Atmos. Chem. Phys., 21, 11955–11978, 2021 https://doi.org/10.5194/acp-21-11955-2021 © Author(s) 2021. This work is distributed under the Creative Commons Attribution 4.0 License. Impact of wind pattern and complex topography on snow microphysics during International Collaborative Experiment for PyeongChang 2018 Olympic and Paralympic winter games (ICE-POP 2018) Kwonil Kim1, Wonbae Bang1, Eun-Chul Chang2, Francisco J. Tapiador3, Chia-Lun Tsai1, Eunsil Jung4, and Gyuwon Lee1 1Department of Astronomy and Atmospheric Sciences, Center for Atmospheric REmote sensing (CARE), Kyungpook National University, Daegu, Republic of Korea 2Department of Atmospheric Sciences, Kongju National University, Gongju, Republic of Korea 3Earth and Space Sciences Research Group, Institute of Environmental Sciences, University of Castilla-La Mancha, Toledo, Spain 4Department of Advanced Science and Technology Convergence, Kyungpook National University, Sangju, Republic of Korea Correspondence: Gyuwon Lee (
[email protected]) Received: 13 February 2021 – Discussion started: 12 March 2021 Revised: 23 June 2021 – Accepted: 6 July 2021 – Published: 10 August 2021 Abstract. Snowfall in the northeastern part of South Ko- ward side, resulting in significant aggregation in the coastal rea is the result of complex snowfall mechanisms due to a region, with riming featuring as a primary growth mechanism highly contrasting terrain combined with nearby warm wa- in both mountainous and coastal regions. The cold-low pat- ters and three synoptic pressure patterns. All these factors to- tern is characterized by a higher snowfall rate and vertically gether create unique combinations, whose disentangling can deep systems in the mountainous region, with the precipi- provide new insights into the microphysics of snow on the tation system becoming shallower in the coastal region and planet.