Global Mosaic of Geostationary Satellite Imagery (GMGSI)

About 

The Global Mosaic of Geostationary Satellite Imagery (GMGSI) is a set of products derived from GOES-West, GOES-East, Himawari-9, Meteosat-9, and Meteosat-11. It provides near-global coverage for Visible, Water Vapor, and Longwave Infrared data. One full global image for each of the 3 composite types is produced every 3 hours. GMGSI improved upon and replaced the GINI Global Multi-Satellite Geostationary Satellite Imagery Composite products on December 10, 2020.

Limitations

Latitudinal Coverage: Valid data is produced from 71N to 71S.

Cadence: PDA subscriptions receive hourly updates, while the SBN transmits new composites every 3 hours.

AWIPS 

Location: Satellite → Global 5 Sat Composites → Choose Global Visible/Window IR/Water Vapor

Color Maps: Visible: Sat/VIS/ZA (Vis Default)

Water Vapor: Sat/WV/CIMSS_WV

Longwave IR: Sat/IR/CIRA (IR Default)

Sampling: N/A

Quality Flags: None

Technique: The Visible composite band is ~0.6 microns, which may be used to view cloud cover, ice, and snow cover. The Water Vapor band is ~6.7 microns, which shows the amount of water vapor contained in the mid to upper levels of the troposphere. The Longwave/Window IR band is ~12.0 microns, which shows cloud cover and surface temperature.

AWIPS Technical Details

Sector Global
Refresh Rate 3hr over SBN (1hr PDA)
Size

Visible 6.5MB/hr 19.5MB/file

Water Vapor 4.6MB/hr 13.8MB/file

Longwave IR 7.2MB/hr 21.6MB/file

Resolution 8km horizontal
Data Source NESDIS via PDA
Projection None (lon/lat grid)
Storage Location /data_store/goes-r
WMO Header

Visible TICF02 KNES

Water Vapor TICF08 KNES

Longwave IR TICF14 KNES

Product Short Name

Visible GMGSI_VIS_NetCDF

Water Vapor GMGSI_WV_NetCDF

Longwave IR GMGSI_LW_NetCDF

Data Path SBN
AWIPS Configuration TOWR-S RPM v22
AWIPS Plugin netcdfGrid
Edex Purge Rule 3 versions (3 days)

Use Cases & More

More information can be retrieved from NESDIS, OSPO, and the SCN from the GINI deactivation.

Point of Contact: Jessica Shallcross

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This page was last updated on February 27, 2024