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| 基于气温日较差的城市热岛强度指标初探 | |
| 引用本文： | 李庆祥,黄嘉佑,董文杰.基于气温日较差的城市热岛强度指标初探[J].南京气象学院学报,2009,32(4):530-535. |
| 作者姓名： | 李庆祥 黄嘉佑 董文杰 |
| 作者单位： | 1. 中国科学院大气物理研究所,北京,100049;国家气象信息中心,北京,100081 2. 北京大学物理学院大气科学系,北京,100871 3. 北京师范大学地表过程与资源生态国家重点实验室,北京,100875 |
| 基金项目： | 国家自然科学基金资助项目，科技部基础条件平台项目 |
| 摘 要： | 选取1951—2004年中国东部地区9个大城市和较近距离的9个小城市，对城市逐月平均最高、最低和平均气温资料进行不同季节的城市热岛效应分析，对描述热岛效应的热岛强度指标进行研究，并提出一种基于气温日较差的新的热岛强度指标。结果表明，1980年以后，无论大、小城市，城市化的热岛影响均有所加强。大城市年热岛强度10a约增加0．20～0．34℃，小城市约增加0．14～0．20℃。大城市的热岛强度无论季节或年增加幅度均比小城市大，特别是冬、秋季，而小城市则主要表现在夏、秋季。 |
| 关 键 词： | 城市化 季节温度 热岛强度 |
An Urban Heat Island Intensity Index Based on Temperature Diurnal Range |
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| LI Qing-xiang,HUANG Jia-you,DONG Wen-jie.An Urban Heat Island Intensity Index Based on Temperature Diurnal Range[J].Journal of Nanjing Institute of Meteorology,2009,32(4):530-535. | |
| Authors: | LI Qing-xiang HUANG Jia-you DONG Wen-jie |
| Institution: | LI Qing-xiang, HUANG Jia-you, DONG Wen-jie( 1. Institute of Atmospheric Physics, China Academy of Sciences,Beijing 100049,China ; 2. National Meteorological Information Center, China Meteorological Administration, Beijing 100871, China ; 3. Department of Atmospheric Sciences, School of Physics, Peking University, Beijing 100871, China; 4. State Key Laboratory of Earth Surface Processes and Ecology Resource,Beijing Normal University,Beijing 100875,China) |
| Abstract: | Several existing urban heat island (UHI) intensity indices are examined in this paper by using the monthly average maximum, minimum, mean temperatures data in nine big cities and their nine nea-rest small cities in eastern China;then a new HUI intensity index based on temperature diurnal range (TDR) is proposed. The research results show that the effect of HUI since 1980 both in the nine big cites and nine small contrast cities has enhanced;the intensity of HUI increased about 0. 20 ～ 0. 34 ℃ per ten years in the big cities,and about 0. 14 ～ 0. 20℃ per ten years in the small cities; its increase amplitude whether on seasonal or annual time scale was larger in the big cities than in the small cities, especially in winter and autumn, while the increase amplitude in the small cities was larger in summer and autumn than in winter and spring. |
| Keywords: | urbanization seasonal temperature urban heat island intensity |
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