GSTDTAP  > 地球科学
DOI10.1175/JAS-D-17-0052.1
Uncovering the Edge of the Polar Vortex
Serra, Mattia1,4; Sathe, Pratik2; Beron-Vera, Francisco3; Haller, George1
2017-11-01
发表期刊JOURNAL OF THE ATMOSPHERIC SCIENCES
ISSN0022-4928
EISSN1520-0469
出版年2017
卷号74期号:11
文章类型Article
语种英语
国家Switzerland; India; USA
英文摘要

The polar vortices play a crucial role in the formation of the ozone hole and can cause severe weather anomalies. Their boundaries, known as the vortex "edges,'' are typically identified via methods that are either frame dependent or return nonmaterial structures and, hence, are unsuitable for assessing material transport barriers. Using two-dimensional velocity data on isentropic surfaces in the Northern Hemisphere, the authors show that elliptic Lagrangian coherent structures (LCSs) identify the correct outermost material surface dividing the coherent stratospheric vortex core from the surrounding incoherent surf zone. Despite the purely kinematic construction of LCSs, the authors find a remarkable contrast in temperature and ozone concentration across the identified vortex boundary. The authors also show that potential vorticity-based methods, despite their simplicity, misidentify the correct extent of the vortex edge.


领域地球科学
收录类别SCI-E
WOS记录号WOS:000417994800020
WOS关键词TRANSPORT BARRIERS ; PLANETARY-WAVES ; ZONAL JETS ; INTERANNUAL VARIABILITY ; TOTAL OZONE ; PERMEABILITY ; STRATOSPHERE ; MODEL ; CLIMATOLOGY ; TEMPERATURE
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/29717
专题地球科学
作者单位1.Eidgenoss Tech Hsch Zurich, Inst Mech Syst, Zurich, Switzerland;
2.Indian Inst Technol, Dept Phys, Bombay, Maharashtra, India;
3.Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Miami, FL USA;
4.Harvard Univ, Paulson Sch Engn & Appl Sci, Cambridge, MA 02138 USA
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Serra, Mattia,Sathe, Pratik,Beron-Vera, Francisco,et al. Uncovering the Edge of the Polar Vortex[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2017,74(11).
APA Serra, Mattia,Sathe, Pratik,Beron-Vera, Francisco,&Haller, George.(2017).Uncovering the Edge of the Polar Vortex.JOURNAL OF THE ATMOSPHERIC SCIENCES,74(11).
MLA Serra, Mattia,et al."Uncovering the Edge of the Polar Vortex".JOURNAL OF THE ATMOSPHERIC SCIENCES 74.11(2017).
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