首页 | 本学科首页   官方微博 | 高级检索  
     检索      

城市热岛时空特征及其影响因素
引用本文:肖荣波,欧阳志云,李伟峰,张兆明,王效科.城市热岛时空特征及其影响因素[J].气象科学,2007,27(2):230-236.
作者姓名:肖荣波  欧阳志云  李伟峰  张兆明  王效科
作者单位:1. 中国科学院生态环境研究中心系统生态重点实验室,北京,100085
2. 中国科学院中国遥感卫星地面站,北京,100086
基金项目:中国科学院知识创新工程项目
摘    要:城市热岛强度呈周期性和非周期性交叉性时间变化,水平分布呈现单中心式、多中心、条状、辐射状、格网状等多种格局形式,同时具有明显的立体空间分布特征。城市热岛的形成原因及影响因素诸多,主要归纳为人为热量释放、下垫面性质和结构、植被减少、大气污染、城市格局、天气状况等。

关 键 词:城市热岛  时空格局  下垫面
收稿时间:2005-03-07
修稿时间:2005-06-14

SPATIAL-TEMPORAL DISTRIBUTION AND CAUSES OF URBAN HEAT ISLANDS
Xiao Rongbo,Ouyang Zhiyun,Li Weifeng,Zhang Zhaoming and Wang Xiaoke.SPATIAL-TEMPORAL DISTRIBUTION AND CAUSES OF URBAN HEAT ISLANDS[J].Scientia Meteorologica Sinica,2007,27(2):230-236.
Authors:Xiao Rongbo  Ouyang Zhiyun  Li Weifeng  Zhang Zhaoming and Wang Xiaoke
Institution:1.Research Center for Eco-Environmental Sciences ,Chinese Academy of Sciences ,Beijing 100085;2.China Remote Sensing Satellite Ground Station ,Chinese Academy of Sciences ,Beijing 100086
Abstract:The intensity of Urban Heat Islands(UHI) changes due to seasonal and non-seasonal characteristics,which can vary slightly from hour to hour and significantly from daytime to nighttime.UHI can exhibit single-center,multi-center,strip,radiation and reticulation horizontal spatial distribution patterns,while vertical spatial distributions are very obvious.Many of the findings regarding relationships between the intensity of the urban heat island and various effects are summarized in this review paper.The main causes are listed as:(1) heating emission from buildings(i.e.commercial and residential heating);(2) absorption and radiation qualities of surface materials(i.e.asphalt,concrete,pavement) and building materials;(3) minimal urban vegetation and subsequent low evapotranspiration rates;(4) atmospheric pollution;(5) urban morphology;(6) variable sensitivity to cloud cover,wind,and local topography.
Keywords:Urban heat island Spatial-temporal distribution Surface materials Urban morphology
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《气象科学》浏览原始摘要信息
点击此处可从《气象科学》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号