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        <gco:CharacterString>This data set contains a set of monthly and yearly global day-night sea surface temperature averages, derived from the AVHRR Pathfinder Version 5 sea surface temperature cloudscreened data set in GeoTIFF format. The AVHRR Pathfinder SST data sets provide the longest, most accurate, and highest resolution consistently-reprocessed SST climate data record from the AVHRR sensor series. These data files were produced to facilitate the utilization of high resolution Pathfinder v5.0 sea surface temperature data within geographic information system (GIS) software.

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            <gco:CharacterString>NCEI Accession 0077816 was revised and a new version of the archival package was published. Updates to existing archival packages may provide additional files or replace obsolete files. The latest version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession. Please see journal.txt in the /about directory for additional details on changes made.</gco:CharacterString>
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          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/platform/details/7052" xlink:actuate="onRequest">NOAA-14</gmx:Anchor>
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          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/platform/details/10468" xlink:actuate="onRequest">NOAA-16</gmx:Anchor>
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          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/platform/details/10614" xlink:actuate="onRequest">NOAA-17</gmx:Anchor>
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          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/platform/details/10633" xlink:actuate="onRequest">NOAA-18</gmx:Anchor>
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          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/platform/details/10632" xlink:actuate="onRequest">NOAA-7</gmx:Anchor>
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          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/platform/details/10462" xlink:actuate="onRequest">NOAA-9</gmx:Anchor>
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            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="project">project</gmd:MD_KeywordTypeCode>
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            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="place">place</gmd:MD_KeywordTypeCode>
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                <gco:CharacterString>NODC SEA AREA NAMES THESAURUS</gco:CharacterString>
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        <gmd:MD_LegalConstraints>
          <gmd:accessConstraints>
            <gmd:MD_RestrictionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_RestrictionCode" codeListValue="otherRestrictions">otherRestrictions</gmd:MD_RestrictionCode>
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          <gmd:otherConstraints>
            <gco:CharacterString>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.</gco:CharacterString>
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        </gmd:MD_LegalConstraints>
      </gmd:resourceConstraints>
      <gmd:resourceConstraints xlink:title="Provider Use Limitation Statement">
        <gmd:MD_Constraints>
          <gmd:useLimitation>
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      <gmd:aggregationInfo>
        <gmd:MD_AggregateInformation>
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            <gmd:CI_Citation>
              <gmd:title>
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                  <gmd:dateType>
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                          <gmd:linkage>
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      <gmd:topicCategory>
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      <gmd:topicCategory>
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During the averaging process, NODATA pixels were not included; data pixels with no corresponding data pixels were maintained as their original number to maximize the amount of available data. The complete product development process is available in NODC_Path5_means_methodology.pdf in the about directory of this accession.

The NODC collection of value-added, cloud-screened products in HDF4 were developed from original AVHRR Pathfinder files archived at the NODC.  These products contain daytime, nighttime, and day-night averaged data of quality flags 4-7, as well as standard deviation and pixel count information.  They have been produced from the original Pathfinder Version 5.0 data by NODC for Daily, 5-day, 7-day, and monthly temporal averages at 4km and one degree spatial resolution, as well as five degree spatial  resolution for monthly products. The monthly full resolution products were utilized to develop the final GIS files of this data set.  While these cloudscreened files are derived from official Pathfinder Version 5.0 data, they are NOT part of the official NODC Version 5.0 collection.  To access this collection use the Version5.0/ directory at the NODC's Pathfinder section of the website.  For more information on their provenance, contents, or relationship to official Pathfinder Version 5.0 data, please contact NODC.</gco:CharacterString>
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                                    <gco:CharacterString>published 2011-09-29T00:06:14Z</gco:CharacterString>
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                                    <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="download">download</gmd:CI_OnLineFunctionCode>
                                  </gmd:function>
                                </gmd:CI_OnlineResource>
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            <gmi:LE_ProcessStep>
              <gmd:description>
                <gco:CharacterString>NCEI Accession 0077816 was revised and v2.4 was published.</gco:CharacterString>
              </gmd:description>
              <gmd:rationale>
                <gco:CharacterString>Additional metadata files were received or created for this dataset. These updates were copied into the about/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.</gco:CharacterString>
              </gmd:rationale>
              <gmd:dateTime>
                <gco:DateTime>2022-01-11T21:26:03Z</gco:DateTime>
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                    <gmd:CI_Citation>
                      <gmd:title>
                        <gco:CharacterString>NCEI Accession 0077816 v2.4</gco:CharacterString>
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                          <gmd:date gco:nilReason="inapplicable" />
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                            <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication">publication</gmd:CI_DateTypeCode>
                          </gmd:dateType>
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                          <gmd:contactInfo>
                            <gmd:CI_Contact>
                              <gmd:onlineResource>
                                <gmd:CI_OnlineResource>
                                  <gmd:linkage>
                                    <gmd:URL>https://www.ncei.noaa.gov/archive/accession/0077816/2.4</gmd:URL>
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                                  <gmd:protocol>
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                                    <gco:CharacterString>NCEI Accession 0077816 v2.4</gco:CharacterString>
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                                    <gco:CharacterString>published 2022-01-11T21:26:03Z</gco:CharacterString>
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                                  <gmd:function>
                                    <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="download">download</gmd:CI_OnLineFunctionCode>
                                  </gmd:function>
                                </gmd:CI_OnlineResource>
                              </gmd:onlineResource>
                            </gmd:CI_Contact>
                          </gmd:contactInfo>
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                        </gmd:CI_ResponsibleParty>
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    </gmd:DQ_DataQuality>
  </gmd:dataQualityInfo>
  <gmd:dataQualityInfo>
    <gmd:DQ_DataQuality>
      <gmd:scope>
        <gmd:DQ_Scope>
          <gmd:level>
            <gmd:MD_ScopeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_ScopeCode" codeListValue="repository">repository</gmd:MD_ScopeCode>
          </gmd:level>
          <gmd:levelDescription>
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              <gmd:other>
                <gco:CharacterString>NOAA National Centers for Environmental Information</gco:CharacterString>
              </gmd:other>
            </gmd:MD_ScopeDescription>
          </gmd:levelDescription>
        </gmd:DQ_Scope>
      </gmd:scope>
      <gmd:lineage>
        <gmd:LI_Lineage>
          <gmd:processStep>
            <gmi:LE_ProcessStep>
              <gmd:description>
                <gco:CharacterString>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.</gco:CharacterString>
              </gmd:description>
              <gmd:dateTime>
                <gco:DateTime>2015-04-22T00:00:00</gco:DateTime>
              </gmd:dateTime>
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          </gmd:processStep>
        </gmd:LI_Lineage>
      </gmd:lineage>
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  <gmd:metadataMaintenance>
    <gmd:MD_MaintenanceInformation>
      <gmd:maintenanceAndUpdateFrequency>
        <gmd:MD_MaintenanceFrequencyCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_MaintenanceFrequencyCode" codeListValue="asNeeded">asNeeded</gmd:MD_MaintenanceFrequencyCode>
      </gmd:maintenanceAndUpdateFrequency>
      <gmd:maintenanceNote>
        <gco:CharacterString>Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness.</gco:CharacterString>
      </gmd:maintenanceNote>
      <gmd:contact>
        <gmd:CI_ResponsibleParty>
          <gmd:organisationName>
            <gco:CharacterString>NOAA National Centers for Environmental Information</gco:CharacterString>
          </gmd:organisationName>
          <gmd:role>
            <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="custodian">custodian</gmd:CI_RoleCode>
          </gmd:role>
        </gmd:CI_ResponsibleParty>
      </gmd:contact>
    </gmd:MD_MaintenanceInformation>
  </gmd:metadataMaintenance>
  <gmi:acquisitionInformation>
    <gmi:MI_AcquisitionInformation id="AMS">
      <gmi:instrument>
        <gmi:MI_Instrument id="inst_beb1">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>AVHRR</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:type>
            <gco:CharacterString>AVHRR</gco:CharacterString>
          </gmi:type>
          <gmi:description>
            <gco:CharacterString>Advanced Very High Resolution Radiometer

A meteorological satellite [instrument] with two bands that is used for large area Earth observation at 1 km spatial resolution. Source: Glossary of GIS and Remote Sensing Terms, University of Vermont. (http://fwie.fw.vt.edu/tws-gis/glossary.htm; last accessed on 09/22/2004).

Specifically, this instrument type is to be used to represent AVHRR/1: "There are two series of AVHRR instruments. Built by ITT Aerospace/Optical Division in the mid 1970s, the AVHRR/1 is a four-channel, filter-wheel spectrometer/radiometer (Appendix) while the AVHRR/2, built in the early 1980s, is identical except for the addition of Channel 5."

See https://www.ngdc.noaa.gov/ecosys/cdroms/AVHRR97_d1/avhrr3.htm</gco:CharacterString>
          </gmi:description>
        </gmi:MI_Instrument>
      </gmi:instrument>
      <gmi:platform>
        <gmi:MI_Platform id="plat_b7c1">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>NOAA-11</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:description>
            <gco:CharacterString>https://www.wmo-sat.info/oscar/satellites/view/333

Instruments: AVHRR/2 et al</gco:CharacterString>
          </gmi:description>
          <gmi:instrument gco:nilReason="missing" />
        </gmi:MI_Platform>
      </gmi:platform>
      <gmi:platform>
        <gmi:MI_Platform id="plat_a563">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>NOAA-14</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:description>
            <gco:CharacterString>https://www.wmo-sat.info/oscar/satellites/view/336

Instruments: AVHRR/2 et al</gco:CharacterString>
          </gmi:description>
          <gmi:instrument gco:nilReason="missing" />
        </gmi:MI_Platform>
      </gmi:platform>
      <gmi:platform>
        <gmi:MI_Platform id="plat_960b">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>NOAA-16</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:description>
            <gco:CharacterString>Updated information from ICES for the platform NOAA-16 from United States.

Name NOAA-16
Country(s) US: UNITED STATES
Platform Class 65: Orbiting satellite
Native Name
Synonyms
Call Sign
MMSI
IMO
Pennant
Title
Commissioned Date 2000
Decommissioned Date 2014

Notes
Polar-orbiting environmental satellite launched September 2000. 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/338

Confirmed by NOAA on 2018-07-17.</gco:CharacterString>
          </gmi:description>
          <gmi:instrument gco:nilReason="missing" />
        </gmi:MI_Platform>
      </gmi:platform>
      <gmi:platform>
        <gmi:MI_Platform id="plat_9799">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>NOAA-17</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:description>
            <gco:CharacterString>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.</gco:CharacterString>
          </gmi:description>
          <gmi:instrument gco:nilReason="missing" />
        </gmi:MI_Platform>
      </gmi:platform>
      <gmi:platform>
        <gmi:MI_Platform id="plat_9766">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>NOAA-18</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:description>
            <gco:CharacterString>Updated information from ICES for the platform NOAA-18 from United States.
Name NOAA-18
Country(s) US: UNITED STATES
Platform Class 65: Orbiting satellite
Native Name
Synonyms
Call Sign
MMSI
IMO
Pennant
Title
Commissioned Date 2005
Decommissioned Date 2016

Notes
Polar-orbiting environmental satellite launched May 2005 as NOAA-N. 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/340

Confirmed by NOAA on 2018-07-17.</gco:CharacterString>
          </gmi:description>
          <gmi:instrument gco:nilReason="missing" />
        </gmi:MI_Platform>
      </gmi:platform>
      <gmi:platform>
        <gmi:MI_Platform id="plat_9767">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>NOAA-7</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:description>
            <gco:CharacterString>Updated information from ICES for the platform NOAA-7 from UNITED STATES.

Name NOAA-7
Country(s) US: UNITED STATES
Platform Class 65: Orbiting satellite
Commissioned Date 1981-06-23
Decommissioned Date 1986-06-07
Notes
Selected global data available from NOAA.
Significant contribution to Space weather and operational meteorology.

Information source (URL)
https://www.wmo-sat.info/oscar/satellites/view/329

All known Instruments flying on NOAA-7

Acronym	- Full name
Argos	- Argos Data Collection System
AVHRR/2	- Advanced Very High Resolution Radiometer / 2
HIRS/2	- High-resolution Infra Red Sounder / 2
MSU	- Microwave Sounding Unit
SSU	- Stratospheric Sounding Unit
SEM/MEPED - SEM / Medium energy proton detector
SEM/TED	- SEM / Total Energy Detector

Submitted to ICES on 2018-07-17.
Confirmed by NOAA on 2018-08-08.</gco:CharacterString>
          </gmi:description>
          <gmi:instrument gco:nilReason="missing" />
        </gmi:MI_Platform>
      </gmi:platform>
      <gmi:platform>
        <gmi:MI_Platform id="plat_9631">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>NOAA-9</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:description>
            <gco:CharacterString>Updated information from ICES for the platform NOAA-9 from UNITED STATES.

Name NOAA-9
Country(s) US: UNITED STATES
Platform Class 65: Orbiting satellite
Confirmed by NOAA on 2018-08-08.
Commissioned Date 1984-12-12
Decommissioned Date 1998-02-13

Notes
Selected global operational meteorology data available from NOAA.
Significant contribution to Atmospheric chemistry and Space weather.

All known Instruments flying on NOAA-9

Acronym	- Full name
Argos		- Argos Data Collection System
AVHRR/2		- Advanced Very High Resolution Radiometer / 2
ERBE		- Earth Radiation Budget Experiment
HIRS/2		- High-resolution Infra Red Sounder / 2
MSU		- Microwave Sounding Unit
S&amp;RSAT		- Search &amp; Rescue Satellite-Aided Tracking System
SBUV/2		- Solar Backscatter Ultraviolet / 2
SSU		- Stratospheric Sounding Unit
SEM/MEPED	- SEM / Medium energy proton detector
SEM/TED		- SEM / Total Energy Detector

Information source (URL)
https://www.wmo-sat.info/oscar/satellites/view/331

Submitted to ICES on 2018-07-17.
Confirmed by NOAA on 2018-08-08.</gco:CharacterString>
          </gmi:description>
          <gmi:instrument gco:nilReason="missing" />
        </gmi:MI_Platform>
      </gmi:platform>
    </gmi:MI_AcquisitionInformation>
  </gmi:acquisitionInformation>
</gmi:MI_Metadata>