GHRSST Level 2P North Atlantic Regional Bulk Sea Surface Temperature from the Advanced Very High Resolution Radiometer (AVHRR) on the NOAA-16 satellite
Entry ID: EUR-L2P-NAR16_SST

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Summary
Abstract: A 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-16 platform (launched on 21 Sep 2000). 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 platforms are 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 direct broadcast High Resolution Picture Transmission (HRPT) AVHRR data that are re-mapped onto a stereopolar grid to produce mosaics at 2 km resolution. An operational AVHRR cloud mask is applied based on a multi-spectral thresholding algorithm (Derrien and Le Gleau 1999). Some refinements specific to the marine conditions have been introduced including the use of fine scale climatology and a fine gradiant climatology to assist in the detection of clouds in areas characterised by strong thermal gradients. L2P data products are then derived following the GHRSST-PP Data Processing Specification (GDS) version 1.5 including Single Sensor Error Statistics (SSES). Although the dataset designation is "L2P" it is actually a "L3C" dataset (gridded Level 3 collated) as defined by the GHRSST Data Processing Specification version 2.0. This dataset was originally produced for the GHRSST Pilot Project (GHRSST-PP), the precursor to GHRSST, by the Medspiration Regional Data Assembly Center (RDAC) in Europe. As one of the first datasets produced as a prototype for the GHRSST-PP it assumed an incorrect designation of "L2P".

Related URL
Link: GET DATA > THREDDS DIRECTORY
Description: Data may be directly downloaded from the NODC via the THREDDS (Thematic Real-time Environmental Distributed Data Services) server at the URL listed in this metadata record. For more information see the NODC GHRSST project web site: URL: http://ghrsst.nodc.noaa.gov/


Link: GET DATA > OPENDAP DIRECTORY (DODS)
Description: These data are also served using OPeNDAP (formerly DODS) server. The base URL is: http://data.nodc.noaa.gov/opendap/ghrsst/. For more information see the NODC GHRSST project web site: URL:http://ghrsst.nodc.noaa.gov/. For a listing of OPeNDAP clients which may be used to access OPeNDAP-enabled data sets, please see the OPeNDAP web site at URL: http://opendap.org/


Link: GET DATA
Description: Direct FTP access: Navigate to ftp://ftp.nodc.noaa.gov/pub/data.nodc/ghrsst using any FTP client to begin downloading data. For more information see the NODC GHRSST project web site: URL: http://ghrsst.nodc.noaa.gov/


Link: GET DATA
Description: Simple Web access: Using any web browser, navigate to URL: http://data.nodc.noaa.gov/ghrsst and begin browsing through the file hierarchy. Clicking on any of the files will prompt you to download that file or will launch any application associated with netCDF files. For more information see the NODC GHRSST project web site: URL: http://ghrsst.nodc.noaa.gov/


Link: GET DATA
Description: Data may be directly downloaded through the NODC Ocean Archive System at: URL: http://www.nodc.noaa.gov/Archive/Search/. NODC can be contacted directly for custom orders. (When requesting data from the NODC, a data set may be referred to by a 7-digit accession number assigned to individual data sets, see the NODC Ocean Archive System at http://www.nodc.noaa.gov/Archive/Search/.) For more information see the NODC GHRSST project web site: URL: http://ghrsst.nodc.noaa.gov/


Geographic Coverage
 N: 79.0 S: 20.0  E: 45.0  W: -45.0
 Min Altitude: 0  Max Altitude: 0  Min Depth: 0  Max Depth: 0

Data Set Citation
Dataset Originator/Creator: Medspiration: Meteo France/Meteo France, Centre de Meteorologie Spatiale (CMS), Lannion, 22303 Lannion, cedex, France; EUMETSAT EUMETSAT-Ocean and Sea Ice Satellite Application Facility (OSI-SAF)
Dataset Title: GHRSST-PP L2P North Atlantic Regional (NAR) Sea Surface Temperature (SST-sub-skin)
Dataset Series Name: North Atlantic Regional (NAR) Sea Surface Temperature L2P produced by Medspiration
Dataset Release Date: 2004-12-09
Dataset Release Place: Plouzane (Brest), France
Dataset Publisher: Medspiration, IFREMER/CERSAT
Version: 1.0
Other Citation Details: Data are produced by the ESA (funded by the ESA-DUE)
Online Resource: ftp://ftp.ifremer.fr/ifremer/valmedspi


Temporal Coverage
Start Date: 2005-01-31
Stop Date: 2005-11-22


Location Keywords
OCEAN > ATLANTIC OCEAN


Data Resolution
Latitude Resolution: 0.018
Longitude Resolution: 0.018
Temporal Resolution: Twice daily (nominally)


Science Keywords
OCEANS >OCEAN TEMPERATURE >SEA SURFACE TEMPERATURE >BULK SEA SURFACE TEMPERATURE    [Definition]


ISO Topic Category
OCEANS
GEOSCIENTIFIC INFORMATION


Platform
NOAA-16 >National Oceanic & Atmospheric Administration-16    [Information]


Instrument
AVHRR-3 >Advanced Very High Resolution Radiometer-3    [Information]


Project
CWIC >CEOS WGISS Integrated Catalog    [Information]
GHRSST >Group for High Resolution Sea Surface Temperature    [Information]


Access Constraints
None


Use Constraints
None


Keywords
SEA SURFACE TEMPERATURE
AVHRR > Advanced Very High Resolution Radiometer
AATSR
AMSR-E
TMI
SEVIRI
satellite data
326S - SATELLITE
Group for High Resolution Sea Surface Temperature
MEDSPIRATION
US NATIONAL AERONAUTIC AND SPACE ADMINISTRATION; JET PROPULSION LABORATORY Physical Oceanography Distributed Active Archive Center
Earth Science
Ocean Temperature
Sea Surface Temperature
climatologyMeteorologyAtmosphere
oceans
environment
biota
GHRSST protocol describes data use as open
North Atlantic
Atlantic Ocean


Originating Center
Medspiration Meteo-France/Centre de Meteorologie Spatiale (CMS)


Data Center
National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce    [Information]
Data Center URL: http://www.nodc.noaa.gov/

Data Center Personnel
Name: NODC CUSTOMER SERVICE
Phone: 1 301 7133277
Fax: 1 301 7133302
Email: NODC.Services at noaa.gov


Centre ERS d'Archivage et de Traitement, French Research Institute for Exploitation of the Sea, France    [Information]
Data Center URL: http://www.ifremer.fr/cersat/index.html
Dataset ID: NAR16_SST

Data Center Personnel
Name: JEAN-FRANCOIS PIOLLE
Phone: +33-2-98224691
Fax: +33-2-98224533
Email: jfpiolle at ifremer.fr


Personnel
KENNETH S. CASEY
Role: TECHNICAL CONTACT
Phone: (301) 713-3272 x133
Fax: FAX: (301) 713-3300
Email: Kenneth.Casey at noaa.gov
Contact Address:
NOAA National Oceanographic Data Center SSMC3, 4th Floor, Room 4853, Route: E/OC1 1315 East-West Highway
City: Silver Spring
Province or State: Maryland
Postal Code: 20910
Country: U.S.A.


JEAN-FRANCOIS PIOLLE
Role: TECHNICAL CONTACT
Phone: +33-2-98224691
Fax: +33-2-98224533
Email: jfpiolle at ifremer.fr


PIERRE LEBORGNE
Role: TECHNICAL CONTACT
Phone: +33 2 96 05 67 52
Fax: +33 2 96 05 67 37
Email: pierre.leborgne at meteo.fr


SYLVIE POULIQUEN
Role: TECHNICAL CONTACT
Phone: +33 2 98 22 44 92
Fax: +33 2 98 22 45 33
Email: sylvie.pouliquen at ifremer.fr
Contact Address:
Departement d'Oceanographie Spatiale
IFREMER BP 70
City: Plouzane
Postal Code: 29280
Country: FRANCE


Publications/References
Robinson I., Leborgne P., Piolle J.F., Larnicol G. (2004), Medspiration products user manual, v1.02

Creation and Review Dates
DIF Creation Date: 2011-09-18
Last DIF Revision Date: 2012-11-07

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