gov.noaa.nodc:0002855
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gov.noaa.nodc:GHRSST-EUR-L2P-NAR17_SST
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2022-05-27T18:55:32Z
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
GHRSST-PP L2P Near Atlantic Regional (NAR) Sea Surface Temperature (SST-sub-skin) for 2005-01-31 (NCEI Accession 0002855)
2006-09-13
publication
NOAA National Centers for Environmental Information
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0002855
NOAA National Centers for Environmental Information
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Edward M. Armstrong
US NASA; Jet Propulsion Laboratory (JPL)
edward.m.armstrong@jpl.nasa.gov
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US NASA; Jet Propulsion Laboratory; Physical Oceanography Distributed Active Archive Center (PO.DAAC)
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Medspiration
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Armstrong, Edward M.
US NASA; Jet Propulsion Laboratory (JPL)
edward.m.armstrong@jpl.nasa.gov
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NASA JPL PO.DAAC
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tableDigital
The EUMETSAT OSI-SAF NAR SST products are SST fields derived from NOAA/AVHRR data and available over 6 pre-defined zones, 4 times per day. After acquisition and calibration at CMS, the NOAA/AVHRR data are re-mapped onto a stereopolar grid to produce mosaics of consecutive orbits over Europe and the Near Atlantic at a 2 km resolution. Mosaics are made over a 'Rectification Grand Domaine' area (RGD). For re-mapped grid points observed by more than one overpass, the smallest satellite zenith angle data are selected. In the normal conditions when two satellites are operational, four mosaics per day are produced for all the AVHRR channels. SSTs are then calculated from these data. Six zones are then extracted. They are 1024 * 1024 pixels in size to offer the users (presumably interested by local phenomena) the possibility of handling a restricted volume of data. Note that SSTs are calculated over the entire RGD, but only the predefined zones are delivered as NAR products. The operational CMS AVHRR cloud mask in use is based on a multi-spectral thresholding algorithm (Derrien and Le Gleau 1999). Some refinements specific to the marine conditions have been introduced including Use of fine scale climatology and a fine gradient climatology to assist in the detection of clouds in areas characterised by strong thermal gradients. SSTs are derived from the 11 and 12 micron brightness temperatures (T11 and T12). The NOAA /AVHRR has three IR channels : channel 3 (3.6-3.8 micron), channel 4 (10.2-11.2 micron) and channel 5 (11.5-12.5 micron) which provide IR data at 1-km spatial resolution at the satellite subpoint (Kidwell, 1997). NOAA-14 and NOAA-16 have similar characteristics, but with distinct radiometer filter functions that necessitate distinct algorithm coefficients. The algorithms coefficients are derived from multilinear regression on a simulation database. At night the use of the 3.7 channel in a triple window algorithm improves the SST retrieval performances under high water vapor content conditions. The expected accuracy is defined as the expected bias and standard deviation of the primary calculations against drifting buoy measurements determined on a monthly or yearly basis. The following performance evaluation was derived from a detailed validation of NOAA/AVHRR derived SSTs (Brisson et al 2001). Bias: Apart for the first 2 months after the launch of a new satellite, the monthly biases should remain within +/-0.4 K by night. By day local biases of several K are possible because of shallow diurnal heating. Standard deviation: see table below: low-cloud cases (cloud coverage less than 10% of the validation box) have been separated from all cases (cloud coverage less than 60%). The 'expected maximum standard deviation' or the expected maximum biases are the maximum values that can be observed under normal conditions. When these values are overpassed, some anomaly may have occurred and the problem must be identified. Standard deviation Table Yearly, all Monthly, all Yearly, low-cloud Monthly, lowcloud 0.7 0.8 0.6 0.7 Physical definition subskin SST : Comparable to in situ (buoy) measurements at night. Relation to bulk SST: equivalent to bulk SST by night. By day, a bias of several Kelvin may be found under favorable diurnal heating conditions, Relation to skin SST: By day and by night the subskin SST is convertible to skin temperature by subtracting 0.2K. Units and range Units: Centi-Kelvins When using GRIB format, a scaling factor of 100 must be applied. No lower limit is imposed on the SST calculations, providing the sea is ice free. The expected range is thus from about -3 degC till 35 degC, corresponding to actual values of 27000 to 30800. Unprocessed data (for whatever reason) show a negative value (-32768) in HDF format, or is flagged as missing in GRIB section3. Origin SST calculated from the IR channel data of the NOAA/AVHRR re-mapped onto a stereopolar grid at 2 km resolution. SST are extracted over 6 pre-defined zones Geographical definition Projection: Polar stereographic projection defined with an elliptical earth (equatorial radius: 6378.388 km; polar radius: 6356.912 km), y axis is meridian 0. Resolution: 2 km at 45 N Size of each zone: 1024 columns, 1024 lines L2P data products are then derived following the GHRSST-PP Data Processing Specification (GDS) version 1.5 available from http://ghrsst-pp.metoffice.com/documents/GDS-v1.0-rev1.5.pdf. Single Sensor Error Statistics (SSES) are provided based on the GDS-v1.5 specification.
This dataset is available to the public for a wide variety of uses including scientific research and analysis.
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0002855
NCEI ACCESSION NUMBER
2006-09-13
publication
SEA SURFACE TEMPERATURE
theme
NODC DATA TYPES THESAURUS
AVHRR-3
instrument
NODC INSTRUMENT TYPES THESAURUS
satellite data
theme
NODC OBSERVATION TYPES THESAURUS
NOAA-17
platform
NODC PLATFORM NAMES THESAURUS
Medspiration
dataCentre
NODC COLLECTING INSTITUTION NAMES THESAURUS
US NASA; Jet Propulsion Laboratory; Physical Oceanography Distributed Active Archive Center
dataCentre
NODC SUBMITTING INSTITUTION NAMES THESAURUS
Group for High Resolution Sea Surface Temperature (GHRSST)
project
NODC PROJECT NAMES THESAURUS
Baltic Sea
Barents Sea
Bay of Biscay
Black Sea
Bristol Channel
Davis Strait
English Channel
Greenland Sea (including Iceland Sea and North Greenland Sea)
Inner Sea - West Coast Scotland
Irish Sea and St. George's Channel
Kattegat, The Sound, Great Belt, Little Belt
Labrador Sea
Mediterranean Sea
North Atlantic Ocean
North Sea
Norwegian Sea
Sea of Azov
Skagerrak
place
NODC SEA AREA NAMES THESAURUS
oceanography
theme
WMO_CategoryCode
2012-09-15
publication
DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce
NASA/JPL/PODAAC > Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NASA
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EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE
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NOAA-17 > National Oceanic & Atmospheric Administration-17
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NOAA-17 (ICES code: 33ZS, 2002-2013)
platform
ICES/SeaDataNet Ship Codes
CONTINENT > ASIA > WESTERN ASIA > BLACK SEA
CONTINENT > EUROPE > EASTERN EUROPE > BLACK SEA
OCEAN > ARCTIC OCEAN
OCEAN > ARCTIC OCEAN > BARENTS SEA
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > BALTIC SEA
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > DAVIS STRAIT
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > IRISH SEA
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > MEDITERRANEAN SEA
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > NORTH SEA
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accessLevel: Public
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Cite as: Armstrong, Edward M.; NASA JPL PO.DAAC (2006). GHRSST-PP L2P Near Atlantic Regional (NAR) Sea Surface Temperature (SST-sub-skin) for 2005-01-31 (NCEI Accession 0002855). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0002855. Accessed [date].
Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
otherRestrictions
Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
GHRSST Level 2P North Atlantic Regional Bulk Sea Surface Temperature from the Advanced Very High Resolution Radiometer (AVHRR) on the NOAA-17 satellite (GDS version 1)
2006-09-13
publication
NOAA National Centers for Environmental Information
gov.noaa.nodc:GHRSST-EUR-L2P-NAR17_SST
https://www.ncei.noaa.gov/archive/accession/GHRSST-EUR-L2P-NAR17_SST
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NOAA National Centers for Environmental Information
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collection
eng; USA
utf8
environment
oceans
-6
36.5
30
46
2005-01-31
2005-01-31
Entry ID: EUR-L2P-NAR17_SST
Projection_Information:
Projection Type: Polar stereographic 2km
Ellipsoid_Type: equatorial radius: 6378.388 km; polar radius: 6356.912 km
Other Projection Details: Polar stereographic projection defined with an elliptical earth (equatorial radius: 6378.388 km; polar radius: 6356.912 km), y axis is meridian 0.
Data Resolution:
Latitude resolution: 2.0
Longitude resolution: 2.0
The temporal resolution: 6 hours 6 hourly
This metadata record was generated from an original data set description (DSD) record in .DIF format: http://www.ghrsst-pp.org
Reference: Medspiration products user manual, Robinson I., Leborgne P., Piolle J.F., Larnicol G., v1.02, September 2004
Sources:
NOAA-17
National Oceanic and Atmospheric Administration Environmental Satellite 17
Sensors:
AVHRR/2
Advanced Very High Resolution Radiometer version 3
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These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP).
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Web browsers can browse THREDDS Data Servers and specialized THREDDS software can enable more sophisticated data access and visualizations.
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These data are available through a variety of services via a THREDDS (Thematic Real-time Environmental Distributed Data Services) Data Server (TDS). Depending on the dataset, the TDS can provide WMS, WCS, DAP, HTTP, and other data access and metadata services as well. For more information on the TDS, see http://www.unidata.ucar.edu/software/thredds/current/tds/.
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dataset
NCEI Accession 0002855 v1.1 was published.
2006-09-13T13:27:25Z
NCEI Accession 0002855 v1.1
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https://www.ncei.noaa.gov/archive/accession/0002855/1.1
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NCEI Accession 0002855 v1.1
published 2006-09-13T13:27:25Z
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NOAA National Centers for Environmental Information
NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
2015-04-22T00:00:00
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Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness.
NOAA National Centers for Environmental Information
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AVHRR-3
AVHRR-3
Advanced Very High Resolution Radiometer-3
The AVHRR-3 is a six channel scanning radiometer providing 3 solar channels in the visible-near infrared region and 3 thermal infrared channels. The AVHRR-3 has two one-micrometer wide channels between 10.3 and 12.5 micrometers. This latest version of AVHRR was first carried on NOAA-15 launched in May 1998 and subsequently in all current NOAA and MetOp platforms. Measuring the same view, this array of diverse wavelengths, after processing, permits multi spectral analysis for more precisely defining hydrologic, oceanographic, and meteorological parameters. Comparison of data from two channels is often used to observe features or measure various environmental parameters. The three channels operating entirely within the infrared band are used to detect the heat radiation from and hence, the temperature of land, water, sea surfaces, and the clouds above them.
Additional Information:
http://www.ncdc.noaa.gov/oa/pod-guide/ncdc/docs/klm/html/c3/sec3-1.htm
NOAA-17
Updated information from ICES for the platform NOAA-17 from United States.
Name NOAA-17
Country(s) US: UNITED STATES
Platform Class 65: Orbiting satellite
Native Name
Synonyms
Call Sign
MMSI
IMO
Pennant
Title
Commissioned Date 2002
Decommissioned Date 2013
Notes
Polar-orbiting environmental satellite launched June 2002. The NODC has archived AVHRR SST data collected from this platform as part of the Pathfinder project.
Instruments: AVHRR/3 et al
Information source (URL)
https://www.wmo-sat.info/oscar/satellites/view/339
Confirmed by NOAA on 2018-07-17.