Request for RTTOV Coefficient Files for ATMS/NOAA-21

Satellite Application Facility for Numerical Weather Prediction Forums RTTOV RTTOV v13 RTTOV v13 General Discussion Request for RTTOV Coefficient Files for ATMS/NOAA-21

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  • #49086
    EUNJIN KIMEUNJIN KIM
    Participant

    Dear NWP-SAF community,

    Hello, I’m Eun-Jin Kim.

    I am reaching out to request RTTOV coefficient files for ATMS/NOAA-21 data.

    I have already confirmed the availability of SRF data for ATMS/NOAA-21 on the website,
    but unfortunately, I couldn’t find the “rtcoef_noaa_21_atms.dat” file.

    Additionally, I would like to request rtcoef files for both “RTTOV 12 and 13 versions”.
    If anyone has the relevant information or knows where I can find these files, your assistance would be greatly appreciated.

    Thank you in advance for your help,
    and I look forward to any guidance or information you can provide.

    (I tried to use the help desk, but encountered an error when creating a ticket,
    so I couldn’t post a message there..)

    Best regards,
    Eun-jin Kim

    #49087
    EUNJIN KIMEUNJIN KIM
    Participant

    Dear NWP-SAF community,

    Hello, I’m Eun-Jin Kim.

    I am reaching out to request RTTOV coefficient files for ATMS/NOAA-21 data.
    I have already confirmed the availability of SRF data for ATMS/NOAA-21 on the website,
    but unfortunately, I couldn’t find the “rtcoef_noaa_21_atms.dat” file.

    Additionally, I would like to request rtcoef files for both “RTTOV 12 and 13 versions”.
    If anyone has the relevant information or knows where I can find these files,
    your assistance would be greatly appreciated.

    Thank you in advance for your help, and I look forward to any guidance or information you can provide.

    (I tried to use the help desk, but encountered an error when creating a ticket,
    so I couldn’t post a message there..)

    Best regards,
    Eun-Jin Kim

    #49090
    James HockingJames Hocking
    Keymaster

    Hi Eun-Jin Kim,

    NOAA-21 ATMS coefficients based on measured spectral responses are available in these tarballs

    v13pred: https://nwp-saf.eumetsat.int/downloads/rtcoef_rttov13/rttov13pred54L/rtcoef_mw_rttov13pred54L_srf.tar.bz2

    v7pred: https://nwp-saf.eumetsat.int/downloads/rtcoef_rttov13/rttov7pred54L/rtcoef_mw_rttov7pred54L_srf.tar.bz2

    It is recommended to use the SRF-based coefficients. If you want to use top-hat pass band coefficients then you can use the NOAA-20 files (renamed/copied if necessary).

    Best wishes,
    James

    #49091
    EUNJIN KIMEUNJIN KIM
    Participant

    Hi James,

    I confirmed the information you provided and it was exactly what I was looking for.
    Thank you so much for the detailed and kind explanation : )

    Have a great day!

    Best regards,
    Eun-Jin Kim

Viewing 4 posts - 1 through 4 (of 4 total)
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