Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019JD031562 |
The Impact of Turbulent Diffusion Driven by Fog-Top Cooling on Sea Fog Development | |
Yang, Yue; Gao, Shanhong | |
2020-02-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
![]() |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2020 |
卷号 | 125期号:4 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Turbulent mixing driven by cloud/fog-top radiative and evaporative cooling (hereafter top-driven diffusion), including top-down mixing and top-cooling entrainment, is critical for the development of cloud/fog. Previous work mainly focused on impacts of top-driven diffusion on stratocumulus-topped planetary boundary layer (PBL) and radiation fog over land. However, its exact role in sea fog process is yet unclear. Using the Weather Research and Forecasting (WRF) model with the updated Yonsei University (YSU) PBL scheme, in which the ysu_topdown_pblmix option is responsible for the parameterization of the top-driven diffusion, the present study investigates respective effects of the top-cooling entrainment and top-down mixing on an advection fog event over the Yellow Sea that occurred on 20-21 May 2014. Evaluation of the modeling results confirms that the top-driven diffusion significantly improves the sea fog simulation. The top-cooling entrainment allows more relatively quiescent air above the fog top to mix into the sea fog layer, leading to a higher mixed layer with increased temperature and decreased humidity. With the enhancement of buoyant turbulence, the warming and dehumidifying moderately lift the sea fog bottom and reduce the false fog area. The top-down mixing performs quite well in reproducing a stable structure near the fog top, which results from the added turbulent mixing determined by a revised K profile. Note that the effect of top-driven diffusion shows high sensitivities to shortwave radiation and vertical resolution. Besides the fog-top cooling, the fog-droplet sedimentation is necessary to be included in the top-cooling entrainment. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000519227000001 |
WOS关键词 | LARGE-EDDY SIMULATION ; BOUNDARY-LAYER ; RADIATION FOG ; YELLOW SEA ; MIXED LAYERS ; MARINE FOG ; MODEL ; PREDICTION ; SCHEME ; EVENT |
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/280071 |
专题 | 气候变化 |
作者单位 | Ocean Univ China, Coll Ocean & Atmospher Sci, Key Lab Phys Oceanog, Qingdao, Peoples R China |
推荐引用方式 GB/T 7714 | Yang, Yue,Gao, Shanhong. The Impact of Turbulent Diffusion Driven by Fog-Top Cooling on Sea Fog Development[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2020,125(4). |
APA | Yang, Yue,&Gao, Shanhong.(2020).The Impact of Turbulent Diffusion Driven by Fog-Top Cooling on Sea Fog Development.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,125(4). |
MLA | Yang, Yue,et al."The Impact of Turbulent Diffusion Driven by Fog-Top Cooling on Sea Fog Development".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 125.4(2020). |
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 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Yang, Yue]的文章 |
[Gao, Shanhong]的文章 |
百度学术 |
百度学术中相似的文章 |
[Yang, Yue]的文章 |
[Gao, Shanhong]的文章 |
必应学术 |
必应学术中相似的文章 |
[Yang, Yue]的文章 |
[Gao, Shanhong]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。
修改评论