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    Actually-measured marine environment data assimilation method based on sequence recursive filtering three-dimensional variation
    1.
    发明授权
    Actually-measured marine environment data assimilation method based on sequence recursive filtering three-dimensional variation 有权

    公开(公告)号：US10439594B2

    公开(公告)日：2019-10-08

    申请号：US15519823

    申请日：2014-12-01

    Applicant: Yuxin Zhao ,  HARBIN ENGINEERING UNIVERSITY

    Inventor： Yuxin Zhao ,  Chang Liu ,  Xuefeng Zhang ,  Liqiang Liu ,  Gang Li ,  Feng Gao ,  Ning Li ,  Zhifeng Shen ,  Zhenxing Zhang ,  Zhao Qi

    IPC: G06F17/50 ,  H03H17/02

    Abstract: The present invention provides an actually-measured marine environment data assimilation method based on sequence recursive filtering three-dimensional variation. The method includes: preprocessing actually-measured marine environment data; calculating a target function value; calculating a gradient value of a target function; calculating a minimum value of the target function; extracting space multi-scale information from the actually-measured data; and updating background field data to form a final data assimilation analysis field. The present invention improves the traditional recursive filtering three-dimensional variation method, and sequentially assimilates information with different scales, thereby effectively overcoming the problem that multi-scale information cannot be effectively extracted by a traditional three-dimensional variation method. A high-order recursive Gaussian filter is used, and a cascaded form of the high-order recursive filter is converted into a parallel structure, so that the recursive filtering process of the recursive Gaussian filter can be executed in parallel, and many problems caused by a cascaded filter are overcome.

    Marine Transportation Platform Guarantee-Oriented Analysis and Prediction Method for Three-Dimensional Temperature and Salinity Field
    3.
    发明申请
    Marine Transportation Platform Guarantee-Oriented Analysis and Prediction Method for Three-Dimensional Temperature and Salinity Field 有权

    公开(公告)号：US20220326211A1

    公开(公告)日：2022-10-13

    申请号：US17847496

    申请日：2022-06-23

    Applicant: Harbin Engineering University

    Inventor： Yuxin Zhao ,  Rixu Hao ,  Jiaxun Li ,  Chang Liu ,  Qiuyang Zhang ,  Dequan Yang ,  Shuo Yang ,  Yanlong Liu ,  Hengde Zhao ,  Ting Zhao

    IPC: G01N33/18 ,  G01C13/00

    Abstract: The disclosure provides a marine transportation platforms guarantee-oriented analysis and prediction method for a three-dimensional temperature and salinity field, including: based on multi-source marine environmental data, analyzing the spatiotemporal distribution characteristics of marine dynamic environmental elements, and studying the characteristics of the temperature-salinity relation; on the basis of analysis of the spatiotemporal characteristics and study of the characteristics of the temperature-salinity relation, establishing a statistical prediction model of marine environmental dynamic elements by a spatiotemporal empirical orthogonal function method; based on the observation data of temperature and salinity obtained by the marine transportation platform, correcting a marine environment forecast field around the marine transportation platform by using a realtime analysis technology of a marine environment field; and adjusting the salinity using a temperature-salinity relation curve after the temperature and salinity are forecasted, so as to keep the temperature-salinity relation as close as possible to its climatic characteristics. The disclosure makes up for the shortcomings of the traditional numerical prediction method that the period of prediction validity of marine dynamic environmental elements is short due to meteorologically driven timeliness restrictions, and the prediction process of the disclosure does not require a high-performance computing platform and occupies less computing resource.

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