非渗透表面对地表温度的影响

Influence of Impervious Surface on Land Surface Temperature

以郑州市为研究区域,以Landsat TM/ETM+数据为主数据源,运用归一化线性光谱混合分析模型,生成1988/2001 2时段非渗透表面丰度影像,针对Landsat TM/ETM+数据的热红外波段,运用单窗算法反演郑州地区地表温度,得到1988/2001 2时段地表温度影像。通过分析非渗透表面丰度与地表温度的关系得到结论:非渗透表面丰度与地表温度呈正相关,但相关系数较低。

With Zhengzhou City as the research area and Landsat TM/ETM ＋ image as main data sources, normalized linearity spectral mixture analysis model is used to gain the scale image of the impervious surface in 1988/2001. It manages mono-window algorithm to retrieve land surface temperature based on the LandsatTM/ ETM ＋ hot infrared image, and thus gains the land surface temperature image of Zhengzhou region in 1988/ 2001. By analyzing the connection between impervious surface fraction and land surface temperature the conclusion has been made： impervious surface and land surface temperature are the positive correlation, but the correlation coefficient is quite low.