气候变化领域集成服务门户(CCPortal): A three-dimensional perspective on extratropical cyclone impacts

CCPortal

DOI	10.2196/10.1175/JCLI-D-19-0445.1
	A three-dimensional perspective on extratropical cyclone impacts
	Pepler A.; Dowdy A.
发表日期	2020
ISSN	0894-8755
起始页码	5635
结束页码	5649
卷号	33 期号:3
英文摘要	Cyclones can be identified from gridded pressure data at different levels of the troposphere, with vertical structure known to influence the temporal development and impacts of midlatitude cyclones. However, studies of midlatitude cyclones typically focus on cyclones identified at a single atmospheric level. This paper examines how the frequency of vertically organized or deep cyclones varies around the world, with a focus on southeastern Australia. About 50% of global cyclones identified from mean sea level pressure show a coherent vertical structure extending to at least 500 hPa, based on ERA-Interim reanalysis data, and shallow cyclones are most common in the global midlatitudes. Using a combination of reanalysis data and satellite-based rainfall and lightning, we show that in southeast Australia deep cyclones have higher intensities, longer durations, and more severe winds and rainfall than either shallow surface cyclones or upper-level cyclones with no surface low, motivating a three-dimensional approach for future cyclone analyses. © 2020 American Meteorological Society.
英文关键词	Rain; Sea level; Atmospheric levels; Extratropical cyclones; Mean sea level pressures; Midlatitude cyclones; South-eastern Australia; Southeast australia; Temporal development; Vertical structures; Storms; climate effect; extratropical cyclone; lightning; rainfall; satellite data; sea level pressure; three-dimensional modeling; Australia
语种	英语
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/171253
作者单位	Australian Bureau of Meteorology, Melbourne, VIC, Australia
推荐引用方式 GB/T 7714	Pepler A.,Dowdy A.. A three-dimensional perspective on extratropical cyclone impacts[J],2020,33(3).
APA	Pepler A.,&Dowdy A..(2020).A three-dimensional perspective on extratropical cyclone impacts.Journal of Climate,33(3).
MLA	Pepler A.,et al."A three-dimensional perspective on extratropical cyclone impacts".Journal of Climate 33.3(2020).