违反了 PRIMARY KEY 约束 'PK_t_counter'。不能在对象 'dbo.t_counter' 中插入重复键。 语句已终止。 短期大规模人口流动对上海市城市热岛效应的影响-Effects of Short-term Massive Human Migration during the Chinese New Year Holiday on the Urban Heat Island in Shanghai
doi:  10.3878/j.issn.1006-9585.2017.17041
短期大规模人口流动对上海市城市热岛效应的影响

Effects of Short-term Massive Human Migration during the Chinese New Year Holiday on the Urban Heat Island in Shanghai
摘要点击 87  全文点击 28  投稿时间:2017-03-15  最后修改时间:2017-09-09
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基金:  国家自然科学基金重点项目(41430635);江苏高校优势学科建设工程资助项目
中文关键词:  大规模人口流动,城市热岛效应,上海
英文关键词:  Massive Human Migration, urban heat island, Shanghai
     
作者中文名作者英文名单位
黄群芳Qunfang Huang南京师范大学地理科学学院
陆玉麒Yuqi Lu南京师范大学地理科学学院
引用:黄群芳,陆玉麒..短期大规模人口流动对上海市城市热岛效应的影响[J].气候与环境研究
Citation:Qunfang Huang,Yuqi Lu..Effects of Short-term Massive Human Migration during the Chinese New Year Holiday on the Urban Heat Island in Shanghai[J].Climatic and Environmental Research(in Chinese)
中文摘要:
      城市热岛效应是一种非常重要的局地气候现象,随着全球变暖和城市化快速发展,城市热岛效应受到越来越多的关注和研究。以往的研究表明人口聚集和人口数量对城市热岛效应和区域城市气候会产生显著的影响。但是,人口短期的快速迁移流动对城市气候是否存在影响以及影响的程度多大尚不清楚。本文选择国际化大都市上海,利用世界上每年最大规模的人类迁徙—春节人口流动来探讨人口短期快速流动对城市热岛效应的影响。研究结果表明,2000-2015年上海市春节周日最高温、日均温和日最低温城市热岛强度分别为0.35、0.90和1.53℃,相对于背景场(春节前2-4周和春节后2-4周的平均值),分别低了0.16、0.11和0.15℃,相对变化分别为31.4%、10.9%和8.9%。由此可见,人口短期快速迁移流动是影响热岛效应和城市气候一个重要因素,但是人口流动对城市热岛效应的影响是复杂的,其效应与气候背景、天气状况、城市规模、城市人口流动特征及分布甚至城市烟花爆竹燃放(通过影响气溶胶、云量及废热影响城市热岛效应)等因素交织在一起,未来仍需开展进一步的深入研究。
Abstract:
      Urban heat island (UHI) is a very important local climate phenomenon. With the rapid development of global warming and urbanization, UHI effect has received more and more attention and research. Previous studies have shown that population aggregation and population size have a significant impact on UHI effect and regional urban climate. However, whether or to what extent the massive human migration can affect the urban climate remains unclear. Taking the world’s largest annual human migration-the population movements around the Chinese New Year (CNY) as example, we investigated the effects of massive human migration on UHI during the CNY holiday for the period of 2000-2015 in Shanghai. It was found that the UHI effects expressed as daily maximum (ΔUHIImax), mean (ΔUHIImean) and minimum (ΔUHIImin) surface temperature difference between urban and nearby rural sations averaged over the period 2000-2015 during the CNY week, were 0.35℃, 0.90℃ and 1.53℃, respectively; and these values were 0.16℃ (31.4%), 0.11℃ (10.9%) and 0.15℃ (8.9%) lower than those during the background period (2-4 weeks before and 2-4 weeks after the CNY week), respectively. Our findings highlight the important role of massive human migration on urban climate based on a case study in Shanghai. However, the results also indicate that its influences are complex, which are often intertwined with local background climate, weather condition, city size, the characteristics and pattern of human migration and even fireworks prohibition (by way of impacting the aerosol, cloud cover and waste heat release), therefore future research on this area is needed.
主办单位:中国科学院大气物理研究所 单位地址:北京市9804信箱
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