Investigating Feature of Urban Surface Temperature with Distribution Of Land Cover Types in Hochiminh City using Thermal Infrared Remote Sensing

摘要

During the last decades, Hochiminh City became the biggest industrial, commercial center in Vietnam with population more than 6 millions people. The population growth and socio-economic development results rapid increasing transportation, urban expansion has reached to suburban areas. It effects a change of microclimate in urban areas, most evident that the increasing of urban surface temperature is compare with suburban areas, formed "head island" in the atmosphere boundary above urban; it could simultaneously pose serious environmental problems for its inhabitants (e.g., urban waterlogged and thermal pollution). Thermal infrared remote sensing proved its capacity in monitoring temperature field. The purpose of this study is to evaluate the use of Landsat ETM~+ data for indicating temperature differences in urban areas and compare the relationships between urban surface temperature and land cover types. The urban temperature distribution map and the analyses of thermal-land cover relationships can be used as the reference for urban planning and the solution to head island effect reduction.