LAND SURFACE TEMPERATURE RETRIEVAL BASED ON BEIJING THERMAL INFRARED DATA OF HJ-1B

摘要

Small Satellite for Environment and Disaster Monitoring and Forecasting has characteristics of high temporal resolution and wide swath. This article is based on the modified single-channel method, combined with the HJ-1B multispectral data and MODIS data for land surface temperature retrieval of Beijing. Then the retrieved results are compared with EOS MODIS products and the results illustrate that: a) The land surface temperature is closer to the actual situation; b) HJ-1B land surface temperature is lower than those of EOS MODIS by comparing the retrieved result with the land surface temperature products of EOS MODIS; c) The urban heat island effect in Beijing urban area is very obvious by analysis of the land surface temperatures distribution maps.