Observation of thermal space environment based on remote sensing

Based on the background of global warming and urbanlization, the city hotland has become one element of controling the city climate and enviroment, so how to quantitatively analyze the structure of urban thermal environment and its change feature become the most question for people. Author use the landsetTM as the datasource, analyse the Han Dan city´s city hotland and NDVI, the result indicate that: The affection of city hotland in handan is obvious, it´s area is 33.8km2, the iron factory of handan and the wanda shopping is the mainly hotland center, the study also show the NDVI in Handan is very lower, and display the nagative relation to the hotland.