Sensitivity analysis of the physics options in the Weather Research and Forecasting model for typhoon forecasting in Japan and its impacts on storm surge simulations

Weather Research and Forecasting (WRF) model is useful for forecasting typhoons as an external force of storm surge forecasts. This study examines the variation in typhoon forecasts caused by different choices arbitrary physics options WRF their influence on Eight frequently used combinations cloud microphysics planetary boundary layers were extracted via a review previous studies. Subsequently, sensitivity analyses these performed, targeting nine that landed Japan during 2015–2019. Additionally, we conducted case studies ensemble Tokyo Bay Osaka using WRF-simulated generated analysis. As result, mean was comparable to reanalysis simulation results obtained empirical wherein best track data integrated reproduce atmospheric fields. may be attributed fact parameters (intensity, size, approaching angle, velocity) from at landfall generally within range simulated WRF.