US NATIONAL AERONAUTIC AND SPACE ADMINISTRATION; JET PROPULSION LABORATORY Physical Oceanography Distributed Active Archive Center (JPL PO.DAAC)
20111007
010000Z
GHRSST-PP L2P Near Atlantic Regional (NAR) Sea Surface Temperature (SST-sub-skin) for 2011-08-14 (NODC Accession 0078248)
tabular digital data
Near Atlantic Regional (NAR) Sea Surface Temperature L2P produced by Medspiration
Not specified
1.0
Silver Spring, Maryland, USA
US National Oceanographic Data Center
ftp://ftp.ifremer.fr/ifremer/valmedspi
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 gradiant 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 avaialable 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.
The Global Ocean Data Assimilation Experiment (GODAE)
high-resolution sea surface temperature (GHRSST) project data.
Entry ID: EUR-L2P-NAR18_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 km
Longitude resolution: 2.0 km
The temporal resolution: 12 hourly
This metadata record was generated from an original data set description (DSD) record in DIF format: http://www.ghrsst.org
Reference: Medspiration products user manual, Robinson I., Leborgne P., Piolle J.F., Larnicol G., v1.02, September 2004
Sources:
NOAA-18
National Oceanographic and Atmospheric Administration Environmental Satellite 18
Sensors:
AVHRR/2
Advanced Very High Resolution Radiometer version 3
20110814
20110814
ground condition
As needed
-44.992001
44.997002
78.244003
20.0
GCMD
Earth Science
Oceans
Ocean Temperature
Sea Surface Temperature
None
AVHRR/2
Advanced Very High Resolution Radiometer version 3
NODC DATA TYPES THESAURUS
SEA SURFACE TEMPERATURE
NODC INSTRUMENT TYPES THESAURUS
AVHRR-HRPT
NODC OBSERVATION TYPES THESAURUS
satellite data
NODC PROJECT NAMES THESAURUS
Group for High Resolution Sea Surface Temperature
NODC SUBMITTING INSTITUTION NAMES THESAURUS
US NATIONAL AERONAUTIC AND SPACE ADMINISTRATION; JET PROPULSION LABORATORY Physical Oceanography Distributed Active Archive Center (JPL PO.DAAC)
NODC COLLECTING INSTITUTION NAMES THESAURUS
MEDSPIRATION (MEDSPIRATION)
ISO 19115 Topic Categories
oceans
NODC SEA AREA NAMES THESAURUS
World-Wide Distribution
GCMD
Atlantic Ocean
None.
None. NOAA and NODC would appreciate recognition as the resource
from which these data were obtained in any publications and/or other
representations of these data.
US NATIONAL AERONAUTIC AND SPACE ADMINISTRATION; JET PROPULSION LABORATORY
Armstrong, Edward
mailing and physical
MS 300/320
4800 Oak Grove Drive
Pasadena
CA
91109
UNITED STATES
Unavailable
Unavailable
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)
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)
20041215T010000Z
Medspiration products user manual, Robinson I., Leborgne P., Piolle J.F., Larnicol G., v1.02, September 2004
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)
20041215T010000Z
Project Home Page
http://www.medspiration.org
2.0 km
2.0 km
Decimal degrees
Dr. Kenneth Casey
NOAA National Oceanographic Data Center
Physical scientist
mailing address
NOAA National Oceanographic Data Center
SSMC3, 4th Floor, Room 4853, Route: E/OC1
1315 East-West Highway
Silver Spring
Maryland
20910
U.S.A.
(301)713-3300
FAX: (301) 713-3300
Kenneth.Casey@noaa.gov
9:00 AM-4:00 PM, EST
Phone/FAX/E-mail/letter
NODC ACCESSION # 0078248
NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA and NODC cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system.
netCDF
20041215T010000Z
GHRSST formatted file (netCDF version 3); see: The Recommended GHRSST-PP Data Processing Specification, GDS (Version 1 revision 1.5), GHRSST-PP Report Number 17.
sea surface temperature data
See: The Recommended GHRSST-PP Data Processing Specification, GDS (Version 1 revision 1.5), GHRSST-PP Report Number 17.
46.346
http://www.nodc.noaa.gov/cgi-bin/OAS/prd/accession/download/0078248
Data may be directly downloaded through the NODC Ocean
Archive System at:
URL: http://accession.nodc.noaa.gov/0078248/.
NODC can be contacted directly for custom orders. When
requesting data from the NODC, the desired data set may be
referred to by the 7-digit number given in the RESOURCE
DESCRIPTION field of this metadata record.
For more information see the NODC GHRSST project web site:
URL: http://ghrsst.nodc.noaa.gov
Standard Internet browser and FTP capability
ftp://ftp.nodc.noaa.gov/pub/data.nodc/ghrsst
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
Any FTP client
http://data.nodc.noaa.gov/ghrsst
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
Standard Internet browser and/or software capable of utilizing
netCDF files
http://data.nodc.noaa.gov/cgi-bin/nph-dods/ghrsst
These data are also served using OPeNDAP (formerly DODS)
server. The base URL is:
URL: http://data.nodc.noaa.gov/cgi-bin/nph-dods/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:
URL: http://opendap.org/
Standard Internet browsers can browse OPeNDAP servers and
specialized OPeNDAP software can enable more sophisticated data
access and visualizations.
none
Data may be directly downloaded through the NODC website at: http://accession.nodc.noaa.gov/0078248/. NODC can be contacted directly for custom orders. (When requesting data from the NODC, the desired data set may be referred to by the 7-digit number given in the RESOURCE DESCRIPTION field of this metadata record).
Within 24 hours if directly downloaded, depending on size
Contact the NODC User Services Group via phone/FAX/E-mail: nodc.services@noaa.gov
Working knowlege of netCDF files and ability to work with satellite data strongly recommended.
20021215T010000Z
Unknown
Present
Unknown
Jean-Francois Piolle
Francais de Recherche pour l'Exploitation de la Mer / Centre ERS d'Archivage et de Traitement (Medspiration IFREMER / CERSAT)
Technical contact
mailing address
IFREMER/CERSAT, technopole Brest-Iroise, 29280 Plouzane, France
IFREMER/CERSAT, technopole Brest-Iroise, 29280 Plouzane, France
IFREMER/CERSAT, technopole Brest-Iroise, 29280 Plouzane, France
IFREMER/CERSAT, technopole Brest-Iroise, 29280 Plouzane, France
IFREMER/CERSAT, technopole Brest-Iroise, 29280 Plouzane, France
+33 (0)2 98 22 46 91
+33 (0)2 98 22 45 33
jfpiolle@ifremer.fr
Standard Business hours
Phone/FAX/Email
DSD-EUR-L2P-NAR18_SST.xml
Unknown; see http://www.ifremer.fr/cersat/en/index.html
netCDF
20041215T010000Z
GHRSST formatted file (netCDF version 3); see: The Recommended GHRSST-PP Data Processing Specification, GDS (Version 1 revision 1.5), GHRSST-PP Report Number 17.
sea surface temperature data
See: The Recommended GHRSST-PP Data Processing Specification, GDS (Version 1 revision 1.5), GHRSST-PP Report Number 17.
46.346
http://www.ifremer.fr/cersat/en/index.html
Access Medspiration IFREMER / CERSAT site: http://www.ifremer.fr/cersat/en/index.html; some products may require authorization (restricted access)
PC, Mac, Linux, Unix; standard Internet browser
See URL at: http://www.ifremer.fr/cersat/en/index.html
See URL at: http://www.ifremer.fr/cersat/en/index.html. Some products may have restricted access.
Within 24 hours if directly downloaded, depending on size
See Medspiration IFREMER / CERSAT website at URL: http://www.ifremer.fr/cersat/en/index.html
Ability to work with netCDF files, working knowledge of satellite data strongly recommended
20021215T010000Z
Unknown
Present
Unknown
Edward Armstrong
Jet Propulsion Laboratory (JPL), Physical Oceanography Distributed Active Archive Center (PO.DAAC)
Technical Contact
mailing address
4800 Oak Grove Dr.
Pasadena
California
91109
USA
818 393 6710
818 393 2718
ghrsst@podaac.jpl.nasa.gov
Standard Business hours, Pacific Time
Phone/FAX/Email
DSD-EUR-L2P-NAR18_SST.xml
JPL makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. JPL cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system.
netCDF
20041215T010000Z
GHRSST formatted file (netCDF version 3); see: The Recommended GHRSST-PP Data Processing Specification, GDS (Version 1 revision 1.5), GHRSST-PP Report Number 17.
sea surface temperature data
See: The Recommended GHRSST-PP Data Processing Specification, GDS (Version 1 revision 1.5), GHRSST-PP Report Number 17.
46.346
ftp://podaac.jpl.nasa.gov/pub/sea_surface_temperature/GHRSST
The direct FTP link is:
ftp://podaac.jpl.nasa.gov/pub/sea_surface_temperature/GHRSST
Data, documentation, and read software may also be downloaded through
the JPL Global Data Assembly Center (GDAC) at:
URL: http://ghrsst.jpl.nasa.gov/data_access.html
For more information see the GDAC GHRSST project web site:
URL: http://ghrsst.nasa.noaa.gov
GHRSST products are generally only stored and available for a
period of 30 days after satellite observation.
After this time they can be acquired from the NOAA NODC.
PC, Mac, Linux, Unix; standard Internet browser
None
See URL at: http:/ghrsst.jpl.nasa.gov . Some products may have restricted access. GHRSST products are available for a period of about 30 days after observation. After this time they can be acquired from the NOAA NODC.
Within 24 hours if directly downloaded, depending on size
Contact the PO.DAAC User Services Office: ghrsst@podaac.jpl.nasa.gov
Ability to work with netCDF files, working knowledge of satellite data strongly recommended
20021215T010000Z
Unknown
Present
Unknown
20110814-NAR18_SST-EUR-L2P-sst1nar_noaa18_20110814_asc-v01.nc
GHRSST Formatted netCDF data file
The Recommended GHRSST-PP Data Processing Specification
GDS (Version 1 revision 1.5), GHRSST-PP Report Number 17
Compiled by Craig Donlon and the GHRSST-PP Science Team
craig.donlon@metoffice.com
Published by the International GHRSST-PP Project Office
Met Office
Fitzroy Road
Exeter, EX3 1PB
United Kingdom
Tel: +44 (0)1392 886622
Fax: +44 (0)1393 885681
Latitude
Latitude in decimal degrees following FGDC
specifications. Here, the Range Domain Minimum given below is
equivalent to a South Bounding Coordinate for this Entity.
The Range Domain Maximum is the North Bounding
Coordinate.
FGDC-STD-001-1998
20.000
78.244
20110814T122800Z
20110814T155200Z
Longitude
Longitude in decimal degrees following FGDC specifications. Here, the Range Domain Minimum given below is equivalent to a West Bounding Coordinate for this entity. The Range Domain Maximum is the East Bounding Coordinate.
FGDC-STD-001-1998
-44.992
44.997
20110814T122800Z
20110814T155200Z
Time
Universal Time (Greenwich Mean Time) values shall follow the 24 hour timekeeping system for Universal time of day in hours, minutes, and seconds, and decimal fractions of a second (expressed to the precision desired) without separators convention, with the upper case letter Z following the low order (or extreme right-hand) time element of the 24 hour hour time clock expression. The general form is HHMMSSSSZ.
American Standards Institute, 1975, Representations of universal time, local time differentials, and United States time zone reference for information interchange (ANSI X3.51-1975): New York, American National Standards Institute. For usage in these data see: The Recommended GHRSST-PP Data Processing Specification GDS (Version 1 revision 1.5), GHRSST-PP Report Number 17 Canned text; no .DIF match
20110814T122800Z
20110814T155200Z
20110814T122800Z
20110814T155200Z
20110814-NAR18_SST-EUR-L2P-sst1nar_noaa18_20110814_desc-v01.nc
GHRSST Formatted netCDF data file
The Recommended GHRSST-PP Data Processing Specification
GDS (Version 1 revision 1.5), GHRSST-PP Report Number 17
Compiled by Craig Donlon and the GHRSST-PP Science Team
craig.donlon@metoffice.com
Published by the International GHRSST-PP Project Office
Met Office
Fitzroy Road
Exeter, EX3 1PB
United Kingdom
Tel: +44 (0)1392 886622
Fax: +44 (0)1393 885681
Latitude
Latitude in decimal degrees following FGDC
specifications. Here, the Range Domain Minimum given below is
equivalent to a South Bounding Coordinate for this Entity.
The Range Domain Maximum is the North Bounding
Coordinate.
FGDC-STD-001-1998
20.000
78.244
20110814T060300Z
20110814T060300Z
Longitude
Longitude in decimal degrees following FGDC specifications. Here, the Range Domain Minimum given below is equivalent to a West Bounding Coordinate for this entity. The Range Domain Maximum is the East Bounding Coordinate.
FGDC-STD-001-1998
-44.992
44.997
20110814T060300Z
20110814T060300Z
Time
Universal Time (Greenwich Mean Time) values shall follow the 24 hour timekeeping system for Universal time of day in hours, minutes, and seconds, and decimal fractions of a second (expressed to the precision desired) without separators convention, with the upper case letter Z following the low order (or extreme right-hand) time element of the 24 hour hour time clock expression. The general form is HHMMSSSSZ.
American Standards Institute, 1975, Representations of universal time, local time differentials, and United States time zone reference for information interchange (ANSI X3.51-1975): New York, American National Standards Institute. For usage in these data see: The Recommended GHRSST-PP Data Processing Specification GDS (Version 1 revision 1.5), GHRSST-PP Report Number 17 Canned text; no .DIF match
20110814T060300Z
20110814T060300Z
20110814T060300Z
20110814T060300Z
Within the GHRSST DIF-style metadata framework, every data set type is described by a static Data Set Description (DSD), and the individual netCDF files making up that dataset are described by dynamic File Records (FR). These FRs contain the spatial and temporal domain contained in each data file. The DIF-style metadata (the DSD and its children FRs) are converted to a single FGDC record for each NODC GHRSST accession, which can consist of several discrete data files. This conversion is accomplished using an XML stylesheet which builds a framework FGDC record based on the DSD, and populates it with one Entity for each data file based on the FRs. These Entities are given three Attributes: Latitude, Longitude, and Time. The Range Domain Minimum and Maximum elements within each of those Attributes are use to describe the spatial and temporal domain contained in the data file. So, for example, the Range Domain Minimum for the Attribute Latitude corresponds to a South Bounding Coordinate for that Entity.
The Recommended GHRSST-PP Data Processing Specification
GDS (Version 1 revision 1.5), GHRSST-PP Report Number 17
Compiled by Craig Donlon and the GHRSST-PP Science Team
craig.donlon@metoffice.com
Published by the International GHRSST-PP Project Office
Met Office
Fitzroy Road
Exeter, EX3 1PB
United Kingdom
Tel: +44 (0)1392 886622
Fax: +44 (0)1393 885681
Metadata records converted to FGDC format and archived at the National Oceanographic Data Center
20111007
Dr. Kenneth Casey
NOAA National Oceanographic Data Center
Physical scientist
mailing address
NOAA National Oceanographic Data Center
SSMC3, 4th Floor, Room 4853, Route: E/OC1
1315 East-West Highway
Silver Spring
Maryland
20910
U.S.A.
(301)713-3300
FAX: (301) 713-3300
Kenneth.Casey@noaa.gov
9:00 AM-4:00 PM, EST
Phone/FAX/E-mail/letter
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time
None
None
None
Unclassified
Not applicable