globalchange  > 气候减缓与适应
DOI: 10.1002/2017JD027587
Scopus记录号: 2-s2.0-85041010169
论文题名:
Identification of Tropical-Extratropical Interactions and Extreme Precipitation Events in the Middle East Based On Potential Vorticity and Moisture Transport
作者: de Vries A.J.; Ouwersloot H.G.; Feldstein S.B.; Riemer M.; El Kenawy A.M.; McCabe M.F.; Lelieveld J.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期:2
起始页码: 861
结束页码: 881
语种: 英语
英文关键词: algorithm ; atmospheric rivers ; heavy rainfall ; integrated vapor transport ; Rossby wave breaking ; stratospheric intrusions
Scopus关键词: algorithm ; flooding ; identification method ; potential vorticity ; precipitation (climatology) ; precipitation intensity ; rainfall ; river ; Rossby wave ; socioeconomic impact ; stratosphere ; water vapor ; wave breaking ; Middle East ; Saudi Arabia
英文摘要: Extreme precipitation events in the otherwise arid Middle East can cause flooding with dramatic socioeconomic impacts. Most of these events are associated with tropical-extratropical interactions, whereby a stratospheric potential vorticity (PV) intrusion reaches deep into the subtropics and forces an incursion of high poleward vertically integrated water vapor transport (IVT) into the Middle East. This study presents an object-based identification method for extreme precipitation events based on the combination of these two larger-scale meteorological features. The general motivation for this approach is that precipitation is often poorly simulated in relatively coarse weather and climate models, whereas the synoptic-scale circulation is much better represented. The algorithm is applied to ERA-Interim reanalysis data (1979–2015) and detects 90% (83%) of the 99th (97.5th) percentile of extreme precipitation days in the region of interest. Our results show that stratospheric PV intrusions and IVT structures are intimately connected to extreme precipitation intensity and seasonality. The farther south a stratospheric PV intrusion reaches, the larger the IVT magnitude, and the longer the duration of their combined occurrence, the more extreme the precipitation. Our algorithm detects a large fraction of the climatological rainfall amounts (40–70%), heavy precipitation days (50–80%), and the top 10 extreme precipitation days (60–90%) at many sites in southern Israel and the northern and western parts of Saudi Arabia. This identification method provides a new tool for future work to disentangle teleconnections, assess medium-range predictability, and improve understanding of climatic changes of extreme precipitation in the Middle East and elsewhere. ©2017. 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/114652
Appears in Collections:气候减缓与适应

Files in This Item:

There are no files associated with this item.


作者单位: Atmospheric Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany; Department of Meteorology, Pennsylvania State University, University Park, PA, United States; Institut für Physik der Atmosphäre, University of Mainz, Mainz, Germany; Department of Geography, Mansoura University, Mansoura, Egypt; Water Desalination and Reuse Center, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Jeddah, Saudi Arabia; Energy, Environment and Water Research Center, Cyprus Institute, Nicosia, Cyprus

Recommended Citation:
de Vries A.J.,Ouwersloot H.G.,Feldstein S.B.,et al. Identification of Tropical-Extratropical Interactions and Extreme Precipitation Events in the Middle East Based On Potential Vorticity and Moisture Transport[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(2)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[de Vries A.J.]'s Articles
[Ouwersloot H.G.]'s Articles
[Feldstein S.B.]'s Articles
百度学术
Similar articles in Baidu Scholar
[de Vries A.J.]'s Articles
[Ouwersloot H.G.]'s Articles
[Feldstein S.B.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[de Vries A.J.]‘s Articles
[Ouwersloot H.G.]‘s Articles
[Feldstein S.B.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.