地理科学进展 ›› 2001, Vol. 20 ›› Issue (3): 262-267.doi: 10.11820/dlkxjz.2001.03.009

• 论文 • 上一篇    下一篇

地表热辐射方向性研究进展

陈良富1, 范闻捷2,1, 柳钦火1   

  1. 1. 中国科学院遥感应用研究所遥感信息科学开放研究实验室,北京100101;
    2. 北京大学遥感与地理信息系统研究所,北京100871
  • 收稿日期:2001-06-01 修回日期:2001-08-01 出版日期:2001-08-24 发布日期:2001-08-24
  • 作者简介:陈良富(1965-),男,博士,副研究员。主要从事可见光、热红外定量遥感基础理论研究。
  • 基金资助:

    国家攀登项目(95-预-38);国家重点基础研究发展规划项目(G2000077900)

The Study on Thermal Infrared Radiant Directionality of Non isothermal Land Surface

CHEN Liang fu1, FAN Wen jie2,1, LIU Qin huo1   

  1. 1. Laboratory of Remote Sensing Information Sciences, Institute of Remote Sensing Applications, CAS, Beijing 100101, China;
    2. Institute of Remote Sensing and GIS, Peking University, Beijing 100871,China
  • Received:2001-06-01 Revised:2001-08-01 Online:2001-08-24 Published:2001-08-24

摘要: 地表热辐射方向性是基于多角度热红外遥感数据反演组分温度的基本问题 ,论文分析了国内外近来从等效比辐射率和热辐射模型两个角度研究非同温热辐射方向性所取得的进展和存在的问题 ,并指出今后应继续基本概念的探讨 ,加强遥感基础实验和热辐射理论模型简化和验证工作 ,进一步探讨基于热红外多角度遥感数据反演组分温度的新方法。

关键词: 非同温混合像元, 热辐射方向性

Abstract: The angular effects of emitted radiation from non isothermal land surface are the basis for component temperatures retrieval from multi angle thermal infrared remote sensing data. This paper reviews two different directions in the studies of this field. One is to define new concepts of emissivity, for example, the "e emissivity", "r emissivity", the band averaged emissivity, and "canopy emissivity" et al. Some of the them are component temperatures dependent. Another is to build thermal radiant model to illustrate the emitted radiation from non isothermal mixed pixel. This paper then shows the recent progress of this field in China. It also points out in final section that several trends should be strengthened, such as the basic theories and concept, the remote sensing field measurement, the simplification and test of radiant model, and algorithms of component temperatures retrieval from multi angle data of thermal infrared remote sensing.

Key words: non isothermal mixed pixel, radiant directionality

中图分类号: 

  • P422.2