Ship observations and numerical simulation of the marine atmospheric boundary layer over the spring oceanic front in the northwestern South China Sea
Shi, R; Chen, J; Guo, XY; Zeng, LL; Li, J; Xie, Q; Wang, X; Wang, DX; dxwang@scsio.ac.cn
2017
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
卷号122期号:7页码:3733-3753
摘要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.
部门归属[Shi, Rui; Chen, Ju; Zeng, Lili; Li, Jian; Xie, Qiang; Wang, Xin; Wang, Dongxiao] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China; [Guo, Xinyu] Ehime Univ, Ctr Marine Environm Studies, Matsuyama, Ehime, Japan; [Xie, Qiang] Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya, Peoples R China
关键词South China Sea Front Marine Atmospheric Boundary Layer Wrf Model Synoptic Air-sea Coupling
资助项目LTO
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/16445
专题热带海洋环境国家重点实验室(LTO)
通讯作者dxwang@scsio.ac.cn
推荐引用方式
GB/T 7714
Shi, R,Chen, J,Guo, XY,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, R.,Chen, J.,Guo, XY.,Zeng, LL.,Li, J.,...&dxwang@scsio.ac.cn.(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, R,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.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Ship observations an(6140KB)期刊论文作者接受稿开放获取CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

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。