气象与环境学报2025，Vol.41Issue(1)：22-34,13.DOI:10.3969/j.issn.1673-503X.2025.01.003
地表覆盖变化和人类活动对上海郊区地表能量平衡影响的模拟评估
Assessing the impact of land cover changes and human activities on simulated surface energy balance in suburban Shanghai
摘要
Abstract
Based on the observation data of radiation and heat flux during summer in Fengxian,a suburban area in Shanghai,Surface Urban Energy and Water Balance Scheme(SUEWS)and its sensitivity to surface cover and hu-man activities were evaluated.The results indicated that the model can well reproduce the diurnal variation of radi-ation flux,and can simulate the diurnal variation and magnitude of sensible heat flux and latent heat flux well.By comparing the average Bowen ratio of dry and wet months in summer,it is found that the Bowen ratio of dry months(0.74)is close to twice that of wet months(0.40),indicating that air humidity has a significant impact on heat fluxes.The sensitivity tests of several groups of underlying surface coverage show that compared with trees,sensible heat flux and latent heat flux simulated by SUEWS are more sensitive to grass area.When the natural sur-face coverage is constant,the Bowen ratio decreases significantly with the increase in grass area.When the popula-tion density increases,the simulated anthropogenic heat flux significantly increases,resulting in a significant in-crease in the simulated sensible heat flux and Bowen ratio.关键词
城市地表能量平衡模式/地表覆盖变化/波文比/上海郊区Key words
Urban surface energy balance model/Surface cover change/Bowen ratio/Shanghai suburbs分类
环境科学引用本文复制引用
王正大,敖翔宇,支星,徐相明..地表覆盖变化和人类活动对上海郊区地表能量平衡影响的模拟评估[J].气象与环境学报,2025,41(1):22-34,13.基金项目
国家自然科学基金项目(42005077、U214220076)和上海市自然科学基金(23ZR1456700)共同资助. （42005077、U214220076）
