气候变化领域集成服务门户(CCPortal): Case Study of Blowing Snow Impacts on the Antarctic Peninsula Lower Atmosphere and Surface Simulated With a Snow/Ice Enhanced WRF Model

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DOI	10.1029/2020JD033936
	Case Study of Blowing Snow Impacts on the Antarctic Peninsula Lower Atmosphere and Surface Simulated With a Snow/Ice Enhanced WRF Model
	Luo L.; Zhang J.; Hock R.; Yao Y.
发表日期	2021
ISSN	2169897X
卷号	126 期号:2
英文摘要	To better capture the air-snow-ice interaction, a snow/ice enhanced Weather Research and Forecasting (WRF-ice) model has been developed. This study examines the performance of WRF-ice and its blowing snow component during a strong cyclone event from October 23 to 27, 2017 over the Antarctic Peninsula, which is characterized by a synoptic cyclone crossing the northern part of the Peninsula and an embodied mesoscale cyclone over the Weddell Sea. Evolution of the cyclone is accurately reproduced in the 5-km resolution WRF-ice simulation, and the simulated near-surface conditions agree well with station and satellite observations. Numerical simulations show that the process of blowing snow sublimation can be prominent within the lower atmosphere when the air is dry, and produces moistening and cooling effects. Over relatively warm and humid areas, cloud enhancement by blowing snow can lead to either colder or warmer surfaces because of competing effects of longwave and shortwave cloud radiative forcings. In particular, additional moisture from blowing snow sublimation can slightly intensify precipitation over the mountains. Surface energy budget analysis indicates that absorbed shortwave (Sa), incoming longwave (Ld), and outgoing longwave (Lu) are dominant components of surface energy budget. When increases in Ld, Lu, and sensible heat flux are combined with decreases in Sa and latent heat flux due to blowing snow effects, a negative surface net heat flux (∼0.5 W/m2) occurs during daytime. A positive domain-total surface mass balance (∼0.43 Gt) is generated during the simulated cyclone event due to increases in precipitation, decreases in runoff, and decreases in sublimation. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	blowing snow impacts; snow/ice enhanced WRF-ice model
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185541
作者单位	Department of Physics, North Carolina A&T State University, Greensboro, NC, United States; College of Oceanography, Hohai University, Nanjing, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, China; Geophysical Institute, University of Alaska Fairbanks, Fairbanks, AK, United States; Department of Geosciences, University of Oslo, Oslo, Norway; College of Atmosphere Science, Nanjing University of Information Science & Technology, Nanjing, China
推荐引用方式 GB/T 7714	Luo L.,Zhang J.,Hock R.,et al. Case Study of Blowing Snow Impacts on the Antarctic Peninsula Lower Atmosphere and Surface Simulated With a Snow/Ice Enhanced WRF Model[J],2021,126(2).
APA	Luo L.,Zhang J.,Hock R.,&Yao Y..(2021).Case Study of Blowing Snow Impacts on the Antarctic Peninsula Lower Atmosphere and Surface Simulated With a Snow/Ice Enhanced WRF Model.Journal of Geophysical Research: Atmospheres,126(2).
MLA	Luo L.,et al."Case Study of Blowing Snow Impacts on the Antarctic Peninsula Lower Atmosphere and Surface Simulated With a Snow/Ice Enhanced WRF Model".Journal of Geophysical Research: Atmospheres 126.2(2021).