GSTDTAP  > 气候变化
DOI10.1002/2017GL075136
A Midwinter Minimum in North Atlantic Storm Track Intensity in Years of a Strong Jet
Afargan, H.; Kaspi, Y.
2017-12-28
发表期刊GEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
EISSN1944-8007
出版年2017
卷号44期号:24
文章类型Article
语种英语
国家Israel
英文摘要

This study investigates the occurrence of a midwinter suppression in synoptic eddy activity within the North Atlantic storm track. It is found that eddy kinetic energy over the Atlantic is reduced during winter relative to fall and spring, despite the stronger wintertime jet and enhanced baroclinicity. This behavior is similar to the well-known Pacific midwinter minimum, yet the reduction over the Atlantic is smaller and persists for a shorter period. To examine the conditions favorable for this phenomenon, we present an analysis of years with stronger jet intensity versus years of weaker jets over the Atlantic and Pacific basins. When the wintertime jet is stronger, the midwinter suppression of eddy activity is more pronounced, and the jet is more equatorward. Since the climatological Atlantic jet is weaker relative to the Pacific jet, the conditions for a midwinter suppression in the Atlantic are generally less favorable, yet a midwinter suppression often occurs in years of a strong jet.


英文关键词storm track atmospheric dynamics seasonal variability subtropical jet eddy kinetic energy midwinter minimum
领域气候变化
收录类别SCI-E
WOS记录号WOS:000422954700002
WOS关键词EDDY ACTIVITY ; PACIFIC ; SUPPRESSION ; VARIABILITY ; HEMISPHERE ; GCM ; BAROCLINICITY ; OSCILLATION ; CIRCULATION ; GROWTH
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
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/26469
专题气候变化
作者单位Weizmann Inst Sci, Dept Earth & Planetary Sci, Rehovot, Israel
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GB/T 7714
Afargan, H.,Kaspi, Y.. A Midwinter Minimum in North Atlantic Storm Track Intensity in Years of a Strong Jet[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(24).
APA Afargan, H.,&Kaspi, Y..(2017).A Midwinter Minimum in North Atlantic Storm Track Intensity in Years of a Strong Jet.GEOPHYSICAL RESEARCH LETTERS,44(24).
MLA Afargan, H.,et al."A Midwinter Minimum in North Atlantic Storm Track Intensity in Years of a Strong Jet".GEOPHYSICAL RESEARCH LETTERS 44.24(2017).
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