农村居民地地表温度的遥感反演与分析

Remote sensing inversion and analysis of land surface temperature in rural settlements

本文以Landsat ETM+影像为数据源,利用单窗算法反演了南阳盆地部分农村区域的地表温度(LST)。对农村居民地与其周边环境的LST分异情况、不同农村居民地之间的LST差异及成因进行了分析,结果表明:作物收割后的一定时期内,农村居民地表现为分散在大范围高温背景中的冷斑块;农村居民地之间的LST存在明显差异;农村居民地LST与其NDVI呈显著的负相关,与NDBI呈显著的正相关。

Based on Landsat Thematic Mapper Plus （ETM ） data, the paper retrieved land surface temperature （LST） of part of rural area in Nanyang Basin using mono-window algorithm. The LST differentiation between the rural settlements and their surround- ing environment, the differentiation of the settlements and the causes were analyzed. The results showed that the rural settlements ap- pear being low-temperature patches scattered in a large high-temperature background in a certain period after crop harvest. There is significant LST difference among those settlements. There is a significant negative correlation between LST and NDVI and a significant positive correlation between LST and NDBI.