气候变化领域集成服务门户(CCPortal): Impact of horizontal resolution in CALMET on simulated near-surface wind fields over complex terrain during Super Typhoon Meranti (2016)

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DOI	10.1016/j.atmosres.2020.105223
	Impact of horizontal resolution in CALMET on simulated near-surface wind fields over complex terrain during Super Typhoon Meranti (2016)
	Tang S.; Huang S.; Yu H.; Gu M.; Tang J.
发表日期	2021
ISSN	0169-8095
卷号	247
英文摘要	A Weather Research and Forecasting (WRF) model simulation with 3-km horizontal grid spacing was coupled with five California Meteorological Model (CALMET) simulations with horizontal grid spacing ranging from 100 m to 3 km to investigate the impact of horizontal resolution on the simulated near-surface wind fields of Super Typhoon Meranti (2016). Assessment of the model output was conducted in two specified regions named Shisun Mountain and Shishe Mountain in Fujian Province, China. The WRF/CALMET coupled system exhibited satisfactory performance, as indicated by the reasonably large correlation coefficient (>0.4) between the simulated and observed winds. The best and second-best outcomes for 10-m wind speed were found in the simulations with horizontal grid spacing of 500 and 250 m, respectively. Specifically, the 10-m wind speed appeared sensitive to model resolution after being affected by the gale-force winds of Typhoon Meranti. For the 10-m wind direction, the best outcome at Shisun Mountain was found with 500-m horizontal grid spacing, whereas it improved continuously with higher horizontal resolution at Shishe Mountain. The wind-followed slope angle was proposed to provide new perspective for quantitative evaluation of the impact of complex terrain with different horizontal resolutions on the near-surface wind field. It is found that, irrespective of the location and model resolution, the 10-m downhill winds were generally larger than the uphill winds before and after being affected by the gale-force winds, while the winds decreased with slope angle in both uphill and downhill situation when affected by the gale-force winds of Typhoon Meranti. © 2020 Elsevier B.V.
英文关键词	CALMET; Complex terrain; Horizontal resolution; Slope angle; Typhoon Meranti
语种	英语
scopus关键词	Hurricanes; Landforms; Weather forecasting; Complex terrains; Correlation coefficient; Horizontal grid spacing; Horizontal resolution; Meteorological modeling; Near-surface winds; Quantitative evaluation; Weather research and forecasting models; Wind; complex terrain; image resolution; slope angle; typhoon; weather forecasting; wind direction; wind field; wind velocity; California; United States
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/141743
作者单位	Shanghai Typhoon Institute of China Meteorological Administration, Shanghai, 200030, China; Key Laboratory of Numerical Modeling for Tropical Cyclones, China Meteorological Administration, Shanghai, 200030, China; Guangdong Kenuo Surveying Engineering Co., LTD, Guangzhou, 510663, China; State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai, 200092, China
推荐引用方式 GB/T 7714	Tang S.,Huang S.,Yu H.,et al. Impact of horizontal resolution in CALMET on simulated near-surface wind fields over complex terrain during Super Typhoon Meranti (2016)[J],2021,247.
APA	Tang S.,Huang S.,Yu H.,Gu M.,&Tang J..(2021).Impact of horizontal resolution in CALMET on simulated near-surface wind fields over complex terrain during Super Typhoon Meranti (2016).Atmospheric Research,247.
MLA	Tang S.,et al."Impact of horizontal resolution in CALMET on simulated near-surface wind fields over complex terrain during Super Typhoon Meranti (2016)".Atmospheric Research 247(2021).