International Collaborative Experiments for Pyeongchang 2018 Olympic and Paralympic winter games (ICE-POP 2018)

The understanding and predicting the winter precipitation over complex terrain is challenging due to highly variable nature of snowfall. As a World Meteorological Organization (WMO)'s World Weather Research Program (WWRP), ICE-POP 2018 (International Collaborative Experiments for Pyeongchang 2018 Olympic and Paralympic winter games) was held in PyeongChang region during Nov. 2018 to April 2019 with contribution from 29 agencies from 12 countries. The scientific goal is to understand the precipitation processes over complex terrain during cold season and to improve the numerical model based on the understanding from the intensive observation as well as direct utilization of these observational data.

During the field campaign, dense observational networks of upper air (2 wind profilers, 8 soundings, ship, and aircraft), surface stations (64 stations), remote sensing (3 S-Pol, 1 S-band, 2 C-band, 3 X-Pol, 1 Ku/Ka-Pol radars, and 3 Doppler lidars), microphysics (2DVD, PIP, Parsivel, MRR, POSS, MASC, Pluvio, and so on) were implemented. The network of the supersite was designed to explore the evolution of precipitation along and across atmospheric flows.

The field experiment is ended with intensive observation and the quality control of data and detail analysis are stared. We show all different types of microphysical products including precipitation types and map, microphysical information, three dimensional structure of precipitation and winds, model re-analysis, etc. We will further demonstrate overview of phenomena, some statistical results, and preliminary results.

Key words: ICE-POP 2018, Snow, complex terrain, PyeongChang Olympics, field experiment

Acknowledgement: This work was funded by the Korea Meteorological Administration Research and Development Program under Grant KMI2018-06810.