摘要
采用"自上而下"的能源清单法,研究了长株潭城市群2017年人为热排放量及其时空分布特征;同时,利用中尺度天气预报模式(Weather Research and Forecasting, WRF)及其耦合的UCM对夏冬两季分别进行数值模拟试验,定量分析了不同类型建成区人为热排放增温效应的季节性差异。结果表明:(1)长株潭2017年人为热排放总量为3.49×10^(17)J/a,平均人为热排放强度为14.22 W/m^(2),工业、建筑、交通和人体新城代谢对人为热的贡献率分别为48.15%、40%、11.3%和0.55%。(2)人为热的引入使得城市群主城区夏季和冬季的平均温度分别升高了约0.7℃和1.5℃;冬季增温效果是夏季的2倍。(3)不同密度分区人为热排放导致的增温效果不同,总的来说,工业/商业区>高密度住宅区>低密度住宅区。
Based on the "top-down" energy inventory method, the anthropogenic heat emissions and their temporal and spatial distribution characteristics of Changsha Zhuzhou Xiangtan Urban Agglomeration in 2017 were studied. At the same time, the weather research and forecasting(WRF) model and its coupled UCM are used to carry out numerical simulation experiments in summer and winter respectively, and the seasonal differences of artificial heat emission warming effects in different types of built-up areas are quantitatively analyzed. The results show that:(1) in 2017, the total anthropogenic heat emission of Changsha Zhuzhou Xiangtan was 3.49×10^(17)J/a, and the average anthropogenic heat emission intensity was 14.22 w/m^(2). The contribution rates of industry, construction, transportation and metabolism of human new towns to anthropogenic heat were 48.15%, 40%, 11.3% and 0.55%, respectively.(2) With the introduction of artificial heat, the average temperature of the main urban areas in summer and winter increased by about 0.7℃ and 1.5℃ respectively, and the effect of increasing temperature in winter was twice that in summer.(3) The effect of artificial heat emission in different density zones is different.In general, industrial/commercial area > high density residential area > low density residential area.
作者
陈一溥
郑伯红
CHEN Yi-pu;ZHENG Bo-hong(School of architecture and art,Central South University,Changsha 410075,China)
出处
《长江流域资源与环境》
CAS
CSSCI
CSCD
北大核心
2021年第7期1625-1637,共13页
Resources and Environment in the Yangtze Basin
基金
国家自然科学基金面上项目(51478470)。
关键词
人为热排放
WRF/UCM
长株潭城市群
城市热环境
anthropogenic heat emission
WRF/UCM
Chang-Zhu-Tan Urban Agglomeration
urban thermal environment
