Surface Emissivity in Determining Land Surface Temperature
Ho Tong Minh Dinh
Department of Geomatics Engineering, University of Technology, Vietnam National University, Ho Chi Minh City, 268 Ly Thuong Kiet Street, Dist. 10, Ho Chi Minh City, Vietnam
Le Van Trung
Department of Geomatics Engineering, University of Technology, Vietnam National University, Ho Chi Minh City, 268 Ly Thuong Kiet Street, Dist. 10, Ho Chi Minh City, Vietnam
Tran Thi Van
Department of Geoinfomatics, Institute for Environment and Resources, Vietnam National University, Ho Chi Minh City, 142 To Hien Thanh Street, Dist. 10, Ho Chi Minh City, Vietnam
要旨
Land surface temperatures are important in global change studies, in estimating radiation budgets in heat balance studies and as a control for climate models. Land surface temperature (LST) is strongly influenced by the ability of the surface to emit radiation (i.e. surface emissivity). Therefore, knowledge of the surface emissivity is crucial for estimating the radiation balance at the earth surface. In this paper, we will evaluate the use of Landsat data for determining LST in Ho Chi Minh City based on association surface emissivity value with land cover information.