FAQ

    Q
    Difference of Shikisai ocean product between G-Portal and JASMES
    A
    G-Portal and JASMES provide the Shikisai products, due to differences in processing methods, the accuracy and the start time of provision differ. The recommended data is different depending on the application, so please confirm before using these ones.
    Please refer to below for details.
    Difference of Shikisai product (Ocean product) between G-Portal and JASMES
    Please note that the data available for download differ between G-Portal and JASMES.

    Last update: 2025/10/10