Skip to main content
U.S. flag

An official website of the United States government

This site is currently in beta, and your feedback is helping shape its ongoing development.

NOAA Geostationary Operational Environmental Satellite (GOES) I-M and N-P Series Block 11 Data

Published by DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 27, 2026 | Last Modified: 2013-12-01T00:00:00.000+00:00
GOES Satellite Data - Block 11 (GVAR_B11) - GVAR is the data transmission format used to broadcast environmental data measured by the independent GOES Imager and Sounder instruments. The Block 11 data files contain ancillary instrument data and metadata that may be useful to expert users. All sounder data will be included in Block 11, but not all Block 11's will contain sounder data. As the GVAR data are received by NOAA, the sounder blocks are stripped out and converted into McIDAS AREA format for final archive.

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov