CCPortal
DOI10.1029/2018JD029574
How Will a Warming Climate Affect the Benguela Coastal Low-Level Wind Jet?
Lima, Daniela C. A.1; Soares, Pedro M. M.1; Semedo, Alvaro1,2; Cardoso, Rita M.1; Cabos, William3; Sein, Dmitry V.4,5
发表日期2019
ISSN2169-897X
EISSN2169-8996
卷号124期号:9页码:5010-5028
英文摘要

The strong coastal upwelling associated to the Benguela eastern boundary upwelling system makes the ocean along coast of this current one of the most productive ecosystems in the world. The Benguela Coastal Low-Level Jet (BCLLJ) is one of the most important mesoscale feature that shape the climate of this region. The main synoptic forcing of the BCLLJ is the Angola thermal low over land and the St. Helen anticyclone over the ocean, resulting in southwesterly winds along the coast. This study investigates how the BCLLJ might change due to climate warming, with the help of uncoupled and coupled simulations from a 25-km horizontal resolution regional climate model (ROM). In general, the coupled simulation displays the best performance in representing the present time near-surface wind speed, with a decrease on the known warm bias of sea surface temperature in the Benguela eastern boundary upwelling system region. The analysis of the projected changes of the BCLLJ climate toward the end of the 21st century (2070-2099), following the RCP8.5 emissions scenario, shows an increase in the frequency of the BCLLJ occurrence along the southern area with higher changes in the coupled simulation (between 6% and 8%). These changes are related to a southerly shift of the St. Helen High, which intensifies the flow offshore the west coast of South Africa and causes a sharpening of the land-sea thermal contrasts. However, during spring, associated with the decrease in near-surface wind speed due to higher sea surface temperatures, the future frequency and intensity of the BCLLJ are lower.


WOS研究方向Meteorology & Atmospheric Sciences
来源期刊JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/97841
作者单位1.Univ Lisbon, Inst Dom Luiz, Fac Ciencias, Lisbon, Portugal;
2.IHE Delft, Dept Water Sci & Engn, Delft, Netherlands;
3.Univ Alcala De Henares, Dept Phys & Math, Madrid, Spain;
4.Alfred Wegener Inst Polar & Marine Res, Bremerhaven, Germany;
5.Russian Acad Sci, Shirshov Inst Oceanol, Moscow, Russia
推荐引用方式
GB/T 7714
Lima, Daniela C. A.,Soares, Pedro M. M.,Semedo, Alvaro,et al. How Will a Warming Climate Affect the Benguela Coastal Low-Level Wind Jet?[J],2019,124(9):5010-5028.
APA Lima, Daniela C. A.,Soares, Pedro M. M.,Semedo, Alvaro,Cardoso, Rita M.,Cabos, William,&Sein, Dmitry V..(2019).How Will a Warming Climate Affect the Benguela Coastal Low-Level Wind Jet?.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(9),5010-5028.
MLA Lima, Daniela C. A.,et al."How Will a Warming Climate Affect the Benguela Coastal Low-Level Wind Jet?".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.9(2019):5010-5028.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Lima, Daniela C. A.]的文章
[Soares, Pedro M. M.]的文章
[Semedo, Alvaro]的文章
百度学术
百度学术中相似的文章
[Lima, Daniela C. A.]的文章
[Soares, Pedro M. M.]的文章
[Semedo, Alvaro]的文章
必应学术
必应学术中相似的文章
[Lima, Daniela C. A.]的文章
[Soares, Pedro M. M.]的文章
[Semedo, Alvaro]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。