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高原气象 2009
Simulation of Effect of Anthropogenic Heat and Afforestation on Urban Boundary Layer Structure of Valley City in Winter
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Abstract:
To study the impact of anthropogenic heat and urban greenbelts on urban boundary layer structure of valley city in winter,we incorperate a new anthropogenic heat source into the surface energy budget and changed the land surface parameter in RAMS.The numerical simulation results show that anthropogenic heat release leads to the increase of temperature and turbulent energy.In daytime it increases the atmospheric instability,resulting in the increase of the mixed-layer height,while at nighttime it weakens the...