Application studies of using HY-2 satellite altimeter wave data in ensemble optimal interpolation method——“Lipee” for instance

Wang Tianju; Qi Linlin; Zhu Jiang; Wang Ju; Song Pan; Wang Xiaodan

doi:10.3969/j.issn.0253-4193.2017.02.003

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Wang Tianju, Qi Linlin, Zhu Jiang, Wang Ju, Song Pan, Wang Xiaodan. Application studies of using HY-2 satellite altimeter wave data in ensemble optimal interpolation method——“Lipee” for instance[J]. Haiyang Xuebao, 2017, 39(2): 29-38. doi: 10.3969/j.issn.0253-4193.2017.02.003

Citation:

Wang Tianju, Qi Linlin, Zhu Jiang, Wang Ju, Song Pan, Wang Xiaodan. Application studies of using HY-2 satellite altimeter wave data in ensemble optimal interpolation method——“Lipee” for instance[J]. Haiyang Xuebao, 2017, 39(2): 29-38. doi: 10.3969/j.issn.0253-4193.2017.02.003

Citation:

Wang Tianju, Qi Linlin, Zhu Jiang, Wang Ju, Song Pan, Wang Xiaodan. Application studies of using HY-2 satellite altimeter wave data in ensemble optimal interpolation method——“Lipee” for instance[J]. Haiyang Xuebao, 2017, 39(2): 29-38. doi: 10.3969/j.issn.0253-4193.2017.02.003

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Application studies of using HY-2 satellite altimeter wave data in ensemble optimal interpolation method——“Lipee” for instance

doi: 10.3969/j.issn.0253-4193.2017.02.003

1.
College of Meteorology and Oceanography, PLA University of Science and Technology, Nanjing 211101, China;Institute of Aeronautical Meteorology, Equipment Academy of Air Force, Beijing 100085, China
2.
Institute of Aeronautical Meteorology, Equipment Academy of Air Force, Beijing 100085, China
3.
International Center for Climate and Environment Science, Institute of Atmosphere Physics, Chinese Academy of Sciences, Beijing 100029, China
4.
College of Meteorology and Oceanography, PLA University of Science and Technology, Nanjing 211101, China

Received Date: 2016-05-09
Rev Recd Date: 2016-08-06

Abstract

Abstract

Ensemble Optimal Interpolation (EnOI) assimilation of HY-2 satellite altimetry data into SWAN(Simulating Waves Nearshore) model was applied into wave simulating and forecasting of typhoon "Lipee". The results showed that the assimilation of EnOI combined with HY-2 satellite altimeter wave data could improve the accuracy of initial field. The accuracy of the bias of the initial field could be improved by 15%, and the RMSE of it could be improved by 14%. The bias and RMSE of forecasting both decreased at different levels. The accuracy of the forecasting field could be improved most in the first 24 hours, and the values of bias and RMSE were decreased by 12% and 13%. Conclusion of these experiments can provide information for wave forecasting and simulation, and can strength the use of HY-2 satellite altimetry data into practice.
- HY-2 satellite altimeter data,
- ensemble optimal interpolation,
- typhoon wave forecast

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References(24)

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