摘要
本文利用Landsat5的TM 6热红外数据 ,利用实时的地表温度对不同温度演算算法进行了回归检验 ,根据统计的原理对各种方法做出评价 ,并优先了一种方法进行成都市地面温度场的分布分析。本文也就同一大气条件下的地温和气温之间的关系作了分析 ,认为用卫星影像的DN值代替气温研究热岛效应是不合适的。
Landsat TM has a thermal band(TM6) to monitor the thermal radiance land surface temperature of the earth. For a long time, many methods was developed to cumpute the temperature from thermal band. The paper used local meteorology data in Chengdu city for analyzing and to decided suitable method. The relationship of air temperature and land surface temperature was also analyzed. The result showed that it is not suitable if DN value substitute the air temperature for analyzing Hot Island Effect.
出处
《遥感信息》
CSCD
2004年第1期35-37,共3页
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