FAQ

Q
The land and sea flag update, and Identification error
A
In SGLIi products, the identification of the Land_water_flag varies depending on the version range of the following Level 1 products:
    Ver.2002 and earlier (up to May 26th, 2021)
    Ver.2003–2004 (May 26th, 2021, to March 8th, 2022)
    Ver.2005 and later (from March 8th, 2022, onward)
  • [Affected Areas]
    • Coastal regions, brackish lakes, and some rivers and lakes
    note)Currently, only the Japan region has been confirmed, but there may be differences in the Land_water_flag in other regions as well.
  • [Affected Products]
    • Level 1 products and higher-level products derived from them
For examples of differences in Land_water_flags by version, please see the following:
Examples of Land_water_flag Differences by Version (Japan)

Additionally, for information on the update timing and details of Level 1 product versions, please refer to the Level 1 Version History Table.
Last update: 2024/12/27