【作者】 陆殿梅；

【导师】 何秉宇；

【作者基本信息】 新疆大学 ， 人文地理学， 2006， 硕士

【摘要】 本文采用目前地表温度（Land Surface Temperature）反演方法中流行的单窗算法和劈窗算法，借助遥感技术，利用MODIS影像的第31通道和第32通道的亮度值反演出天山北坡地区2000年至2005年5年的7月份的地表温度，将研究区的地表温度划分出高温区（40℃—60℃。包括40℃，60℃）、中温区（30℃—40℃。不包括40℃，包括30℃）和低温区（0℃—30℃。不包括30℃，包括0℃）。同时又利用MODIS影像的第1通道和第2通道的亮度值计算出该区域的NDVI值，并将其转化为植被盖度。结合反演出的地表温度和植被盖度进行分析研究，结果表明与地表温度相关性最好的植被盖度范围为40％—60％和10％—20％的区域。进一步分析后得到如下结论： （1）、2000年到2005年温度的变化情况 2000年至2005年地表温度40℃—60℃的面积占总面积的49.99％，且呈急剧上升状态；地表温度30℃—40℃的面积占总面积的17.64％，且呈急剧下降趋势；地表温度在30℃以下的面积占总面积的25.75％，呈减少趋势。 （2）、2000年到2005年植被盖度的变化 2000年至2005年植被盖度60％到100％的面积有增加的趋势，其中盖度80％剑100％之间的增长幅度较大；盖度从20％剑60％都成下降趋势；盖度从无植被覆盖区域到20％有增长趋势。其中盖度10％—20％增长趋势明显，盖度0％—10％和无植被区域增长较缓慢。 （3）、2000年到2005年地表温度和植被盖度相关性分析 高温区40℃—60℃同植被盖度40％—60％呈很好的负相关性，同植被盖度10％—20％呈正相关；中温区30℃—40℃同植被盖度40％—60％呈很好的正相关性，同植被盖度10％—20％呈负相关；低温区0℃₃0℃同植被盖度40％—60％正相关性最好，同植被盖度10％—20％呈负相关。 （4）、2000年到2005年植被盖度对研究区地表温度产生的影响分析 植被盖度40％—60％和植被盖度10％-20％同高温区、中温区、低温区都存在很好的相关关系，因此它们是影响区域地表温度的最主要因素，它们的升降变化，直接影响到研究区地表温度的变化。 （5）、2000年到2005年地表温度对研究区植被盖度产生的影响分析 从地表温度和植被盖度相关性关系中可以得出：地表温度的变化可以引起地表植更多还原

【Abstract】 This paper uses Single-Window and Split-Window which are the most famous arithmetic to deduce the LST. By dint of remote sensing, this paper uses the brightness of MODIS band31 and MODIS band32 to deduce the LST of North-Tianshan Mountain areas between the July of 2000 and 2005. Then we divide the area into high temperature (40℃ -60℃.Including 40℃ and 60℃), middling temperature (30℃-40℃. Without 40℃, but including 30℃) and low temperature (0℃-30℃. Without 30℃, but including 0℃). At the same time we use the brightness of MODIS band1 and band2 to calculate NDVI of this area, and translate it into coverage of vegetation. We do some research by combining LST with coverage of vegetation, then the result indicates that 40%-60% coverage of vegetation and 10%-20% coverage of vegetation have the best relationship with LST. By further analysis we can draw the following conclusion:(1) The change of temperature between 2000 and 2005The percentage of 40℃-60℃ LST was 49.99% in the whole area, and raising sharply. The percentage of 30℃-40℃ LST was 17.64% in the whole area, and declining sharply. The percentage under 30℃ LST was 25.75% in the whole area, and declining sharply.(2) The coverage of vegetation between 2000 and 2005The area of 60%-100% coverage of vegetation increased, especially the 80%-100% coverage of vegetation. The coverage of vegetation between 20% and 60% declined. The coverage of vegetation under 20% trends to increase, especially the coverage of vegetation between 10% and 20%. But the coverage of vegetation between 0% and 10% increased slowly.(3) The analysis of relationship between LST and coverage of vegetationHigh temperature of 40℃-60℃ has the contrary relationship with 40%-60% coverage of vegetation, but has the just relationship with 10%-20% coverage of vegetation. Middling temperature of 30℃-40℃ has the just relationship with 40%-60% coverage of vegetation, but has the contrary relationship with 10%-20% coverage of vegetation. Low temperature of 0℃-30℃ has the just relationship with 40%-60% coverage of vegetation, but has the contrary relationship with 10%-20% coverage of vegetation.更多还原