气象2026，Vol.52Issue(8)：959-973,15.DOI:10.7519/j.issn.1000-0526.2026.041601
三参数云微物理方案对浙江沿海一次海雾过程的数值试验研究
Numerical Experiment of a Sea Fog Event Along the Coast of Zhejiang Province Using Three-Moment Cloud Microphysics Scheme
摘要
Abstract
To analyze the impact of the three-moment cloud microphysics scheme IAP-LACS on the simula-tion of sea fog along the coast of Zhejiang Province,this paper selects two two-moment cloud microphysics schemes(Morrison05 and Thompson08)from the WRF model for comparison.A high-concentration,wide-range,and high-impact sea fog event along the coast of Zhejiang in April 2021 is simulated and ana-lyzed by these schemes.Moreover,Stoelinga-Warner(SW99)algorithm and NOAA/FSL algorithm are used to conduct visibility diagnosis.The results indicate that the three schemes can all simulate the occurrence of this sea fog event,but differences remain in terms of fog intensity and spatial extent.The IAP-LACS scheme performs best in simulating both the spatial distribution and intensity of the fog,achieving the highest TS score.The FSL algorithm outperforms the SW99 algorithm in diagnosing the spatial extent of the fog but is less accurate in representing its intensity.The IAP-LACS scheme can more accurately simu-late the large-value areas of low-level cloud water content in the Zhoushan Islands and the Taizhou-Wenzhou coastal region.It can also better capture the magnitude and increasing trend of cloud water con-tent along the Sanshan Sluice coastal area from 22:00 BT 1 to 00:00 BT 2 April.The improvement in sim-ulating low-level cloud water content by the IAP-LACS scheme is a key factor in enhancing the forecast ac-curacy of this sea fog event.Compared to the other two schemes,the IAP-LACS scheme has the advantage of providing cloud droplet number concentration output.The output of visibility diagnostic scheme based on both cloud droplet number concentration and cloud water content results is closer to observations in terms of fog extent and intensity.关键词
海雾/IAP-LACS三参数云微物理方案/能见度诊断算法/数值试验Key words
sea fog/IAP-LACS three-moment cloud microphysics scheme/visibility diagnosis algorithm/numerical experiment分类
天文与地球科学引用本文复制引用
周炳君,孙继明,钱燕珍,邓玮,王健捷,徐迪锋..三参数云微物理方案对浙江沿海一次海雾过程的数值试验研究[J].气象,2026,52(8):959-973,15.基金项目
宁波市公益性科技计划项目(2022S181)、宁波市重点研发计划暨"揭榜挂帅"项目(2023Z139)、宁波市气象局重点项目(NBQX2024002A)、浙江省"尖兵""领雁"研发攻关计划项目(2024C03256)和宁波市气象台院士工作站共同资助 （2022S181）
