大气与环境光学学报 ›› 2011, Vol. 6 ›› Issue (4): 287-293.

• 光学遥感与图像处理 • 上一篇    下一篇

基于MODIS数据的地表温度反演

杨鹏,杨世植,夏鹏   

  1. (中国科学院安徽光学精密机械研究所中国科学院通用光学定标与表征技术重点实验室, 安徽 合肥 230031)
  • 收稿日期:2011-01-20 修回日期:2011-02-21 出版日期:2011-07-28 发布日期:2011-07-18
  • 通讯作者: 杨鹏(1986-),男,山东枣庄人,研究生,主要从事遥感技术应用研究。 E-mail:fga12345678@163.com
  • 作者简介:杨鹏(1986-),男,山东枣庄人,研究生,主要从事遥感技术应用研究。
  • 基金资助:

    国家自然科学基金项目(41005016)资助

Land Surface Temperature Retrieved from MODIS Data

YANG Peng,YANG Shi-zhi,XIA Peng   

  1. (Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031,China)
  • Received:2011-01-20 Revised:2011-02-21 Published:2011-07-28 Online:2011-07-18

摘要:

利用MODIS影像数据,采用劈窗算法来反演安徽地区的地表温度。结合Sobrine、覃志豪等人提出的NDVITEM方法和地物监督分类方法,对地表比辐射率进行了估算,将反演结果与NASA的地表温度产品进行比较,平均误差在1 K左右。同时利用卫星过境当天从安徽省高密度自动监测站获取的实时数据对反演结果进行验证,发现反演温度与地面实测数据的曲线走势具有高度的一致性且有较高的相关性,能直观地反映安徽地区地表温度的空间分布。

关键词: 地表温度, MODIS, 劈窗算法, 地表比辐射率

Abstract:

The split-window algorithm was recommended to retrieve the land surface temperature of Anhui Province using MODIS image data. Based on the supervised classification methods and the NDVITEM methods proposed by Sobrino and Qin Zhihao, the land surface emissivity was estimated. The inversion results were compared with NASA land surface temperature products, and the average error was around 1 K. Furthermore, the results were compared with the surface temperature from the corresponding position weather station observation at the same time when satellite transits. The results reveal that they have the same trend and a high correlation, so it can reflect the land surface temperature of Anhui Province intuitively.

Key words: land surface temperature, MODIS, split-window algorithm, land surface emissivity

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