DOI: 10.1002/jgrd.50850
论文题名: A comparison between the effects of artificial land cover and anthropogenic heat on a localized heavy rain event in 2008 in Zoshigaya, Tokyo, Japan
作者: Souma K. ; Tanaka K. ; Suetsugi T. ; Sunada K. ; Tsuboki K. ; Shinoda T. ; Wang Y. ; Sakakibara A. ; Hasegawa K. ; Moteki Q. ; Nakakita E.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 20 起始页码: 11600
结束页码: 11610
语种: 英语
英文关键词: anthropogenic heat
; artificial land cover
; cloud-resolving model
; land-atmosphere interaction
; localized heavy rain
; urban activities
Scopus关键词: Experiments
; Anthropogenic heat
; Cloud resolving model
; Heavy rains
; Land cover
; Land-atmosphere interactions
; urban activities
; Rain
; anthropogenic effect
; climate modeling
; comparative study
; drainage network
; experimental study
; heat island
; land cover
; nature-society relations
; precipitation intensity
; wind profile
; Honshu
; Japan
; Kanto
; Tokyo [Kanto]
; Tokyo [Tokyo (PRF)]
英文摘要: On 5 August 2008, a localized heavy rainfall event caused a rapid increase in drainpipe discharge, which killed five people working in a drainpipe near Zoshigaya, Tokyo. This study compared the effects of artificial land cover and anthropogenic heat on this localized heavy rainfall event based on three ensemble experiments using a cloud-resolving model that includes realistic urban features. The first experiment CTRL (control) considered realistic land cover and urban features, including artificial land cover, anthropogenic heat, and urban geometry. In the second experiment NOAH (no anthropogenic heat), anthropogenic heat was ignored. In the third experiment NOLC (no land cover), urban heating from artificial land cover was reduced by keeping the urban geometry but with roofs, walls, and roads of artificial land cover replaced by shallow water. The results indicated that both anthropogenic heat and artificial land cover increased the amount of precipitation and that the effect of artificial land cover was larger than that of anthropogenic heat. However, in the middle stage of the precipitation event, the difference between the two effects became small. Weak surface heating in NOAH and NOLC reduced the near-surface air temperature and weakened the convergence of horizontal wind and updraft over the urban areas, resulting in a reduced rainfall amount compared with that in CTRL. Key Points Effects of land cover and anthropogenic heat on a rainfall were investigated Overall, land cover effect exceeded anthropogenic heat effect in this rainfall In the middle of rainfall, the difference between the two effects became small ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63222
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1F7 Kogyo-kaikan, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan; Disaster Prevention Research Institute, Kyoto University, Uji, Japan; Hydrospheric Atmospheric Research Center, Nagoya University, Nagoya, Japan; International Pacific Research Center, School of Ocean and Earth Science and Technology, University of Hawaii at Manoa, Honolulu HI, United States; ChudenCTI Co., Ltd, Nagoya, Japan; Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan
Recommended Citation:
Souma K.,Tanaka K.,Suetsugi T.,et al. A comparison between the effects of artificial land cover and anthropogenic heat on a localized heavy rain event in 2008 in Zoshigaya, Tokyo, Japan[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(20)