Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-017-3636-7 |
Is the poleward migration of tropical cyclone maximum intensity associated with a poleward migration of tropical cyclone genesis? | |
Daloz, Anne Sophie1; Camargo, Suzana J.2 | |
2018 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2018 |
卷号 | 50页码:705-715 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | A recent study showed that the global average latitude where tropical cyclones achieve their lifetime-maximum intensity has been migrating poleward at a rate of about one-half degree of latitude per decade over the last 30 years in each hemisphere. However, it does not answer a critical question: is the poleward migration of tropical cyclone lifetime-maximum intensity associated with a poleward migration of tropical cyclone genesis? In this study we will examine this question. First we analyze changes in the environmental variables associated with tropical cyclone genesis, namely entropy deficit, potential intensity, vertical wind shear, vorticity, skin temperature and specific humidity at 500 hPa in reanalysis datasets between 1980 and 2013. Then, a selection of these variables is combined into two tropical cyclone genesis indices that empirically relate tropical cyclone genesis to large-scale variables. We find a shift toward greater (smaller) average potential number of genesis at higher (lower) latitudes over most regions of the Pacific Ocean, which is consistent with a migration of tropical cyclone genesis towards higher latitudes. We then examine the global best track archive and find coherent and significant poleward shifts in mean genesis position over the Pacific Ocean basins. |
英文关键词 | Tropical cyclone genesis Poleward migration Tropical cyclone genesis index Observations |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000422908700044 |
WOS关键词 | WESTERN NORTH PACIFIC ; ATLANTIC ; MODEL ; INDEX ; VARIABILITY ; PERFORMANCE ; VENTILATION ; HURRICANES ; PARAMETER ; CMIP5 |
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/36413 |
专题 | 气候变化 |
作者单位 | 1.Univ Wisconsin, Space & Sci Engn Ctr, 1225 West Dayton St, Madison, WI 53706 USA; 2.Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY USA |
推荐引用方式 GB/T 7714 | Daloz, Anne Sophie,Camargo, Suzana J.. Is the poleward migration of tropical cyclone maximum intensity associated with a poleward migration of tropical cyclone genesis?[J]. CLIMATE DYNAMICS,2018,50:705-715. |
APA | Daloz, Anne Sophie,&Camargo, Suzana J..(2018).Is the poleward migration of tropical cyclone maximum intensity associated with a poleward migration of tropical cyclone genesis?.CLIMATE DYNAMICS,50,705-715. |
MLA | Daloz, Anne Sophie,et al."Is the poleward migration of tropical cyclone maximum intensity associated with a poleward migration of tropical cyclone genesis?".CLIMATE DYNAMICS 50(2018):705-715. |
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