Attempt for accuracy improvement of wave hindcasting / forecastig in coastal sea and inner sea by data assimilation

Noriaki Hashimoto, Kuniaki Matsuura, Hiroyasu Kawai

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

Two different types of data assimilation methods, the optimum interpolation method and the adjoint method, are applied to improve wave hindcasting / forecasting accuracy in coastal sea and inner sea of Japan. The optimum interpolation method is a practical and convenient one for improving estimation accuracy of waves in coastal sea facing open sea where there are observation data around the sea. On the other hand, wave characteristics in inner sea are local, being strongly influenced by the surrounding topographic conditions. In such sea area, the adjoint method is an alternative method to improve wave estimation accuracy, in which model parameters are turned to adapt to the local conditions in the area.

Original languageEnglish
Pages (from-to)483-495
Number of pages13
JournalProceedings of the Coastal Engineering Conference
Publication statusPublished - Dec 1 2009
Event31st International Conference on Coastal Engineering, ICCE 2008 - Hamburg, Germany
Duration: Aug 31 2008Sep 5 2008

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All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Ocean Engineering
  • Oceanography

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