西安夏季和冬季城市热岛的多时间尺度变化特征

胡张保; 俞炳丰; 秦临香

doi:10.11835/j.issn.1674-4764.2010.01.021

您当前的位置：

首页 >

文章列表页 >

西安夏季和冬季城市热岛的多时间尺度变化特征

更新时间：2023-11-28

- 西安夏季和冬季城市热岛的多时间尺度变化特征
- MultiTimeScale Characteristics of Urban Heat Islandin Xi’an’s Summer and Winter
- 土木与环境工程学报（中英文） 2010年32卷第1期页码：111-115
- 作者机构：
  
  1. 西安交通大学能源与动力工程学院,西安,710049
  3. 西安市气象局业务处,西安,710016
- 作者简介：
- 基金信息：
- DOI：10.11835/j.issn.1674-4764.2010.01.021
  中图分类号：
- 纸质出版：2010
- 稿件说明：
移动端阅览
胡张保, 俞炳丰, 秦临香. 西安夏季和冬季城市热岛的多时间尺度变化特征[J]. 土木与环境工程学报（中英文）, 2010,32(1):111-115.

HU Zhangbao, YU Bingfeng, QIN Linxiang. MultiTimeScale Characteristics of Urban Heat Islandin Xi’an’s Summer and Winter[J]. Journal of Civil and Environmental Engineering, 2010, 32(1): 111-115.
胡张保, 俞炳丰, 秦临香. 西安夏季和冬季城市热岛的多时间尺度变化特征[J]. 土木与环境工程学报（中英文）, 2010,32(1):111-115. DOI： 10.11835/j.issn.1674-4764.2010.01.021.

HU Zhangbao, YU Bingfeng, QIN Linxiang. MultiTimeScale Characteristics of Urban Heat Islandin Xi’an’s Summer and Winter[J]. Journal of Civil and Environmental Engineering, 2010, 32(1): 111-115. DOI： 10.11835/j.issn.1674-4764.2010.01.021.

摘要

基于自动气象站2008年逐时气温观测资料，建立了西安市夏季和冬季城市热岛强度时间序列，采用复Morlet小波变换的方法研究了城市热岛的时间尺度（变化周期）结构及其变化特征，并利用小波方差诊断了各热岛周期振荡的强度。结果表明，冬季城市热岛的尺度结构比较简单，存在24 h和144～192 h 2个主热岛周期，夏季城市热岛的尺度结构较复杂，其主热岛周期为24 h和96～120 h。日变化和周变化是西安城市热岛的主要变化周期，强热岛主要出现在工作日，弱热岛主要出现在周末。此外，还讨论了引起城市热岛日变化和周变化的驱动因子及其形成机制。

Abstract

Based on the hourly data of air temperature observed from automatic weather stations in Xi’an

the time series of urban heat island (UHI) intensity in the summer and winter of year 2008 were set up. Complex Morlet wavelet transform was employed to analyze the time scale (variation period) structure and characteristics of UHI. And wavelet variance was used to diagnose the oscillation intensity of UHI periods. It was found that the time scale structure of UHI was simple in winter while complex in summer. The primary UHI periods were composed of 24 h and 144192 h in winter and 24 h and 96~120 h in summer. Diurnal and weekly variations of UHI were the dominant UHI periods in Xi’an. For weekly periods

intensive UHI occurred on weekdays

while weak UHI on weekend. Moreover

the causes of the diurnal and weekly periods of UHI were also employed.

关键词

Keywords

references

浏览量

1111

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

暂无数据