Title :
Relationship between urban heat sink and heat energy exchange in Beijing, China
Author :
Du, Mingyi ; Cai, Guoyin ; Qiu, Dongwei
Author_Institution :
Sch. of Geomatics & Urban Inf., Beijing Univ. of Civil Eng. & Archit., Beijing, China
Abstract :
During our monitoring of the UHI effect in central Beijing using Advance Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data, an urban heat sink was found. This paper focuses on the analysis of this urban heat sink developed in the winter morning of Beijing by analyzing the heat energy exchange in detail. The heat energy exchange including the net radiation, latent heat flux and sensible heat flux at the boundary between the land and atmosphere were calculated in our study area. The results show that the rural area has a bigger net radiation, sensible heat flux and smaller latent heat flux than that of the urban area, and the residue heat flux in the rural area is bigger than that of the urban area.
Keywords :
atmospheric boundary layer; atmospheric temperature; geophysical techniques; radiometry; remote sensing; ASTER; Advance Spaceborne Thermal Emission and Reflection Radiometer; Beijing; China; UHI effect; heat energy exchange; latent heat flux; net radiation; sensible heat flux; urban heat sink; winter morning; Energy exchange; Heat engines; Heat sinks; Land surface; Land surface temperature; Ocean temperature; Sea surface; Space heating; Surface discharges; Urban areas; ASTER; Beijing; heat energy exchange; urban heat sink;
Conference_Titel :
Geoscience and Remote Sensing Symposium,2009 IEEE International,IGARSS 2009
Conference_Location :
Cape Town
Print_ISBN :
978-1-4244-3394-0
Electronic_ISBN :
978-1-4244-3395-7
DOI :
10.1109/IGARSS.2009.5417679
