摘要
利用中分辨率成像光谱仪(MODIS)地表温度产品获得云南省2010年3月份平均地表温度数据,对研究区域地表温度的空间分布特征及高温区的成因等进行了分析.结果显示:云南省地表温度分布区域特征明显,极高温(>30℃)区域占全省面积的2%,高温(>24℃)所占的面积为53%,处于高温的地区较多,其中金沙江干热河谷及蒙自等地形成了明显的高温热岛,相应区域该时段严重的冬春连旱相对应.
EOS （earth observation satellites） and MODIS （moderate imaging spectra） data are very suitable for long-term,vast and dynamic environmental monitoring owing to their suitable resolution and easiness of data-collection.In the present study,the data of the mean land surface temperature （LST） of Yunnan province in March of 2010 is obtained based on MODIS data product,the spatial distribution of LST in the study regions is investigated and the causes for the formation of high-temperature zones are analyzed.The results show that regional distribution of LST of Yunnan is obvious,and 53% of the territory of the province is under high temperature （24 ℃） and 3% is under extremely high temperature （30 ℃）.Two Regional Heat Islands are identified in the Dry-Hot Valley of the Jinshajiang River and in Mengzi County.
出处
《西南大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第12期154-157,共4页
Journal of Southwest University(Natural Science Edition)
关键词
地表温度
modis陆地产品
环境监测
云南
land surface temperature （LST）
MODIS land product
environmental monitoring
Yunnan
