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Rapid urbanization and changes in spatiotemporal characteristics of precipitation in Beijing metropolitan area

Xiaomeng Song, Jianyun Zhang, Amir AghaKouchak, Shouraseni Sen Roy, Yunqing Xuan Orcid Logo, Guoqing Wang, Ruimin He, Xiaojun Wang, Cuishan Liu

Journal of Geophysical Research: Atmospheres, Volume: 119, Issue: 19, Pages: 11250 - 11271

Swansea University Author: Yunqing Xuan Orcid Logo

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DOI (Published version): 10.1002/2014JD022084

Abstract

This study investigates changes in temporal trends and spatial patterns of precipitation in Beijing over the last six decades. These changes are discussed in the context of rapid urbanization and the growing imbalance between water supply and demand in Beijing. We observed significant decreases in p...

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Published in: Journal of Geophysical Research: Atmospheres
ISSN: 2169-897X
Published: 2014
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URI: https://cronfa.swan.ac.uk/Record/cronfa21109
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spelling 2021-01-07T16:32:59.5526710 v2 21109 2015-05-06 Rapid urbanization and changes in spatiotemporal characteristics of precipitation in Beijing metropolitan area 3ece84458da360ff84fa95aa1c0c912b 0000-0003-2736-8625 Yunqing Xuan Yunqing Xuan true false 2015-05-06 CIVL This study investigates changes in temporal trends and spatial patterns of precipitation in Beijing over the last six decades. These changes are discussed in the context of rapid urbanization and the growing imbalance between water supply and demand in Beijing. We observed significant decreases in precipitation amounts from 1950 to 2012, with the annual precipitation decreasing by 32% at a decadal rate of 28.5 mm. In particular, precipitation decrease is more pronounced in the summer and warm seasons when water use is at its seasonal peak. We further analyzed hourly precipitation data from 43 rain gauges between 1980 and 2012 to examine the spatiotemporal characteristics of both precipitation amount and intensity across six distinct subregions in Beijing. No significant spatial variations in precipitation changes were identified, but slightly greater amounts of precipitation were noted in the urban areas (plains) than in the surrounding suburbs (mountains), due to the effect of urbanization and topography. Precipitation intensity has increased substantially, especially at the hourly duration, as evidenced by the more frequent occurrence of extreme storms. The observed decreased water availability and the increase in extreme weather events require more integrated water management, particularly given the expectation of a warmer and more variable climate, the continued rapid growth of the Beijing metropolis, and the intensifying conflict between water supply and demand. Journal Article Journal of Geophysical Research: Atmospheres 119 19 11250 11271 2169-897X 16 10 2014 2014-10-16 10.1002/2014JD022084 COLLEGE NANME Civil Engineering COLLEGE CODE CIVL Swansea University 2021-01-07T16:32:59.5526710 2015-05-06T13:49:23.9411060 College of Engineering Engineering Xiaomeng Song 1 Jianyun Zhang 2 Amir AghaKouchak 3 Shouraseni Sen Roy 4 Yunqing Xuan 0000-0003-2736-8625 5 Guoqing Wang 6 Ruimin He 7 Xiaojun Wang 8 Cuishan Liu 9 0021109-10052016114300.pdf JGR_Final_revision_Precipitation_Beijing_[6022077].pdf 2016-05-10T11:43:00.2400000 Output 10989792 application/pdf Accepted Manuscript true 2016-05-10T00:00:00.0000000 true
title Rapid urbanization and changes in spatiotemporal characteristics of precipitation in Beijing metropolitan area
spellingShingle Rapid urbanization and changes in spatiotemporal characteristics of precipitation in Beijing metropolitan area
Yunqing Xuan
title_short Rapid urbanization and changes in spatiotemporal characteristics of precipitation in Beijing metropolitan area
title_full Rapid urbanization and changes in spatiotemporal characteristics of precipitation in Beijing metropolitan area
title_fullStr Rapid urbanization and changes in spatiotemporal characteristics of precipitation in Beijing metropolitan area
title_full_unstemmed Rapid urbanization and changes in spatiotemporal characteristics of precipitation in Beijing metropolitan area
title_sort Rapid urbanization and changes in spatiotemporal characteristics of precipitation in Beijing metropolitan area
author_id_str_mv 3ece84458da360ff84fa95aa1c0c912b
author_id_fullname_str_mv 3ece84458da360ff84fa95aa1c0c912b_***_Yunqing Xuan
author Yunqing Xuan
author2 Xiaomeng Song
Jianyun Zhang
Amir AghaKouchak
Shouraseni Sen Roy
Yunqing Xuan
Guoqing Wang
Ruimin He
Xiaojun Wang
Cuishan Liu
format Journal article
container_title Journal of Geophysical Research: Atmospheres
container_volume 119
container_issue 19
container_start_page 11250
publishDate 2014
institution Swansea University
issn 2169-897X
doi_str_mv 10.1002/2014JD022084
college_str College of Engineering
hierarchytype
hierarchy_top_id collegeofengineering
hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
document_store_str 1
active_str 0
description This study investigates changes in temporal trends and spatial patterns of precipitation in Beijing over the last six decades. These changes are discussed in the context of rapid urbanization and the growing imbalance between water supply and demand in Beijing. We observed significant decreases in precipitation amounts from 1950 to 2012, with the annual precipitation decreasing by 32% at a decadal rate of 28.5 mm. In particular, precipitation decrease is more pronounced in the summer and warm seasons when water use is at its seasonal peak. We further analyzed hourly precipitation data from 43 rain gauges between 1980 and 2012 to examine the spatiotemporal characteristics of both precipitation amount and intensity across six distinct subregions in Beijing. No significant spatial variations in precipitation changes were identified, but slightly greater amounts of precipitation were noted in the urban areas (plains) than in the surrounding suburbs (mountains), due to the effect of urbanization and topography. Precipitation intensity has increased substantially, especially at the hourly duration, as evidenced by the more frequent occurrence of extreme storms. The observed decreased water availability and the increase in extreme weather events require more integrated water management, particularly given the expectation of a warmer and more variable climate, the continued rapid growth of the Beijing metropolis, and the intensifying conflict between water supply and demand.
published_date 2014-10-16T03:31:29Z
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score 10.896665