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DOI | 10.1002/joc.6135 |
Intraseasonal modulation of spring-strong wind events associated with convection in northeastern Argentina | |
Otero, Federico1; Alvarez, Mariano S.2,3,4; Salio, Paola2,3,4; Vera, Carolina2,3,4 | |
2019-11-30 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2019 |
卷号 | 39期号:14页码:5228-5240 |
文章类型 | Article |
语种 | 英语 |
国家 | Argentina |
英文摘要 | The relationship between intraseasonal variability (IS; 10-90 days) and days which registered convection-associated strong surface wind events (CSSWE) over northeastern Argentina (NEA) was studied. The climatological behaviour of these strong wind events showed a higher duration and occurrence in austral spring. CSSWE were categorized as a function of the wet and dry phases of the spring-season intraseasonal (spring-SIS) index, which describes the activity of the leading pattern of IS-filtered outgoing longwave radiation (IS-OLR) during that season in eastern South America. A modulation of the IS variability over localized and mesoscale phenomena as the CSSWE was found, showing significant peaks of wind variability in that timescale, and especially the submonthly timescale. The CSSWE were categorized according to the phases of the spring-SIS pattern and most of them occurred before or during a wet phase, especially for the longer CSSWE. Moreover, the detection of CSSWE days during and before a dry phase was scarce. Rossby wave trains were observed to organize the circulation on intraseasonal timescales that configure regional cyclonic anomalies in such way that favours the development of CSSWE, promoting mid-level ascents over NEA and northerly advection of humidity to the region. Together with the composites of IS-OLR anomalies and the spectra of wind velocity, they support the fact that the higher-frequency IS variability is the primary influence for the development of CSSWE. |
英文关键词 | intraseasonal variability northeastern Argentina strong convective events surface winds |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000492898900002 |
WOS关键词 | LEVEL JET EAST ; SOUTH AMERICAN MODES ; VARIABILITY ; RAINFALL ; INTENSITY ; ANDES ; CYCLE ; TRMM ; CLIMATOLOGY ; CAMPAIGN |
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/225468 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Inst Argentino Nivol Glaciol & Ciencias, Mendoza, Argentina; 2.Univ Buenos Aires, Fac Ciencias Exactas Nat, Dept Ciencias Atmosfera & Oceanos DCAO FCEN UBA, Buenos Aires, DF, Argentina; 3.Univ Buenos Aires, Consejo Nacl Invest Cient & Tecn, Centro Invest Mar & Atmosfera, CIMA UBA CONICET, Buenos Aires, DF, Argentina; 4.UMI IFAECI CNRS CONICET UBA, Buenos Aires, DF, Argentina |
推荐引用方式 GB/T 7714 | Otero, Federico,Alvarez, Mariano S.,Salio, Paola,et al. Intraseasonal modulation of spring-strong wind events associated with convection in northeastern Argentina[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019,39(14):5228-5240. |
APA | Otero, Federico,Alvarez, Mariano S.,Salio, Paola,&Vera, Carolina.(2019).Intraseasonal modulation of spring-strong wind events associated with convection in northeastern Argentina.INTERNATIONAL JOURNAL OF CLIMATOLOGY,39(14),5228-5240. |
MLA | Otero, Federico,et al."Intraseasonal modulation of spring-strong wind events associated with convection in northeastern Argentina".INTERNATIONAL JOURNAL OF CLIMATOLOGY 39.14(2019):5228-5240. |
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