基于 Modis 数据的滇中地区2008年地表热环境及变化特征研究

以 MODIS 数据资料研究滇中地区地表温度动态变化规律,旨在为研究滇中地区地表热环境的影响积累资料,为自然资源监测、保护及其相关领域提供理论数据,为相关部门制定决策提供科学依据.在总结和分析当前常用地表温度反演算法的基础上,采用分裂窗算法来反演地表温度.分析了2008年滇中地区地表热环境的变化特征,结果表明:在热量分布方面,由西北向东南递增,东部丰富、西部偏少.

Research on the Surface Thermal Environment and Variation Characteristics in the Central Yunnan Province in 2008 Based on the Modis Data

It is studied on the rule of surface temperature MODIS data information, aiming at the accumulation of the tendency variation in central Yunnan Province by using the data for the local surface thermal environment influence, so at to provide the gross data for the monitoring and protection of natural resources, and to provide the scientific basis for the decision - making of the concerned authorities. Based on the summary and analysis of the current common surface temperature inversion algorithm, it is inversed the surface temperature by using the fission window algorithm to analyze the variation features of the surface thermal environment in the Central Yunnan Province in 2008. The results show that the thermal distribution gradually increases from north -west to south -east appearing the rich distribution in the east part and less in the west part.