REGIONAL MARINE AND METEOROLOGICAL MODEL SYSTEM FOR SOUTH CHINA SEA AND OPERATIONAL APPLICATIONS
LIU Chun-xia
ZHAO Zhong-kuo
YUAN Jin-nan
WEN Guang-huan
BI Xue-yan
Abstract：In this paper,a marine meteorological model system (Grapes-MAMS) by Guangzhou Institute of Tropical and Marine meteorology (ITMM) CMA is introduced to describe its running framework,configuration of a regional ocean model,a wave model and a storm surge model in the system.Based on buoy data in offshore Guangdong,the results of model verification are shown.Sea surface temperature are assimilated,wind fields are improved and drag coefficients are replaced in the storm surge model.The following conclusions are drawn:(1)The verification results showed that the operational wave model is improved year by year by ITMM.Comparisons of the significant wave height forecasting score for Guangdong offshore areas between the Grapes-MAMS regional wave model and the European Center global wave model indicate that the TS of the former model has larger scores than that of the latter.(2) The prediction of sea surface temperature of the regional ocean model improved significantly by assimilating SST,and the correlation coefficient between SST prediction from model and buoy observations is about 0.7.(3) When the new drag coefficient based on the Maoming scientific base was introduced to the storm surge model,strong typhoon Ramasun storm surge forecasting can be effectively improved.The storm surge model can give maximum storm surge forecasting more than 20 hours ahead while there is little difference between the forecast and the observation of the maximum storm surge.
Keywords：marine and meteorological model systemwave modelstorm surge modelverification
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：10( 890-899 )