FAQ

Q
Some limitations of ARNP
A
In Aerosol product (ARNP) of Ver.3, we confirmed that some problem.
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  1. Some tiles products in ocean area are stored as all fill data.

  2. [area] ocean area.
    [products] ARNP
    [version] Ver.3001, 3002
    [Target period] Jun 1, 2021 to Jul 31, 2021 (reprocessed), Nov 29, 2021 to Mar 8, 2022
    *)Details are confirming

    Updated to the modified algorithm (as ver.3003) on May 30, 2022.
    These incorrect products are reprocessed sequentially and obtained from the following FTP.
    *) The products created between Nov 29, 2021 and Feb 29, 2022 are plan to reprocess and will be distribute.

    Sequential processing/publishing
    [L2 ARNPK reprocessing data], [L2 ARNPF reprocessing data]
    [L3 AROTC reprocessing data], [L3 ARAEC reprocessing data], [L3 ASSAC reprocessing data]

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  3. There are some products for which some data is not created / minor value discrepancies occurs.

  4. [Target products] L2 ARNP, L3 AROTC, ARAEC, ASSAC
    [Target version] Ver.3001
    [Target period] Jun 1, 2021 to Jul 31, 2021 (reprocessed), Nov 29, 2021 to Mar 8, 2022
    [Occurrence condition]
    • Image_end_time is after UTC 23:30
    • Descending orbit (daytime observation)

    The following is a list of the tiles (ARNPK) that may be affected.

    Updated to the modified algorithm (as ver.3002) on March 8, 2022.
    These incorrect products are reprocessed sequentially and obtained from the following FTP.
    *) The products created between Nov 29, 2021 and Feb 29, 2022 are plan to reprocess and will be distribute.

    Sequential processing/publishing
    [L2 ARNPK reprocessing data], [L2 ARNPF reprocessing data]
    [L3 AROTC reprocessing data], [L3 ARAEC reprocessing data], [L3 ASSAC reprocessing data]

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  5. Snow and ice areas are not masked in L3 global data.
  6. The cause was that the input L2 ARNPF mask for statistics was an invalid value.

    [Target products] Global products (L3 AROTC, ARAEC, ASSAC)
    [Target Version] Ver.3001, 3002
    [Target period] Jun 1, 2021 to Jul 31, 2021 (reprocessed), Nov 29, 2021 to Mar 8, 2022
    *)Details are confirming

    Updated to the modified algorithm (as ver.3003) on May 30, 2022.
    These incorrect products are reprocessed sequentially and obtained from the following FTP.
    *) The products created between Nov 29, 2021 and Feb 29, 2022 are plan to reprocess and will be distribute.

    Sequential processing/publishing
    [L3 AROTC reprocessing data], [L3 ARAEC reprocessing data], [L3 ASSAC reprocessing data]

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  7. Some L2 and L3 global data with wrong values is generated due to the Incorrect input data.

  8. [Target products] Global products (L2 ARNPF, L3 AROTC, ARAEC, ASSAC)
    [Target Version] Ver.3001, 3002
    [Target period] Jun 1, 2021 to Jul 31, 2021 (reprocessed), Nov 29, 2021 to Mar 8, 2022
    *)Details are confirming

    Updated to the modified algorithm (as ver.3003) on May 30, 2022.
    These incorrect products are reprocessed sequentially and obtained from the following FTP.
    *) The products created between Nov 29, 2021 and Feb 29, 2022 are plan to reprocess and will be distribute.

    Sequential processing/publishing
    [L2 ARNPF reprocessing data]
    [L3 AROTC reprocessing data], [L3 ARAEC reprocessing data], [L3 ASSAC reprocessing data]

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Last update: 2024/10/28