气候变化领域集成服务门户(CCPortal): Surface deposition of marine fog and its treatment in the Weather Research and Forecasting (WRF) model

CCPortal

DOI	10.5194/acp-21-14687-2021
	Surface deposition of marine fog and its treatment in the Weather Research and Forecasting (WRF) model
	Taylor P.A.; Chen Z.; Cheng L.; Afsharian S.; Weng W.; Isaac G.A.; Bullock T.W.; Chen Y.
发表日期	2021
ISSN	1680-7316
起始页码	14687
结束页码	14702
卷号	21 期号:19
英文摘要	There have been many studies of marine fog, some using Weather Research and Forecasting (WRF) and other models. Several model studies report overpredictions of near-surface liquid water content (Qc), leading to visibility estimates that are too low. This study has found the same. One possible cause of this overestimation could be the treatment of a surface deposition rate of fog droplets at the underlying water surface. Most models, including the Advanced Research Weather Research and Forecasting (WRF-ARW) Model, available from the National Center for Atmospheric Research (NCAR), take account of gravitational settling of cloud droplets throughout the domain and at the surface. However, there should be an additional deposition as turbulence causes fog droplets to collide and coalesce with the water surface. A water surface, or any wet surface, can then be an effective sink for fog water droplets. This process can be parameterized as an additional deposition velocity with a model that could be based on a roughness length for water droplets, z0c, that may be significantly larger than the roughness length for water vapour, z0q. This can be implemented in WRF either as a variant of the Katata scheme for deposition to vegetation or via direct modifications in boundary-layer modules. © Copyright:
语种	英语
scopus关键词	atmospheric deposition; atmospheric modeling; cloud droplet; deposition velocity; fog; water content; weather forecasting
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246534
作者单位	Centre for Research in Earth and Space Science, Lassonde School of Engineering, York University, Toronto, ON M3J 1P3, Canada; Weather Impacts Consulting Incorporated, 20 Pine Ridge Trail, Barrie, ON L4M 4Y8, Canada; Met-Ocean and Digital Environment Solutions, 133 Crosbie Road, St. John's, NL A1B 4A5, Canada
推荐引用方式 GB/T 7714	Taylor P.A.,Chen Z.,Cheng L.,et al. Surface deposition of marine fog and its treatment in the Weather Research and Forecasting (WRF) model[J],2021,21(19).
APA	Taylor P.A..,Chen Z..,Cheng L..,Afsharian S..,Weng W..,...&Chen Y..(2021).Surface deposition of marine fog and its treatment in the Weather Research and Forecasting (WRF) model.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(19).
MLA	Taylor P.A.,et al."Surface deposition of marine fog and its treatment in the Weather Research and Forecasting (WRF) model".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.19(2021).