Special Issue (Coastal Engineering)Paper
PESUDO GLOBAL WARMING EXPERIMENTS OF TYPHOON CONSIDERING FUTURE CHANGES IN ATMOSPHERIC CIRCULATION
2023 Volume 79 Issue 17 Article ID: 23-17169
Details
2023 Volume 79 Issue 17 Article ID: 23-17169
Pseudo global warming experiments (PGW) were conducted for Typhoon 1821 using the atmosphere model (WRF) and the coupled atmosphere-ocean model (WRF-ROMS), with the global climate models selected to focus on the future change in the atmospheric circulation. Changes in typhoon intensity, track, ocean response and disaster hazard were compared and evaluated between historical experiment and PGWs. The typhoon intensity increased, and the tracks were shifted in PGWs. Future changes in wind speed in the upper atmosphere were correlated with changes in track and translation speed, and typhoon intensity tended to increase with decreasing translation speed for WRF, while typhoon intensity tended to decrease for WRF-ROMS. The results of hazard assessment focusing on 1-hour and 12-hour precipitation showed that, on average, the hazard was enhanced in PGW, although there were changes in the areas affected by the hazard due to changes in typhoon track.
