AVHRR Pathfinder version 5.0, interim version 5.0, and version 5.1 global 4km sea surface temperature (SST) data for 1981-2009

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The 4 km Pathfinder effort at the National Oceanic and Atmospheric Administration (NOAA) National Oceanographic Data Center (NODC) and the University of Miami's Rosenstiel School of Marine and Atmospheric Science (RSMAS) is an extension of and improvement on the sea surface temperature (SST) fields from the NOAA/NASA AVHRR Oceans 9km Pathfinder dataset. In this 4 km Pathfinder project, some important shortcomings in the original 9 km data have been corrected, and the entire time series has been reprocessed at the 4 km Global Area Coverage (GAC) level, the highest resolution possible globally. Twice-daily SST and related parameters back to 1981 have been produced, as well as temporal averages for 5-day, 7-day, 8-day, monthly, and yearly periods. This information is archived at the National Oceanographic Data Center. This metadata record describes the temporally averaged SST data and related parameters available for 1981-2009. Data for all years and time periods are available as separate NODC accessions. These data were collected through the operational periods of the NOAA-7 through NOAA-18 Polar Operational Environmental Satellite (POES).
  • Cite as: Casey, Kenneth; Kearns, Edward J.; Halliwell, Vicki; Evans, Robert (2010). AVHRR Pathfinder version 5.0, interim version 5.0, and version 5.1 global 4km sea surface temperature (SST) data for 1981-2009. National Oceanographic Data Center, NOAA. Dataset. [access date]
  • Please refer to Credit tab for full citation information.
gov.noaa.nodc:AVHRR_Pathfinder-NODC-v5.0_v5.1
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Distribution Formats
  • HDF (Version: 4)
    • File Specification: NCSA Hierarchical Data Format (HDF 4), Scientific Data Set (HDF-SDS)
  • JPEG
    • File Specification: Joint Photographic Experts Group file format
Ordering Instructions Data may be searched and downloaded using online services provided by NCEI using the online resource URLs in this record. Contact NCEI Information Services for custom orders. When requesting data from NCEI, the desired data set may be referred to by the unique package identification number listed in this metadata record.
Distributor DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
301-713-3277
NCEI.Info@noaa.gov
Dataset Point of Contact Information Services
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
301-713-3277
NCEI.Info@noaa.gov
Time Period 1981-08-24 to 2009-12-31
Spatial Reference System urn:ogc:def:crs:EPSG::4326
Spatial Bounding Box Coordinates
N: 90
S: -90
E: 180
W: -180
Spatial Coverage Map
General Documentation
Associated Resources
Publication Dates
  • publication: 2010-12-13
  • revision: 2017-06-05
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Data Update Frequency As needed
Supplemental Information
Originally, the Version 5.0 Pathfinder algorithm was used to produce these twice-daily, 5-day, 7-day, 8-day, monthly, and yearly global SST and related parameters (described below). This algorithm is an improved version of the previously most successful of many methods used to derive SST from AVHRR observations (see Barton (1995) for a review of earlier techniques), the University of Miami Pathfinder version v4.2 SST algorithm (described fully in Kilpatrick et al., 2001).

The v4.2 algorithm offered marked improvement over operational retrieval algorithms such as MCSST and was applied to AVHRR data to maximize accuracy and to minimize artificial fluctuations arising from the sequence of AVHRR instruments flown on NOAA's polar-orbiting satellites during the past 2 decades. The 9 km v4.2 Pathfinder SSTs have already been shown to be the highest quality product currently available for the construction of global climatologies (Casey and Cornillon, 1999) and longer-term SST trend determination (Casey and Cornillon, 2001), and have been demonstrated to be accurate within about 0.3 degrees C under optimal conditions (Kearns et al., 2000). Relative to the older 9 km v4.2 Pathfinder data, the new, ~4 km resolution Pathfinder Version 5.0 global SSTs increase detail roughly by a factor of four simply by virtue of the increased resolution. The increase in detail over widely used but relatively coarse SST datasets such as Optimally Interpolated SST Version 2 (OISSTv2; Reynolds et al., 2002) and the Hadley Centre's Global Sea Ice and SST (HadISST1; Rayner et al., 2003) is far greater.

In addition to the increased resolution, significant improvements have been made in the Version 5.0 which enhance the usefulness of the SST fields. Currently, these enhancements include the use of sea ice in the quality level determination scheme, inclusion of many inland water bodies, and the use of a greatly improved land mask. The greatest improvements are seen in coastal zones, marginal seas, and boundary current regions where SST gradients are often large and their impact on operational or research products is greatest. Separate SST products for daytime and nighttime AVHRR retrievals are made to better understand the differences in skin and bulk temperatures, since mean differences between AVHRR-measured skin temperatures and bulk temperatures of 0.1 to 0.2 degrees C (Schluessel et al., 1990) and locally varying differences of up to 1.8 degrees C (Minnett et al., 2000) have been observed.

In addition to SST values, the Pathfinder V5.0 Project makes six other parameters available, for a total of seven per time step: 1. All-pixel SST - The all-pixel SST files contain values for each pixel location, including those contaminated with clouds or other sources of error. The Overall Quality Flag values may be used to filter out these unwanted values. The SST value in each pixel location is an average of the highest quality AVHRR Global Area Coverage (GAC) observations available in each roughly 4 km bin. 2. First-guess SST - The Pathfinder algorithm uses a first guess SST provided by the Reynolds Optimally Interpolated SST Version 2 (OISSTv2) product. The OISSTv2 is also used in the quality control procedures. For Version 5.1 data (1981-1985), the Reynolds Optimum Interpolation 1/4-degree Daily SST Analysis Version 2 (DOISSTv2) was used in place of the OISSTv2. 3. Number of observations - This parameter indicates the number of AVHRR GAC observations falling in each approximately 4 km bin. 4. Standard deviation - This is the standard deviation of the observations in each 4 km bin. 5. Overall quality flag - The overall quality flag is a relative assignment of SST quality based on a hierarchical suite of tests. The Quality Flag varies from 0 to 7, with 0 being the lowest quality and 7 the highest. For more information regarding the suite of tests, see the Kilpatrick et al. (2001) paper cited above. 6. Mask 1 - These files contain a mask code, which along with Mask 2, can be used to determine the tests in the hierarchical suite that were passed or failed, resulting in the Overall Quality Flag. 7. Mask 2 - These files contain a mask code, which along with Mask 1, can be used to determine the tests in the hierarchical suite that were passed or failed, resulting in the Overall Quality Flag.

The interim SST data (2007-2009) described in this metadata record were produced prior to the derivation of a final set of monthly coefficients for those years. The SST values were therefore calculated using the most recent set of coefficients available, and are considered Interim Pathfinder Version 5.0 data and not part of the Formal Pathfinder Version 5.0 data set. The algorithm used to create Version 5.1 data (1981-1985) is different only in that it replaces the Reynolds Weekly Optimally Interpolated SST Version 2 (OISSTv2) with the Reynolds Optimum Interpolation 1/4-degree Daily SST Analysis Version 2 (DOISSTv2) as the first guess SST and in the quality control procedures. The primary effect of this change is to retain more data in the high gradient regions and in regions where meandering or feature advection is present; effect on the retrieved SST is minimal.

Note on Pathfinder Program: The Pathfinder program was jointly created by NASA and NOAA through the Earth Observing System (EOS) Program Office in 1990. The focus of the Pathfinder Program was to determine how existing satellite based data sets could be processed and used to study global change. The data sets were designed to be long time-series data processed with stable calibration and community consensus algorithms to better assist the research community. For more information, see: National Aeronautics and Space Administration (NASA). 1993. Earth Observing System (EOS) Reference Handbook, ed. G. Asrar and D. J. Dokken. Washington, D. C.: National Aeronautics and Space Administration, Earth Science Support Office, Document Resource Facility. The 4 km Pathfinder Project effort at the National Oceanic and Atmospheric Administration (NOAA) National Oceanographic Data Center (NODC) and the University of Miami's Rosenstiel School of Marine and Atmospheric Science (RSMAS) is an extension of and improvement on the sea surface temperature (SST) fields from that original NOAA/NASA AVHRR Oceans Pathfinder program.
Purpose To provide sea surface temperature data and related parameters with good temporal consistency, high accuracy and spatial resolution, and for archive and distribution through the NOAA National Oceanographic Data Center (NODC). This SST data collecton is intended primarily for climate related applications and studies and is being established to help form the basis for a Climate Data Record for SST.
Use Limitations
  • accessLevel: Public
  • 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 data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Dataset Citation
  • Cite as: Casey, Kenneth; Kearns, Edward J.; Halliwell, Vicki; Evans, Robert (2010). AVHRR Pathfinder version 5.0, interim version 5.0, and version 5.1 global 4km sea surface temperature (SST) data for 1981-2009. National Oceanographic Data Center, NOAA. Dataset. [access date]
  • Please also cite: Casey, K.S., T.B. Brandon, P. Cornillon, and R. Evans (2010). "The Past, Present and Future of the AVHRR Pathfinder SST Program", in Oceanography from Space: Revisited, eds. V. Barale, J.F.R. Gower, and L. Alberotanza, Springer. doi:10.1007/978-90-481-8681-5_16
Cited Authors
Contributors
Resource Providers
Publishers
Acknowledgments
  • This project was supported in part by a grant from the NOAA Climate Data Record (CDR) Program for satellites.
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
CoRIS Theme Thesaurus
  • EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Remote Sensing > Satellite (digital scans) > AVHRR
  • EARTH SCIENCE > Oceans > Ocean Temperature > Sea Surface Temperature > AVHRR
  • EARTH SCIENCE > Oceans > Ocean Temperature > Water Temperature
Global Change Master Directory (GCMD) Science and Services Keywords
  • EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > COASTAL
  • EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > REEF > CORAL REEF
  • EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > SEA SURFACE TEMPERATURE INDICES
  • EARTH SCIENCE > OCEANS > COASTAL PROCESSES > CORAL REEFS
  • EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE
  • EARTH SCIENCE > Oceans > Ocean Temperature > Sea Surface Temperature > AVHRR
  • EARTH SCIENCE > Oceans > Ocean Temperature > Sea Surface Temperature > AVHRR > 4km Pathfinder
  • EARTH SCIENCE > Oceans > Ocean Temperature > Sea Surface Temperature > AVHRR > 9km Pathfinder
  • EARTH SCIENCE > Oceans > Ocean Temperature > Sea Surface Temperature > AVHRR > MCSST
  • EARTH SCIENCE > Oceans > Ocean Temperature > Sea Surface Temperature > AVHRR > NLSST
  • EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > WATER CHARACTERISTICS > WATER TEMPERATURE
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS > National Environmental Satellite, Data, and Information Services, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce
NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS
Platform keywords NODC PLATFORM NAMES THESAURUS Global Change Master Directory (GCMD) Platform Keywords
  • NOAA-11 > National Oceanic & Atmospheric Administration-11
  • NOAA-14 > National Oceanic & Atmospheric Administration-14
  • NOAA-16 > National Oceanic & Atmospheric Administration-16
  • NOAA-17 > National Oceanic & Atmospheric Administration-17
  • NOAA-18 > National Oceanic & Atmospheric Administration-18
  • NOAA-7 > National Oceanic & Atmospheric Administration-7
  • NOAA-9 > National Oceanic & Atmospheric Administration-9
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Global Change Master Directory (GCMD) Instrument Keywords
  • AVHRR-2 > Advanced Very High Resolution Radiometer-2
  • AVHRR-3 > Advanced Very High Resolution Radiometer-3
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords
  • GEOGRAPHIC REGION > GLOBAL OCEAN
Project keywords NODC PROJECT NAMES THESAURUS Global Change Master Directory (GCMD) Project Keywords
  • NOAA/NASA PATHFINDER > NOAA/NASA Pathfinder Program
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Casey, Kenneth; Kearns, Edward J.; Halliwell, Vicki; Evans, Robert (2010). AVHRR Pathfinder version 5.0, interim version 5.0, and version 5.1 global 4km sea surface temperature (SST) data for 1981-2009. National Oceanographic Data Center, NOAA. Dataset. [access date]
  • Please also cite: Casey, K.S., T.B. Brandon, P. Cornillon, and R. Evans (2010). "The Past, Present and Future of the AVHRR Pathfinder SST Program", in Oceanography from Space: Revisited, eds. V. Barale, J.F.R. Gower, and L. Alberotanza, Springer. doi:10.1007/978-90-481-8681-5_16
  • Please acknowledge the use of these data with the following statement: These data were provided by GHRSST and the NOAA National Centers for Environmental Information.
Access Constraints
  • 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.
Fees
  • Digital data may be downloaded from NCEI at no charge in most cases. For custom orders of digital data or to obtain a copy of analog materials, please contact NCEI Information Services for information about current fees.
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  • 2011-01-09T17:35:04 - NCEI Accession 0051834 v1.1 was published.
  • 2011-01-09T17:35:09 - NCEI Accession 0051836 v1.1 was published.
  • 2011-01-09T17:36:22 - NCEI Accession 0051840 v1.1 was published.
  • 2011-01-09T17:36:34 - NCEI Accession 0051845 v1.1 was published.
  • 2011-01-10T19:08:55 - NCEI Accession 0001783 was revised and v2.2 was published.
  • 2011-01-10T19:33:28 - NCEI Accession 0001784 was revised and v2.2 was published.
  • 2011-01-10T19:59:30 - NCEI Accession 0001785 was revised and v2.2 was published.
  • 2011-01-10T20:25:34 - NCEI Accession 0001786 was revised and v2.2 was published.
  • 2011-01-10T20:50:41 - NCEI Accession 0001787 was revised and v2.2 was published.
  • 2011-01-10T21:30:07 - NCEI Accession 0001788 was revised and v2.2 was published.
  • 2011-01-10T22:02:13 - NCEI Accession 0001789 was revised and v2.2 was published.
  • 2011-01-10T22:23:36 - NCEI Accession 0001790 was revised and v2.2 was published.
  • 2011-01-10T22:46:33 - NCEI Accession 0001791 was revised and v2.2 was published.
  • 2011-01-10T23:11:59 - NCEI Accession 0001792 was revised and v2.2 was published.
  • 2011-01-10T23:35:34 - NCEI Accession 0001793 was revised and v2.2 was published.
  • 2011-01-10T23:59:56 - NCEI Accession 0001794 was revised and v2.2 was published.
  • 2011-01-11T00:23:50 - NCEI Accession 0001795 was revised and v2.2 was published.
  • 2011-01-11T00:44:33 - NCEI Accession 0001796 was revised and v2.2 was published.
  • 2011-01-11T04:24:13 - NCEI Accession 0001826 v1.1 was published.
  • 2011-01-11T05:14:19 - NCEI Accession 0001827 v1.1 was published.
  • 2011-01-12T01:49:31 - NCEI Accession 0001821 v1.1 was published.
  • 2011-01-12T01:49:50 - NCEI Accession 0001824 v1.1 was published.
  • 2011-01-12T01:50:02 - NCEI Accession 0001828 v1.1 was published.
  • 2011-01-12T03:49:55 - NCEI Accession 0001822 v1.1 was published.
  • 2011-01-12T03:50:05 - NCEI Accession 0001823 v1.1 was published.
  • 2011-01-12T03:50:13 - NCEI Accession 0001830 v1.1 was published.
  • 2011-01-13T17:07:13 - NCEI Accession 0001817 was revised and v2.2 was published.
  • 2011-01-13T19:10:12 - NCEI Accession 0001821 was revised and v2.2 was published.
  • 2011-01-13T21:20:05 - NCEI Accession 0001822 was revised and v2.2 was published.
  • 2011-01-13T23:35:22 - NCEI Accession 0001823 was revised and v2.2 was published.
  • 2011-01-14T01:54:43 - NCEI Accession 0001824 was revised and v2.2 was published.
  • 2011-01-14T04:11:13 - NCEI Accession 0001826 was revised and v2.2 was published.
  • 2011-01-14T06:04:43 - NCEI Accession 0045495 v1.1 was published.
  • 2011-01-14T06:18:33 - NCEI Accession 0001827 was revised and v2.2 was published.
  • 2011-01-14T21:47:59 - NCEI Accession 0001818 was revised and v2.2 was published.
  • 2011-01-14T23:22:58 - NCEI Accession 0001819 was revised and v2.2 was published.
  • 2011-01-15T00:59:53 - NCEI Accession 0001820 was revised and v2.2 was published.
  • 2011-01-19T16:59:08 - NCEI Accession 0001825 was revised and v2.2 was published.
  • 2011-01-19T19:09:14 - NCEI Accession 0001828 was revised and v2.2 was published.
  • 2011-01-24T20:15:15 - NCEI Accession 0001829 was revised and v2.2 was published.
  • 2011-01-24T22:33:14 - NCEI Accession 0001830 was revised and v2.2 was published.
  • 2011-01-25T20:33:13 - NCEI Accession 0001834 was revised and v2.2 was published.
  • 2011-01-25T20:42:16 - NCEI Accession 0001835 was revised and v2.2 was published.
  • 2011-01-25T20:50:11 - NCEI Accession 0001836 was revised and v2.2 was published.
  • 2011-01-25T20:57:50 - NCEI Accession 0001837 was revised and v2.2 was published.
  • 2011-01-25T21:04:30 - NCEI Accession 0001838 was revised and v2.2 was published.
  • 2011-01-25T21:12:50 - NCEI Accession 0001839 was revised and v2.2 was published.
  • 2011-01-25T21:20:31 - NCEI Accession 0001840 was revised and v2.2 was published.
  • 2011-01-26T18:24:35 - NCEI Accession 0001841 was revised and v2.2 was published.
  • 2011-01-26T18:31:26 - NCEI Accession 0001842 was revised and v2.2 was published.
  • 2011-01-26T18:37:55 - NCEI Accession 0001843 was revised and v2.2 was published.
  • 2011-01-26T18:44:19 - NCEI Accession 0001844 was revised and v2.2 was published.
  • 2011-01-26T18:51:40 - NCEI Accession 0001845 was revised and v2.2 was published.
  • 2011-01-26T18:58:19 - NCEI Accession 0001846 was revised and v2.2 was published.
  • 2011-01-26T19:04:28 - NCEI Accession 0001847 was revised and v2.2 was published.
  • 2011-02-02T06:40:11 - NCEI Accession 0043742 was revised and v2.2 was published.
  • 2011-02-02T18:55:09 - NCEI Accession 0043736 v1.1 was published.
  • 2011-02-02T18:55:10 - NCEI Accession 0043736 was revised and v2.2 was published.
  • 2011-02-09T20:20:11 - NCEI Accession 0043732 was revised and v2.2 was published.
  • 2011-02-09T20:27:05 - NCEI Accession 0043738 was revised and v2.2 was published.
  • 2011-02-09T20:33:22 - NCEI Accession 0043744 was revised and v2.2 was published.
  • 2011-02-10T18:51:22 - NCEI Accession 0043733 was revised and v2.2 was published.
  • 2011-02-10T20:01:19 - NCEI Accession 0043739 was revised and v2.2 was published.
  • 2011-02-10T20:53:00 - NCEI Accession 0043745 was revised and v2.2 was published.
  • 2011-02-14T18:55:59 - NCEI Accession 0043734 was revised and v2.2 was published.
  • 2011-02-14T19:21:45 - NCEI Accession 0043740 was revised and v2.2 was published.
  • 2011-02-14T19:47:05 - NCEI Accession 0043746 was revised and v2.2 was published.
  • 2011-02-17T20:14:43 - NCEI Accession 0043749 v1.1 was published.
  • 2011-02-17T20:14:45 - NCEI Accession 0043749 was revised and v2.2 was published.
  • 2011-02-17T20:26:40 - NCEI Accession 0043751 v1.1 was published.
  • 2011-02-17T20:26:42 - NCEI Accession 0043751 was revised and v2.2 was published.
  • 2011-02-17T20:44:06 - NCEI Accession 0043752 v1.1 was published.
  • 2011-02-17T20:44:07 - NCEI Accession 0043752 was revised and v2.2 was published.
  • 2011-02-17T22:08:26 - NCEI Accession 0043753 v1.1 was published.
  • 2011-02-17T22:08:27 - NCEI Accession 0043753 was revised and v2.2 was published.
  • 2011-02-22T02:17:45 - NCEI Accession 0043754 v1.1 was published.
  • 2011-02-22T02:17:45 - NCEI Accession 0043754 was revised and v2.2 was published.
  • 2011-02-22T02:21:08 - NCEI Accession 0043755 v1.1 was published.
  • 2011-02-22T02:21:09 - NCEI Accession 0043755 was revised and v2.2 was published.
  • 2011-02-22T02:34:27 - NCEI Accession 0043756 v1.1 was published.
  • 2011-02-22T02:34:28 - NCEI Accession 0043756 was revised and v2.2 was published.
  • 2011-02-22T02:43:34 - NCEI Accession 0043757 v1.1 was published.
  • 2011-02-22T02:43:35 - NCEI Accession 0043757 was revised and v2.2 was published.
  • 2011-02-22T04:35:11 - NCEI Accession 0045498 v1.1 was published.
  • 2011-02-22T04:35:12 - NCEI Accession 0045498 was revised and v2.2 was published.
  • 2011-02-23T04:35:04 - NCEI Accession 0043758 v1.1 was published.
  • 2011-02-23T04:35:05 - NCEI Accession 0043758 was revised and v2.2 was published.
  • 2011-02-23T04:59:07 - NCEI Accession 0043750 v1.1 was published.
  • 2011-02-23T04:59:08 - NCEI Accession 0043750 was revised and v2.2 was published.
  • 2011-02-23T04:59:09 - NCEI Accession 0043750 was revised and v3.3 was published.
  • 2011-02-23T04:59:09 - NCEI Accession 0043750 was revised and v4.4 was published.
  • 2011-02-23T21:32:49 - NCEI Accession 0051818 v1.1 was published.
  • 2011-02-23T21:32:50 - NCEI Accession 0051818 was revised and v2.2 was published.
  • 2011-02-24T18:00:02 - NCEI Accession 0051819 v1.1 was published.
  • 2011-02-24T18:00:04 - NCEI Accession 0051819 was revised and v2.2 was published.
  • 2011-02-24T18:10:49 - NCEI Accession 0051820 v1.1 was published.
  • 2011-02-24T18:10:49 - NCEI Accession 0051820 was revised and v2.2 was published.
  • 2011-02-24T18:20:07 - NCEI Accession 0051821 v1.1 was published.
  • 2011-02-24T18:20:07 - NCEI Accession 0051821 was revised and v2.2 was published.
  • 2011-02-24T19:01:23 - NCEI Accession 0051823 v1.1 was published.
  • 2011-02-24T19:01:24 - NCEI Accession 0051823 was revised and v2.2 was published.
  • 2011-02-24T19:51:50 - NCEI Accession 0051825 v1.1 was published.
  • 2011-02-24T19:51:51 - NCEI Accession 0051825 was revised and v2.2 was published.
  • 2011-02-24T20:08:12 - NCEI Accession 0051826 v1.1 was published.
  • 2011-02-24T20:08:12 - NCEI Accession 0051826 was revised and v2.2 was published.
  • 2011-02-24T20:25:39 - NCEI Accession 0051827 v1.1 was published.
  • 2011-02-24T20:25:40 - NCEI Accession 0051827 was revised and v2.2 was published.
  • 2011-02-24T21:21:02 - NCEI Accession 0051829 v1.1 was published.
  • 2011-02-24T21:21:04 - NCEI Accession 0051829 was revised and v2.2 was published.
  • 2011-02-24T22:14:18 - NCEI Accession 0051831 v1.1 was published.
  • 2011-02-24T22:14:19 - NCEI Accession 0051831 was revised and v2.2 was published.
  • 2011-02-24T22:30:24 - NCEI Accession 0051832 v1.1 was published.
  • 2011-02-24T22:30:25 - NCEI Accession 0051832 was revised and v2.2 was published.
  • 2011-02-24T22:43:08 - NCEI Accession 0051833 v1.1 was published.
  • 2011-02-24T22:43:08 - NCEI Accession 0051833 was revised and v2.2 was published.
  • 2011-02-25T03:05:45 - NCEI Accession 0051835 v1.1 was published.
  • 2011-02-25T03:05:46 - NCEI Accession 0051835 was revised and v2.2 was published.
  • 2011-02-25T03:42:29 - NCEI Accession 0051837 v1.1 was published.
  • 2011-02-25T03:42:30 - NCEI Accession 0051837 was revised and v2.2 was published.
  • 2011-02-25T03:56:25 - NCEI Accession 0051838 v1.1 was published.
  • 2011-02-25T03:56:25 - NCEI Accession 0051838 was revised and v2.2 was published.
  • 2011-02-25T16:06:07 - NCEI Accession 0051839 v1.1 was published.
  • 2011-02-25T16:06:08 - NCEI Accession 0051839 was revised and v2.2 was published.
  • 2011-02-25T16:14:49 - NCEI Accession 0051841 v1.1 was published.
  • 2011-02-25T16:14:50 - NCEI Accession 0051841 was revised and v2.2 was published.
  • 2011-02-25T16:21:11 - NCEI Accession 0051842 v1.1 was published.
  • 2011-02-25T16:21:12 - NCEI Accession 0051842 was revised and v2.2 was published.
  • 2011-02-25T16:22:22 - NCEI Accession 0051843 v1.1 was published.
  • 2011-02-25T16:22:22 - NCEI Accession 0051843 was revised and v2.2 was published.
  • 2011-02-25T16:27:09 - NCEI Accession 0051844 v1.1 was published.
  • 2011-02-25T16:27:09 - NCEI Accession 0051844 was revised and v2.2 was published.
  • 2011-03-02T20:32:52 - NCEI Accession 0062474 v1.1 was published.
  • 2011-03-02T20:32:52 - NCEI Accession 0062474 was revised and v2.2 was published.
  • 2011-03-03T21:01:44 - NCEI Accession 0043753 was revised and v3.3 was published.
  • 2011-03-03T22:29:16 - NCEI Accession 0001763 v1.1 was published.
  • 2011-03-03T22:29:17 - NCEI Accession 0001763 was revised and v2.2 was published.
  • 2011-03-03T22:46:49 - NCEI Accession 0001764 v1.1 was published.
  • 2011-03-03T22:46:50 - NCEI Accession 0001764 was revised and v2.2 was published.
  • 2011-03-04T03:36:23 - NCEI Accession 0001765 v1.1 was published.
  • 2011-03-04T03:36:24 - NCEI Accession 0001765 was revised and v2.2 was published.
  • 2011-03-04T03:46:38 - NCEI Accession 0001780 v1.1 was published.
  • 2011-03-04T03:46:38 - NCEI Accession 0001780 was revised and v2.2 was published.
  • 2011-03-04T03:56:53 - NCEI Accession 0001781 v1.1 was published.
  • 2011-03-04T03:56:54 - NCEI Accession 0001781 was revised and v2.2 was published.
  • 2011-03-04T04:07:29 - NCEI Accession 0001782 v1.1 was published.
  • 2011-03-04T04:07:29 - NCEI Accession 0001782 was revised and v2.2 was published.
  • 2011-03-04T21:18:04 - NCEI Accession 0001831 v1.1 was published.
  • 2011-03-04T21:18:04 - NCEI Accession 0001831 was revised and v2.2 was published.
  • 2011-03-04T21:20:55 - NCEI Accession 0001832 v1.1 was published.
  • 2011-03-04T21:20:55 - NCEI Accession 0001832 was revised and v2.2 was published.
  • 2011-03-04T21:23:54 - NCEI Accession 0001833 v1.1 was published.
  • 2011-03-04T21:23:54 - NCEI Accession 0001833 was revised and v2.2 was published.
  • 2011-03-07T21:07:36 - NCEI Accession 0001814 v1.1 was published.
  • 2011-03-07T21:07:36 - NCEI Accession 0001814 was revised and v2.2 was published.
  • 2011-03-07T21:51:51 - NCEI Accession 0001815 v1.1 was published.
  • 2011-03-07T21:51:51 - NCEI Accession 0001815 was revised and v2.2 was published.
  • 2011-03-07T22:36:43 - NCEI Accession 0001816 v1.1 was published.
  • 2011-03-07T22:36:43 - NCEI Accession 0001816 was revised and v2.2 was published.
  • 2011-03-23T16:15:30 - NCEI Accession 0043749 was revised and v3.3 was published.
  • 2011-03-23T16:22:22 - NCEI Accession 0043755 was revised and v3.3 was published.
  • 2011-03-23T16:50:49 - NCEI Accession 0043756 was revised and v3.3 was published.
  • 2011-03-24T15:38:02 - NCEI Accession 0043751 was revised and v3.3 was published.
  • 2011-03-24T16:04:34 - NCEI Accession 0043757 was revised and v3.3 was published.
  • 2011-03-25T18:38:56 - NCEI Accession 0045498 was revised and v3.3 was published.
  • 2011-06-30T02:54:02 - NCEI Accession 0045494 v1.1 was published.
  • 2015-02-11T19:43:07 - NCEI Accession 0054496 v1.1 was published.
  • 2015-02-11T19:43:10 - NCEI Accession 0054496 was revised and v2.2 was published.
  • 2016-10-24T20:58:26 - NCEI Accession 0043730 v1.1 was published.
  • 2016-10-24T20:58:26 - NCEI Accession 0043730 was revised and v2.2 was published.
  • 2017-06-05T18:09:15 - NCEI Accession 0043748 v1.1 was published.
  • 2017-06-05T18:09:15 - NCEI Accession 0043748 was revised and v2.2 was published.
  • 2017-06-05T18:09:16 - NCEI Accession 0043748 was revised and v3.3 was published.
Processing Environment Native Dataset Environment: NCSA Hierarchical Data Format (HDF 4), Scientific Data Set (HDF-SDS) This set of NODC accessions contains yearly, daily, monthly, 8-day, 7-day, and 5-day v5.0 and 5.1 files, which follow the file naming convention described below. Each file also has an accompanying low-resolution graphic. OBSDATE.[BITCODE][RESO][AVGPERIOD][DAYNIGHT][VER]-TYPE(-BITS).hdf (for example: 1985.s04y1pfv50-bsst-16b.hdf) Where: OBSDATE = The date(s) the observations were made. OBSDATE may be in one of the following forms: - Daily Files: YYYYDDD, with: YYYY = 4 digit year of observation (1985-200x) DDD = 3 digit day of year (001-365, or 001-366 for leap years) (For help converting between calendar dates and day of year, please see our Calendar Date Conversion Chart) - 5-Day Files: SYYYYDDD-EYYYYDDD, with: SYYYYDDD = starting 4-digit year and 3-digit day EYYYYDDD = ending 4-digit year and 3-digit day - 7-Day Files: YYYYWW, with: YYYY = 4 digit year of observation WW = 2-digit week number between 01 and 52 - 8-Day Files: SYYYYDDD-EYYYYDDD, with: SYYYYDDD = starting 4-digit year and 3-digit day EYYYYDDD = ending 4-digit year and 3-digit day - Monthly Files: YYYYMM, with: YYYY = 4 digit year of observation MM = 2-digit month between 01 and 12 - Yearly Files: YYYY, with: YYYY = 4 digit year of observation BITCODE = Indicates the bit length of the pixel values in the file. s is for 16 bit files, m is for 8 bit files (see BITS below) RESO = Approximate resolution in km. Set to 04 for 4 km files AVGPERIOD = Indicates the averaging period used to create the file. AVGPERIOD may be in one of the following forms: Daily Files = d 5-Day Files = 5 7-Day Files = w 8-Day Files = 8 Monthly Files = m Yearly Files = y DAYNIGHT = Indicates nighttime, descending pass (1 or 4) or daytime, ascending pass (3 or 2) observations. VER indicates version, pfv50 or pfv51 = Shorthand for Pathfinder Version 5.0 or 5.1; pfrt denotes interim data and stands for "Pathfinder Real Time." TYPE indicates the type of data stored in the file, and may be one of the following: sst: Pathfinder all-pixel SST; bsst: first-guess SST field, either OISSTv2 for pfv50/pfrt or DOISSTv2 for pfv51; sdev: Standard deviation; num: Number of observations; qual: Overall quality value; msk1: Quality mask 1; msk2: Quality mask 2. BITS = Number of bits in each pixel; only present for 16-bit files (-16b). hdf indicates HDF-SDS Version 4 file format. Technical Prerequisites: Web browser, PC, MAC, Linux, UNIX, FTP or other download capability. Ability to work with .HDF satellite data files strongly suggested.
Output Datasets
Lineage information for: repository
Processing Steps
  • 2015-04-22T00:00:00 - 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.
Acquisition Information (collection)
Instrument
  • AVHRR-2
  • AVHRR-3
Platform
  • NOAA-11
  • NOAA-14
  • NOAA-16
  • NOAA-17
  • NOAA-18
  • NOAA-7
  • NOAA-9
Last Modified: 2018-07-17T16:23:54
For questions about the information on this page, please email: NODC.DataOfficer@noaa.gov