Topic: Activation of Modified Global Mosaic of Geostationary Satellite Imagery (GMGSI) Products

Date/Time Issued: June 9, 2020 1750 UTC

Product(s) or Data Impacted: GMGSI Product Suite (all four spectral bands)

Date/Time of Initial Impact: June 10, 2020 1500 UTC

Date/Time of Expected End: N/A

Details/Specifics of Change: To improve compa tibility with NWS AWIPS display, a modified version of the GMGSI product suite will be activated on June 10 at 1500 UTC on the PDA (netCDF4 format) and GEODIST (McIDAS area file format). A minor change was made to geolocation settings (i.e., negligible effect on gap at the International Date Line) and should be transparent for all users of the products. The GMGSI products affected and associated file names are:

PDA File Names (Short Name) File Name Pattern

GMGSI_LW_NetCDF (Longwave) | GLOBCOMPLIR_nc\.\d{10}$
GMGSI_SW_NetCDF (Shortwave) | GLOBCOMPSIR_nc\.\d{10}$
GMGSI_VIS_NetCDF (Visible) | GLOBCOMPVIS_nc\.\d{10}$
GMGSI_WV_NetCDF (Water Vapor) | GLOBCOMPWV_nc\.\d{10}$

GEODIST File Names

MOS/GLOBCOMPLIR (Longwave)
MOS/GLOBCOMPSIR (Shortwave)
MOS/GLOBCOMPVIS (Visible)
MOS/GLOBCOMPWV (Water Vapor)

If the current Critical Weather Day (CWD) period issued by the NWS extends beyond 1200 UTC, June 10, 2020, the activation will be postponed.

Primary Contact for Further Information: ESPC Operations at ESPCOperations@noaa.gov and 301-817-3880.

Web Site(s) for applicable information: N/A

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