A climatology of extratropical transition of tropical cyclones in the western north pacific
文献类型：期刊论文
| 作者 | Zhong Lin-hao1; Hua Li-juan2; Feng Shi-de1 |
| 刊名 | Journal of tropical meteorology
 |
| 出版日期 | 2009-12-01 |
| 卷号 | 15期号:2页码:130-147 |
| 关键词 | Tropical cyclone Extratropical transition Best track Jra25, cyclone phase space, thermal structure, upper-level jet |
| ISSN号 | 1006-8775 |
| DOI | 10.3969/j.issn.1006-8775.2009.02.002 |
| 通讯作者 | Zhong lin-hao(zlh@mail.iap.ac.cn) |
| 英文摘要 | Based on best-track data and jra-25 reanalysis, a climatology of western north pacific extratropical transition (et) of tropical cyclone (tc) is presented in this paper. it was found that 35% (318 out of 912) of all tcs underwent et during 1979 - 2008. the warm-season (june through september) ets account for 64% of all et events with the most occurrence in september. the area 120 degrees e - 150 degrees e and 20 degrees n - 40 degrees n is the most favorable region for et onsets in western north pacific. the tcs experiencing et at latitudes 30 degrees n - 40 degrees n have the greatest intensity in contrast to those at other latitude bands. the distribution of et onset locations shows obviously meridional migration in different seasons. a cyclone phase space (cps) method was used to analyze the tc evolution during et. except for some cases of abnormal et at relatively high latitudes, typical phase evolution paths-along which tc firstly showed thermal asymmetry and an upper-level cold core and then lost its low-level warm core-can be used to describe the main features of et processes in western north pacific. some seasonal variations of et evolution paths in cps were also found at low latitudes south of 15 degrees n, which suggests different et onset mechanisms there. further composite analysis concluded that warm-season ets have generally two types of evolutions, but only one type in cold season (october through next may). the first type of warm-season ets has less baroclinicity due to long distance between the tc and upper-level mid-latitude system. however, significant interactions between a mid-latitude upper-level trough and tc, which either approaches or is absorbed into the trough, and tc's relations with downstream and upstream upper-level jets, are the fingerprints for both a second type of warm-season ets and almost all the cold-season ets. for each type of ets, detailed structural characteristics as well as precipitation distribution are illustrated by latitude. |
| WOS关键词 | MIDLATITUDE CIRCULATION CHARACTERISTICS ; KINETIC-ENERGY ; STORM AGNES ; LIFE-CYCLE ; PART II ; EVOLUTION ; TRANSFORMATION |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| WOS类目 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000272496200002 |
| 出版者 | JOURNAL OF TROPICAL METEOROLOGICAL PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2394824 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhong Lin-hao |
| 作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhong Lin-hao,Hua Li-juan,Feng Shi-de. A climatology of extratropical transition of tropical cyclones in the western north pacific[J]. Journal of tropical meteorology,2009,15(2):130-147. |
| APA | Zhong Lin-hao,Hua Li-juan,&Feng Shi-de.(2009).A climatology of extratropical transition of tropical cyclones in the western north pacific.Journal of tropical meteorology,15(2),130-147. |
| MLA | Zhong Lin-hao,et al."A climatology of extratropical transition of tropical cyclones in the western north pacific".Journal of tropical meteorology 15.2(2009):130-147. |
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来源：中国科学院大学
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