An Analysis of Variation of Extreme Snowfall over South Korea by the Distribution of Climate Factors in East Asia

The average temperature of the globe is continuously increasing due to global warming, and the average temperature in winter is also increasing. In addition, the frequency of the cold wave and extreme snowfall is decreasing worldwide, while the intensity of the cold wave and extreme snowfall tends to be stronger. This phenomenon is due to the cold air being pushed by cracks in the polar vortex that keeps the cold air on the polar region, resulting in a record-breaking clod wave and extreme snowfall in Europe and East Asia. Consequently, the record-breaking cold wave and the unusual extreme snowfall are causing social infrastructures to be paralyzed and inflicting the huge loss of life and property. The goal of this paper is to analyze the distribution and relationship of specific climatic factors and affection the variation of snowfall on the Korean Peninsula various climatic factors in East Asia. We used NCEP(National centers for Environmental Prediction) reanalysis data of NOAA(National Oceanic and Atmospheric Administration) to analyze the characteristics of climate factors around the Korean Peninsula, including China and Japan. The period of all data was from November to March, the winter season of the Korean Peninsula. To analyze the characteristics of climate factors affecting snowfall over the Korean Peninsula, teleconnection was analyzed using climatic factors such as snow depth, precipitation, temperature, air pressure, humidity, wind, and sea surface temperature. An analysis of the teleconnection, carried out on snowfall and various climatic factors, will provide robust results for predicting the occurrence and effect of extreme snowfall and Assessing the risk of heavy snowfall.