水科学与水工程2010，Vol.3Issue(2)：166-173,8.DOI:10.3882/j.issn.1674-2370.2010.02.005
Storm surge model based on variational data assimilation method
Storm surge model based on variational data assimilation method
摘要
Abstract
By combining computation and observation information,the variational data assimilation method has the ability to eliminate errors caused by the uncertainty of parameters in practical forecasting.It was applied to a storm surge model based on unstructured grids with high spatial resolution meant for improving the forecasting accuracy of the storm surge.By controlling the wind stress drag coefficient,the variation-based model was developed and validated through data assimilation tests in an actual storm surge induced by a typhoon.In the data assimilation tests,the model accurately identified the wind stress drag coefficient and obtained results close to the true state.Then,the actual storm surge induced by Typhoon 0515 was forecast by the developed model,and the results demonstrate its efficiency in practical application.关键词
storm surge/variational data assimilation/synthetic data/unstructured gridKey words
storm surge/variational data assimilation/synthetic data/unstructured grid分类
建筑与水利引用本文复制引用
Shi-li HUANG,Jian XU,De-guan WANG,Dong-yan LU..Storm surge model based on variational data assimilation method[J].水科学与水工程,2010,3(2):166-173,8.基金项目
This work was supported by the Scientific Research Program Project of Shanghai (Grant No.07237041). （Grant No.07237041）
