loading page

Investigation of storm track characteristics in a regional climate model over East Asia
  • +4
  • Eun-Chul Chang,
  • Ui-Yong Byun,
  • Joowan Kim,
  • Joong-Bae Ahn,
  • Dong-Hyun Cha,
  • Seung-Ki Min,
  • Young-Hwa Byun
Eun-Chul Chang
Kongju National University

Corresponding Author:eunchul.chang@gmail.com

Author Profile
Ui-Yong Byun
Kongju National University
Author Profile
Joowan Kim
Kongju National University
Author Profile
Joong-Bae Ahn
Pusan National University
Author Profile
Dong-Hyun Cha
Ulsan National Institute of Science and Technology
Author Profile
Seung-Ki Min
Pohang University of Science and Technology
Author Profile
Young-Hwa Byun
National Institute of Meteorological Research
Author Profile


Studies have shown that regional climate models (RCMs) can simulate local climates at a higher resolution for specific regions compared to global climate models (GCMs), making dynamic downscaling using RCMs a more effective approach. Therefore, RCMs have become valuable tools for evaluating the potential impacts of climate change on specific regions and for informing local adaptation strategies. To fully understand the added value (AV) of RCMs, it is essential to understand how the characteristics differ between land and ocean. The complex topography of East Asia, including land and sea, makes it a suitable region for evaluating the AV of RCMs. In this study, we compared two regional simulations that integrated the same RCMs but employed different GCMs from the Coordinated Regional Climate Downscaling Experiment for their ability to simulate storm tracks in East Asia. The results of the RCMs over a historical period were compared with their host Coupled Model Intercomparison Project GCM projections and high-resolution reanalysis. In mountainous regions, the AV of the RCMs weakened the bias of the GCM and improved its agreement with the reanalysis. In plains and coastal areas, owing to the increase in horizontal resolution in RCMs, small-scale phenomena are well represented, and the storm track of RCMs shows similar values to that of the GCM in maritime regions. This study demonstrates the value of RCMs for improving the accuracy of climate projections in East Asia, informing adaptation strategies, and enhancing climate research.
01 May 2023Submitted to ESS Open Archive
02 May 2023Published in ESS Open Archive