GHRSST Level 3C North Atlantic Regional Subskin Sea Surface Temperature from the Advanced Very High Resolution Radiometer (AVHRR) on NOAA-19 (GDS2 version)

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DescriptionA Group for High Resolution Sea Surface Temperature (GHRSST) dataset for the North Atlantic Region (NAR) from the Advanced Very High Resolution Radiometer (AVHRR) on the NOAA-19 platform (launched 6 Feb 2009). This particular dataset is produced by the European Organization for the Exploitation of Meteorological Satellites (EUMETSAT), Ocean and Sea Ice Satellite Application Facility (OSI SAF) in France. The AVHRR is a space-borne scanning sensor on the National Oceanic and Atmospheric Administration (NOAA) family of Polar Orbiting Environmental Satellites (POES) having a operational legacy that traces back to the Television Infrared Observation Satellite-N (TIROS-N) launched in 1978. AVHRR instruments measure the radiance of the Earth in 5 (or 6) relatively wide spectral bands. The first two are centered around the red (0.6 micrometer) and near-infrared (0.9 micrometer) regions, the third one is located around 3.5 micrometer, and the last two sample the emitted thermal radiation, around 11 and 12 micrometers, respectively. The legacy 5 band instrument is known as AVHRR/2 while the more recent version, the AVHRR/3 (first carried on the NOAA-15 platform), acquires data in a 6th channel located at 1.6 micrometer. Typically the 11 and 12 micron channels are used to derive sea surface temperature (SST) sometimes in combination with the 3.5 micron channel. The highest ground resolution that can be obtained from the current AVHRR instruments is 1.1 km at nadir. The NOAA-19 platform is sun synchronous generally viewing the same earth location twice a day (latitude dependent) due to the relatively large AVHRR swath of approximately 2400 km. The NAR products are SST fields derived from 1km AVHRR data that are re-mapped onto a 0.02 degree equal angle grid. In the processing chain, global AVHRR level 1b data are acquired at Centre de Meteorologie Spatiale (CMS) through the EUMETSAT/EUMETCAST system. A cloud mask is applied and SST is retrieved from the AVHRR infrared (IR) channels by using a multispectral technique. This dataset adheres to the GHRSST Data Processing Specification (GDS) version 2 format specifications.
Dataset TypeCOMPLETE
Processing Level3
CoverageRegion: ATLANTIC OCEAN
Region: EUROPE
North Bounding Coordinate: 78.24 degrees
South Bounding Coordinate: 23.59 degrees
West Bounding Coordinate: -76.02 degrees
East Bounding Coordinate: 72.97 degrees
Time Span: 2013-Jun-04 to 2013-Nov-20
Granule Time Span: 2013-Jun-04 to 2013-Nov-20
ResolutionSpatial Resolution: 0.02 degrees (Latitude) x 0.02 degrees (Longitude)
Temporal Resolution: 12 Hour
ProjectionProjection Type: Cylindrical Lat-Lon
Projection Detail: Regular 0.02 degree grid
Ellipsoid: WGS 84
Name: National Oceanic & Atmospheric Administration-20 (NOAA-20)
Orbit Period: 102.0 minutes
Inclination Angle: 99.0 degrees
Name: Advanced Very High Resolution Radiometer-3 (AVHRR-3)
Swath Width: 2400.0 kilometers
Description: Spacecraft angular distance from orbital plane relative to the Equator.

ProjectGroup for High Resolution Sea Surface Temperature (GHRSST)
Data ProviderPublisher: EUMETSAT Ocean and Sea Ice Satellite Application Facility, Meteo-France/CMS, Lannion, France
Release Place: EUMETSAT Ocean and Sea Ice Satellite Application Facility, Lannion, France
Release Date: 2008-Aug-08

Keyword(s)GHRSST, sea surface temperature, sst, surface temperature, osi saf, osisaf, avhrr, gds2, noaa19, l3c, atlantic
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Citation is critically important for dataset documentation and discovery. Please cite the data as follows, and cite the reference papers when it is appropriate.
Citation EUMETSAT/OSI-SAF. 2008. NOAA-19 AVHRR NAR SST data set. Ver. 1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at

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For more information see Data Citations and Acknowledgments.

Journal Reference Low Earth Orbiter Sea Surface Temperature Product User Manual,