermal infrared and microwave remote sensing has made a series of progress. Its accuracy can reach within 1K in the uniform area of flat surface coverage derived from thermal infrared remotely sensed data especially. However, it is still a great challenge for their application over complex surface area. This paper systematically summarizes the limitations of LST retrieval in complex topographic areas, including pathological absence of inversion model, terrain complexity, data loss caused by thick vapor cloud, and uncertainty of authenticity test. Furthermore, we present suggestions for the future research to improve the accuracy of LST retrieval over complex surface.

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