中国农业气象 ›› 2009, Vol. 30 ›› Issue (S1): 137-139.

• 论文 • 上一篇    下一篇

基于MODIS数据的地表温度反演——以天津地区为例

王铁;黎贞发;   

  1. 天津市气候中心;
  • 出版日期:2009-12-15 发布日期:2009-12-15

Land Surface Temperature Retrieve Based on MODIS Data——A Case Study for Tianjin

WANG Tie,LI Zhen-fa(Tianjin Climate Center,Tianjin 300074,China)   

  • Online:2009-12-15 Published:2009-12-15

摘要: 地表温度是气象、生态等研究领域的重要参数之一。本文对MODIS数据的分裂窗算法进行简单介绍,并将该算法应用到天津市区域。通过遥感反演数据与地面观测资料的对比,反演结果能真实反映出地表热场的分布特征,二者有很好的相关性(R2=0.38,P<0.0001)。通过多时次数据的线性拟合可有效提高反演精度,可为城市热岛研究提供有力的技术支持。

关键词: 地表温度, MODIS, 天津, 裂窗法

Abstract: Land surface temperature is one of important parameters in meteological and ecological research field.Split window algorithm based on MODIS data was briefly introduced and applied in Tianjin area.Comparison between data retrieval and surface observation data showed that data retrieval could reflect distribution of land surface thermal field.Data retrieval correlates very well with the observation data(R2=0.38,P<0.0001).Linear fitting of different time series data can improve retrieval precision effectively.The results could provide technical support for urban heat island study.

Key words: Land surface temperature, MODIS, Tianjin, Split Window Algorithm