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http://dx.doi.org/10.14191/Atmos.2021.31.4.433

An Analysis of Observed and Simulated Wind in the Snowfall Event in Yeongdong Region on 8 February 2020  

Kim, Hae-Min (High Impact Weather Research Department, National Institute of Meteorological Sciences, KMA)
Nam, Hyoung-Gu (High Impact Weather Research Department, National Institute of Meteorological Sciences, KMA)
Kim, Baek-Jo (High Impact Weather Research Department, National Institute of Meteorological Sciences, KMA)
Jee, Joon-Bum (Rearch Center for Atmospheric Environment, Hankuk University of Foreign Studies)
Publication Information
Atmosphere / v.31, no.4, 2021 , pp. 433-443 More about this Journal
Abstract
The wind speed and wind direction in Yeongdong are one of the crucial meteorological factors for forecasting snowfall in this area. To improve the snowfall forecast in Yeongdong region, Yeongdong Extreme Snowfall-Windstorm Experiment, YES-WEX was designed. We examined the wind field variation simulated with Local Data Assimilation and Prediction System (LDAPS) using observed wind field during YES-WEX period. The simulated wind speed was overestimated over the East Sea and especially 2 to 4 times in the coastal line. The vertical wind in Yeongdong region, which is a crucial factor in the snowfall forecast, was not well simulated at the low level (850 hPa~1000 hPa) until 12 hours before the forecast. The snowfall distribution was also not accurately simulated. Three hours after the snowfall on the East Sea coast was observed, the snowfall was simulated. To improve the forecast accuracy of snowfall in Yeongdong region, it is important to understand the weather conditions using the observed and simulated data. In the future, data in the northern part of the East Sea and the mountain slope of Taebaek observed from the meteorological aircraft, ship, and drone would help in understanding the snowfall phenomenon and improving forecasts.
Keywords
LDAPS; Yeongdong snowfall; simulated wind field;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Ahn, B.-Y., T.-Y. Kwon, K.-H. Cho, J.-S. Lee, and K.-T. Lee, 2007: Analysis of cloud properties related to Yeongdong heavy snow using the MODIS cloud Product. Korean J. Remote Sens., 23, 71-87 (in Korean with English abstract).   DOI
2 Kim, Y.-J., and J. G. Lee, 2014: WRF numerical study on the convergent cloud band and its neighbouring convective clouds. Atmosphere, 24, 49-68, doi:10.14191/Atmos.2014.24.1.049 (in Korean with English abstract).   DOI
3 KMA, 2019: Winter forecast guidance (Why? How!). Korea Meteorological Administration, 277 pp (in Korean).
4 Lee, J. G., and Y. J. Kim, 2008: A numerical simulation study using WRF of a heavy snowfall event in the Yeongdong coastal area in relation to the northeasterly. Atmosphere, 18, 339-354 (in Korean with English abstract).
5 Lee, J.-H., S.-H. Eun, B.-G. Kim, and S.-O. Han, 2012: An analysis of low-level stability in the heavy snowfall event observed in the Yeongdong region. Atmosphere, 22, 209-219, doi:10.14191/Atmos.2012.22.2.209 (in Korean with English abstract).   DOI
6 Nam, H.-G., B.-G. Kim, S.-O. Han, C. Lee, and S.-S. Lee, 2014: Characteristics of easterly-induced snowfall in Yeongdong and its relationship to air-sea temperature difference. Asia-Pac. J. Atmos. Sci., 50, 541-552, doi:10.1007/s13143-014-0044-3.   DOI
7 Kim, H.-M., S.-R. In, J.-H. Lee, C.-G. Park, and B.-J. Kim, 2019: Characteristics of meteorological elements change associated with heavy snowfall in the Youngdong area, Gangwon Province in the past five years. J. Climate Change Res., 10, 227-236, doi:10.15531/ksccr.2019.10.3.227.   DOI
8 KMA, 2015: A study of development convergent cloud band over the East Sea in winter and its effect on the snowfall over the Yeongdong region. Korea Meteorological Administration, 117 pp, doi:10.23000/TRKO201500013461 (in Korean).
9 Lee, J. G., 2001: A numerical simulation of a heavy snowfall event occurred along the Youngdong coastal area. J. Korean Meteor. Soc., 37, 1-12 (in Korean with English abstract).
10 Lee, J. G., and M. Xue, 2013: A study on a snowband associated with a coastal front and cold-air damming event of 3-4 February 1998 along the eastern coast of the Korean Peninsula, Adv. Atmos. Sci., 30, 263-279, doi:10.1007/s00376-012-2088-6.   DOI
11 Nam, H.-G., J. Jung, H.-U. Kim, J.-K. Shim, B.-J. Kim, S.-B. Kim, and B.-G. Kim, 2020: An analysis on the spatial scale of Yeongdong cold air damming (YCAD) in winter using observation and numerical weather model. Atmosphere, 30, 183-193, doi:10.14191/Atmos.2020.30.2.183 (in Korean with English abstract).   DOI