22 Apr 2022
22 Apr 2022
Status: this preprint is currently under review for the journal NHESS.

A Comparative Analysis of Machine Learning Algorithms for Snowfall Prediction Models in South Korea

Moon-Soo Song1, Hong-Sik Yun1, Jae-Joon Lee2, and Sang-Guk Yum3 Moon-Soo Song et al.
  • 1Post-doctorate, Ph.D., Interdisciplinary Program in Crisis, Disaster and Risk Management, Sungkyunkwan University, Suwon, 16419, Korea
  • 2Professor, Ph.D., School of Civil, Architectural Engineering & Landscape Architecture, Sungkyunkwan University, Suwon, 16419, Korea
  • 3Professor, Ph.D., Department of Civil Engineering, College of Engineering, Gangneung-Wonju National University, Gangneung, 25457, Korea

Abstract. Heavy snowfall is a natural disaster that causes extensive damage in South Korea. Therefore, it is crucial to predict snowfall occurrence and establish countermeasures to reduce the damage caused by heavy snowfall. In this study, the meteorological and geographic data of the past 30 years were collected, and four machine learning algorithms were used: multiple linear regression (MLR), support vector regression (SVR), random forest regressor (RFR), and eXtreme gradient boosting (XGB). Subsequently, the performances of the machine learning algorithms were compared. Machine-learning algorithms were selected as regression models to predict heavy snowfall. Additionally, grid search and five-fold cross-validation techniques were used to improve learning performance. Model performance was evaluated by comparing the observed and predicted data. It was observed that the RFR model accurately predicted the occurrence of snowfall (R2 = 0.64) compared with other models with various statistical criteria. This result demonstrates the possibility of using the RFR model for heavy snowfall prediction. The proposed study can aid the government, local governments, and public institutions in developing strategies to respond to heavy snowfall in the fields of facilities, roads, and transportation.

Moon-Soo Song et al.

Status: open (until 14 Jun 2022)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on nhess-2022-118', Anonymous Referee #1, 25 Apr 2022 reply
  • AC1: 'Comment on nhess-2022-118', Sang-Guk Yum, 26 Apr 2022 reply
  • RC2: 'Comment on nhess-2022-118', Anonymous Referee #2, 24 May 2022 reply

Moon-Soo Song et al.

Moon-Soo Song et al.


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Short summary
In this study, emerging engineering techniques such as machine learning and deep learning technique was applied to predict heavy snowfall prediction in the Korean Peninsula. More specifically, it was observed that the predictive model using the RFR algorithm had the best performance based on a comparison between the observed and predicted data. In addition, it was observed that the performance of the ensemble models (RFR and XGB) was better than that of the single regression models.