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基于气温日较差的城市热岛强度指标初探

李庆祥 黄嘉佑 董文杰

大气科学学报2009,Vol.32Issue(4):530-535,6.
大气科学学报2009,Vol.32Issue(4):530-535,6.

基于气温日较差的城市热岛强度指标初探

An Urban Heat Island Intensity Index Based on Temperature Diurnal Range

李庆祥 1黄嘉佑 2董文杰3

作者信息

  • 1. 中国科学院大气物理研究所,北京,100049
  • 2. 国家气象信息中心,北京,100081
  • 3. 北京大学物理学院大气科学系,北京,100871
  • 折叠

摘要

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.

关键词

城市化/季节温度/热岛强度

Key words

urbanization / seasonal temperature/ urban heat island intensity

分类

天文与地球科学

引用本文复制引用

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].大气科学学报,2009,32(4):530-535,6.

基金项目

国家自然科学基金资助项目(40605021) (40605021)

科技部基础条件平台项目(2005DKA31700-01) (2005DKA31700-01)

大气科学学报

OA北大核心

1674-7097

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