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GHRSST L2P NOAA/ACSPO GOES-18/ABI West America Region Sea Surface Temperature v2.90 dataset (GDS version 2)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: October 13, 2025 | Last Modified: 2025-10-11T00:00:00.000+00:00
The G18-ABI-L2P-ACSPO-v2.90 dataset produced by the NOAA ACSPO system is used to derive Subskin and Depth Sea Surface Temperature (SST) from the ABI onboard the G18 satellite. NOAA’s G18 (aka, GOES-T pre-launch) was launched on March 1, 2022, replacing the G17 as GOES West in Jan'2023. It is the third satellite in the US GOES–R Series, the Western Hemisphere’s most sophisticated weather-observing and environmental-monitoring system. The ABI is the primary instrument on the GOES-R Series for imaging Earth’s weather, oceans, and environment. G18/ABI maps SST in a Full Disk (FD) area from 163E-77W and 60S-60N, with a spatial resolution of 2km/nadir to 15km/VZA 67-deg, and 10-min temporal sampling. The 10-min FD data are subsequently collated in time, to produce the 1-hr product, with improved coverage and reduced cloud leakages and image noise. The L2P is produced in netCDF4 GDS2 format, with 24 granules per day, and a total data volume 0.8 GB/day. The near-real time (NRT) data are updated hourly, with several hours latency. The NRT files are replaced with Delayed Mode (DM) files, with a latency of ~2-months. File names remain unchanged, and DM vs NRT can be identified by different time stamps and global attributes inside the files (MERRA instead of GFS for atmospheric profiles, and same day CMC L4 analyses in DM instead of one-day delayed in NRT processing). Pixel earth locations are not reported in the granules, as they remain unchanged from granule to granule. Those can be obtained using a flat lat/lon file or a Python script available at Documents tab under How-To section. The ACSPO G18 ABI SSTs are validated against quality controlled in situ data from the NOAA iQuam system (Xu and Ignatov, 2014) and continuously monitored in NOAA SQUAM system (Dash et al, 2010). A 0.02-deg equal-angle gridded L3C product 0.7GB/day) is also available.

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Applications and Research NASA JPL PO.DAAC NOAA Office of Satellite and Product Operations Group for High Resolution Sea Surface Temperature (GHRSST) Bay of Fundy Caribbean Sea Davis Strait Gulf of America Gulf of California Gulf of Mexico Gulf of St. Lawrence Hudson Bay Hudson Strait Labrador Sea North Atlantic Ocean North Pacific Ocean South Atlantic Ocean South Pacific Ocean oceanography DOC/NOAA/NESDIS/OSPO > Office of Satellite and Product Operations, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/STAR > Center for Satellite Applications and Research, NESDIS, NOAA, U.S. Department of Commerce NASA/JPL/PODAAC > Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NASA GHRSST > Group for High Resolution Sea Surface Temperature EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND SPEED EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature > Sea Surface Subskin Temperature ABI > Advanced Baseline Imager GOES-18 > Geostationary Operational Environmental Satellite 18 OCEAN > ARCTIC OCEAN OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > BAY OF FUNDY OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > CARIBBEAN SEA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > DAVIS STRAIT OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF ST LAWRENCE OCEAN > ATLANTIC OCEAN > SOUTH ATLANTIC OCEAN OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN

Complete Metadata

describedByType application/octet-steam
identifier gov.noaa.nodc:GHRSST-ABI_G18-STAR-L2P
issued 2023-08-22T00:00:00.000+00:00
landingPage https://www.ncei.noaa.gov/contact
language []
references 
[
  "https://doi.org/10.1117/12.2620058",
  "https://cmr.earthdata.nasa.gov/search/concepts/C2731035022-POCLOUD.html",
  "https://www.star.nesdis.noaa.gov/socd/sst/iquam/",
  "https://www.star.nesdis.noaa.gov/socd/sst/squam/",
  "https://www.ncei.noaa.gov/archive/accession/0123222"
]
rights otherRestrictions
spatial -55.80115,-81.14883,141.8049,81.14685
temporal 2023-04-05T00:00:00+00:00/2023-04-05T00:00:00+00:00

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