IDSSE OpenIR  > 深海科学研究部  > 海洋环流观测与数值模拟研究室
Ship observations and numerical simulation of the marine atmospheric boundary layer over the spring oceanic front in the northwestern South China Sea
Shi, Rui1; Chen, Ju1; Guo, Xinyu2; Zeng, Lili1; Li, Jian1; Xie, Qiang1,3; Wang, Xin1; Wang, Dongxiao1; Wang, Dongxiao(Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China)
2017-04-16
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
Volume122Issue:7Pages:3733-3753
Abstract

The response of the marine atmospheric boundary layer (MABL) structure to an oceanic front is analyzed using Global Positioning System (GPS) sounding data obtained during a survey in the northwestern South China Sea (NSCS) over a period of about 1week in April 2013. The Weather Research and Forecasting (WRF) model is used to further examine the thermodynamical mechanisms of the MABL's response to the front. The WRF model successfully simulates the change in the MABL structure across the front, which agrees well with the observations. The spatially high-pass-filtered fields of sea surface temperature (SST) and 10m neutral equivalent wind from the WRF model simulation show a tight, positive coupling between the SST and surface winds near the front. Meanwhile, the SST front works as a damping zone to reduce the enhancement of wind blowing from the warm to the cold side of the front in the lower boundary layer. Analysis of the momentum budget shows that the most active and significant term affecting horizontal momentum over the frontal zone is the adjustment of the pressure gradient. It is found that the front in the NSCS is wide enough for slowly moving air parcels to be affected by the change in underlying SST. The different thermal structure upwind and downwind of the front causes a baroclinic adjustment of the perturbation pressure from the surface to the midlayer of the MABL, which dominates the change in the wind profile across the front.

SubtypeArticle
KeywordSouth China Sea Front Marine Atmospheric Boundary Layer Wrf Model Synoptic Air-sea Coupling
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1002/2016JD026071
URL查看原文
Indexed BySCI
Language英语
WOS KeywordEastern Equatorial Pacific ; Low-level Winds ; Surface-temperature ; Seasonal Variability ; Gulf-stream ; Sst Front ; Kuroshio ; Eddies ; Model ; Perturbations
WOS SubjectMeteorology & Atmospheric Sciences
WOS IDWOS:000400172000003
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.idsse.ac.cn/handle/183446/3957
Collection深海科学研究部_海洋环流观测与数值模拟研究室
Corresponding AuthorWang, Dongxiao; Wang, Dongxiao(Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China)
Affiliation1.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China
2.Ehime Univ, Ctr Marine Environm Studies, Matsuyama, Ehime, Japan
3.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya, Peoples R China
Recommended Citation
GB/T 7714
Shi, Rui,Chen, Ju,Guo, Xinyu,et al. Ship observations and numerical simulation of the marine atmospheric boundary layer over the spring oceanic front in the northwestern South China Sea[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(7):3733-3753.
APA Shi, Rui.,Chen, Ju.,Guo, Xinyu.,Zeng, Lili.,Li, Jian.,...&Wang, Dongxiao.(2017).Ship observations and numerical simulation of the marine atmospheric boundary layer over the spring oceanic front in the northwestern South China Sea.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(7),3733-3753.
MLA Shi, Rui,et al."Ship observations and numerical simulation of the marine atmospheric boundary layer over the spring oceanic front in the northwestern South China Sea".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.7(2017):3733-3753.
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