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                 source="https://www.fisheries.noaa.gov">
   <item-identification>
      <catalog-item-id>66214</catalog-item-id>
      <title>Wave Energy Period</title>
      <catalog-item-type>Data Set</catalog-item-type>
      <metadata-workflow-state ccs-id="9">Published / External</metadata-workflow-state>
      <parent-catalog-item-id>37232</parent-catalog-item-id>
      <parent-title>MarineCadastre</parent-title>
      <parent-catalog-item-type>Project</parent-catalog-item-type>
      <status>Completed</status>
      <abstract>Wave energy period is a sea state parameter, derived from the zeroth and first negative moments of the frequency spectrum. It is the period corresponding to the weighted average of the wave energy. Wave energy period values in this dataset are represented in seconds. The Wave Energy Resource Assessment project is a joint venture between NREL and Virginia Tech. NREL is the prime contractor and Virginia Tech is responsible for development of the models and estimating the wave resource. NREL also serves as an independent validator and also develops the final GIS-based display of the data. Data represent monthly summaries for the time period from January 1980 to December 2009 (30 years) for the following parameters: significant wave height (ssh), wave energy period (wep), and wave hindcast direction (dfp). For complete details regarding this study please read the full report, available here: https://openei.org/datasets/dataset/mapping-and-assessment-of-the-united-states-ocean-wave-energy-resource. A note about the data: Bathymetric effects are known to have a large effect on wave characteristics at depths shallower than approximately 20m (\~65 ft) on the Atlantic coast and 50 m (\~160 ft) on the Pacific coast. A variance between depths exists due to the feature differences for each continental shelf. The methodology used in this resource assessment precludes providing site-specific information to such developers. Reliable site-specific information in shallow waters can only be produced using results from models with higher spatial resolution that include shallow-water physics. The wave resource assessment group acknowledges that its results will not be accurate in the shallower waters of the inner continental shelf. These shallow water regions are located within the dark gray boundaries on the map.</abstract>
      <purpose>To support ocean planning activities pursuant to the Executive Order Regarding the Ocean Policy to Advance the Economic, Security, and Environmental Interests of the United States, the Energy Policy Act, the National Environmental Policy Act, the Rivers and Harbors Act, and the Coastal Zone Management Act.</purpose>
      <supplemental-information>Mean annual</supplemental-information>
   </item-identification>
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      <keyword controlled="Yes">
         <keyword-type>Theme</keyword-type>
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         <keyword identifier="d81b77be-0177-4e26-942c-aa911239482d">EARTH SCIENCE &gt; HUMAN DIMENSIONS &gt; ENVIRONMENTAL GOVERNANCE/MANAGEMENT</keyword>
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         <thesaurus>ISO 19115 Topic Category</thesaurus>
         <keyword>environment</keyword>
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      <keyword controlled="Yes">
         <keyword-type>Theme</keyword-type>
         <thesaurus>ISO 19115 Topic Category</thesaurus>
         <keyword>farming</keyword>
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      <keyword controlled="Yes">
         <keyword-type>Theme</keyword-type>
         <thesaurus>ISO 19115 Topic Category</thesaurus>
         <keyword>oceans</keyword>
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      <keyword controlled="Yes">
         <keyword-type>Theme</keyword-type>
         <thesaurus>ISO 19115 Topic Category</thesaurus>
         <keyword>planningCadastre</keyword>
      </keyword>
      <keyword controlled="Yes">
         <keyword-type>Spatial</keyword-type>
         <thesaurus version="23.3">Global Change Master Directory (GCMD) Location Keywords</thesaurus>
         <keyword identifier="753f915c-70d4-49e1-9bd5-83e75f461e30">CONTINENT &gt; NORTH AMERICA &gt; UNITED STATES OF AMERICA</keyword>
      </keyword>
      <keyword controlled="No">
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         <keyword>United States</keyword>
      </keyword>
      <keyword controlled="No">
         <keyword-type>Theme</keyword-type>
         <keyword>alternative energy planning</keyword>
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      <keyword controlled="No">
         <keyword-type>Theme</keyword-type>
         <keyword>coastal energy planning</keyword>
      </keyword>
      <keyword controlled="No">
         <keyword-type>Theme</keyword-type>
         <keyword>environment</keyword>
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      <keyword controlled="No">
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      <keyword controlled="No">
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         <keyword>environmental energy planning</keyword>
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      <keyword controlled="No">
         <keyword-type>Theme</keyword-type>
         <keyword>farming</keyword>
      </keyword>
      <keyword controlled="No">
         <keyword-type>Theme</keyword-type>
         <keyword>marine cadastre</keyword>
      </keyword>
      <keyword controlled="No">
         <keyword-type>Theme</keyword-type>
         <keyword>marine spatial planning</keyword>
      </keyword>
      <keyword controlled="No">
         <keyword-type>Theme</keyword-type>
         <keyword>national</keyword>
      </keyword>
      <keyword controlled="No">
         <keyword-type>Theme</keyword-type>
         <keyword>ocean energy planning</keyword>
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      <keyword controlled="No">
         <keyword-type>Theme</keyword-type>
         <keyword>oceans</keyword>
      </keyword>
      <keyword controlled="No">
         <keyword-type>Theme</keyword-type>
         <keyword>offshore energy planning</keyword>
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         <keyword>planningCadastre</keyword>
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      <keyword controlled="No">
         <keyword-type>Theme</keyword-type>
         <keyword>renewable energy planning</keyword>
      </keyword>
      <keyword controlled="No">
         <keyword-type>Theme</keyword-type>
         <keyword>wave energy planning</keyword>
      </keyword>
      <keyword controlled="No">
         <keyword-type>Theme</keyword-type>
         <keyword>wave energy production</keyword>
      </keyword>
      <keyword controlled="No">
         <keyword-type>Spatial</keyword-type>
         <keyword>Atlantic</keyword>
      </keyword>
      <keyword controlled="No">
         <keyword-type>Spatial</keyword-type>
         <keyword>Pacific</keyword>
      </keyword>
   </keywords>
   <physical-location>
      <city>Charleston</city>
      <state-province>SC</state-province>
   </physical-location>
   <data-set-information>
      <data-set-scope-code>Data Set</data-set-scope-code>
      <maintenance-frequency>As Needed</maintenance-frequency>
      <data-presentation-form>Map (digital)</data-presentation-form>
      <distribution-liability>https://www.marinecadastre.gov/about/disclaimer.html</distribution-liability>
      <data-set-credit>Department of Energy National Renewable Energy Laboratory, NOAA National Centers for Coastal Ocean Science, Bureau of Ocean Energy Management, NOAA Office for Coastal Management</data-set-credit>
   </data-set-information>
   <entity-attribute-information partial-listing="No" total-count="1">
      <entity>
         <item-identification>
            <catalog-item-id>66215</catalog-item-id>
            <title>Wave Energy Period (Annual Mean)</title>
            <metadata-workflow-state ccs-id="9">Published / External</metadata-workflow-state>
         </item-identification>
         <entity-information>
            <entity-type>GIS File</entity-type>
            <active-version>Yes</active-version>
            <description>Wave Enery Period Monthly and Annual Summaries; Source: Department of Energy (DOE), National Renewable Energy Laboratory (NREL), Alliance for Sustainable Energy, LLC (ALLIANCE)</description>
         </entity-information>
         <data-attributes partial-listing="No" total-count="5">
            <data-attribute cc-id="1117357">
               <seq-order>1</seq-order>
               <name>OBJECTID</name>
               <data-storage-type>n/a</data-storage-type>
               <required>No</required>
               <primary-key>No</primary-key>
               <status>Active</status>
               <description>Internal feature number.; Source: Esri</description>
               <allowed-values>Sequential unique whole numbers that are automatically generated.</allowed-values>
            </data-attribute>
            <data-attribute cc-id="1117361">
               <seq-order>2</seq-order>
               <name>ann_wep</name>
               <data-storage-type>n/a</data-storage-type>
               <required>No</required>
               <primary-key>No</primary-key>
               <status>Active</status>
               <description>Grid value for the parameter Wave Energy Period (in seconds). In the attribute title, 'ann' represents an Annual average. For monthly summaries, the first three leters of the month are represented in the attribute title.; Source: Department of Energy (DOE), National Renewable Energy Laboratory (NREL), Alliance for Sustainable Energy, LLC (ALLIANCE)</description>
               <allowed-values>Alphanumeric text defining the features.</allowed-values>
            </data-attribute>
            <data-attribute cc-id="1117360">
               <seq-order>3</seq-order>
               <name>Shape_Length</name>
               <data-storage-type>n/a</data-storage-type>
               <required>No</required>
               <primary-key>No</primary-key>
               <status>Active</status>
               <description>Length of feature in internal units.; Source: Esri</description>
               <allowed-values>Positive real numbers that are automatically generated.</allowed-values>
            </data-attribute>
            <data-attribute cc-id="1117359">
               <seq-order>4</seq-order>
               <name>Shape_Area</name>
               <data-storage-type>n/a</data-storage-type>
               <required>No</required>
               <primary-key>No</primary-key>
               <status>Active</status>
               <description>Area of feature in internal units squared.; Source: Esri</description>
               <allowed-values>Positive real numbers that are automatically generated.</allowed-values>
            </data-attribute>
            <data-attribute cc-id="1117358">
               <seq-order>5</seq-order>
               <name>Shape</name>
               <data-storage-type>n/a</data-storage-type>
               <required>No</required>
               <primary-key>No</primary-key>
               <status>Active</status>
               <description>Feature geometry.; Source: Esri</description>
               <allowed-values>Coordinates defining the features.</allowed-values>
            </data-attribute>
         </data-attributes>
      </entity>
   </entity-attribute-information>
   <support-roles>
      <support-role cc-id="1117346" in-effect="Yes">
         <support-role-type>Point of Contact</support-role-type>
         <from-date>2018-06</from-date>
         <contact-type>Organization</contact-type>
         <contact-name>NOAA Office for Coastal Management</contact-name>
         <contact-noaa-acronym>NOAA/OCM</contact-noaa-acronym>
         <contact-email>coastal.info@noaa.gov</contact-email>
         <contact-address>2234 South Hobson Ave</contact-address>
         <contact-address-city>Charleston</contact-address-city>
         <contact-address-state>SC</contact-address-state>
         <contact-address-zip>29405-2413</contact-address-zip>
         <contact-phone-number>(843) 740-1202</contact-phone-number>
         <contact-url>https://coast.noaa.gov</contact-url>
         <contact-url-description>NOAA Office for Coastal Management Home Page</contact-url-description>
         <contact-url-function>Online Resource</contact-url-function>
      </support-role>
   </support-roles>
   <extents>
      <currentness-reference>Publication Date</currentness-reference>
      <extent cc-id="1117355">
         <geographic-areas>
            <geographic-area cc-id="1117356">
               <west-bound>-179.998</west-bound>
               <east-bound>179.998</east-bound>
               <north-bound>63.03335</north-bound>
               <south-bound>16.96665</south-bound>
            </geographic-area>
         </geographic-areas>
      </extent>
   </extents>
   <access-information>
      <security-class>Unclassified</security-class>
      <data-use-constraints>For coastal and ocean planning</data-use-constraints>
   </access-information>
   <distribution-information>
      <distribution cc-id="1121393">
         <download-url>https://marinecadastre.gov/data/</download-url>
         <description>Marine Cadastre Data Registry</description>
      </distribution>
      <distribution cc-id="1117347">
         <download-url>https://marinecadastre.gov/downloads/data/mc/SignificantWaveHeightDirection.zip</download-url>
      </distribution>
   </distribution-information>
   <technical-environment>
      <description>Version 6.2 (Build 9200) ; Esri ArcGIS 10.5.1.7333</description>
   </technical-environment>
   <data-quality>
      <accuracy>The attributes in this dataset are believed to be accurate.</accuracy>
      <horizontal-positional-accuracy>Maximum scale of intended use is 1:80,000.</horizontal-positional-accuracy>
      <completeness-report>Spatial and attribute properties are believed to be complete, although attribute information has been simplified. Geometric thresholds from original data are preserved. No tests have been completed for exhaustiveness.</completeness-report>
      <conceptual-consistency>These data are believed to be logically consistent. Geometry is topologically clean.</conceptual-consistency>
   </data-quality>
   <lineage>
      <lineage-sources>
         <lineage-source cc-id="1117353">
            <citation-title>Wave Energy Period Monthly and Annual Summaries</citation-title>
            <contact-name>Department of Energy (DOE), National Renewable Energy Laboratory (NREL), Alliance for Sustainable Energy, LLC (ALLIANCE)</contact-name>
            <extent-type>Discrete</extent-type>
            <extent-start-date-time>2018-08-01</extent-start-date-time>
            <citation-url>https://maps.nrel.gov/mhk-atlas/</citation-url>
            <citation-url-name>Source Online Linkage</citation-url-name>
            <citation-url-description>URL where the source data were originally accessed.</citation-url-description>
            <source-contribution>Wave Energy Period Monthly and Annual Summaries</source-contribution>
         </lineage-source>
      </lineage-sources>
      <lineage-process-steps>
         <lineage-process-step cc-id="1117354">
            <sequence-number>1</sequence-number>
            <description>(1) Downloaded the data from the link above. Downloaded monthly and annual summaries for significant wave height, wave energy period, and wave hindcast direction. Data were only available for download in polygon Shapefile format. (2) Projected data to WGS 1984 World Mercator (ID: 3395).</description>
            <process-date-time>2018-08-01T00:00:00</process-date-time>
         </lineage-process-step>
      </lineage-process-steps>
   </lineage>
   <child-items>
      <child-item>
         <catalog-item-id>66215</catalog-item-id>
         <catalog-item-type>Entity</catalog-item-type>
         <title>Wave Energy Period (Annual Mean)</title>
      </child-item>
   </child-items>
   <catalog-details>
      <guid>gov.noaa.nmfs.inport:66214</guid>
      <metadata-record-created-by pers-id="21815">Brianna Key</metadata-record-created-by>
      <metadata-record-created>2021-12-22T14:01:18</metadata-record-created>
      <metadata-record-last-modified-by pers-id="21453">Daniel Martin</metadata-record-last-modified-by>
      <metadata-record-last-modified>2024-08-15T16:54:53</metadata-record-last-modified>
      <record-published>2021-12-22</record-published>
      <owner-organization>Office for Coastal Management</owner-organization>
      <owner-organization-acronym>OCM</owner-organization-acronym>
      <owner-organization-address/>
      <owner-organization-address-city/>
      <owner-organization-address-state/>
      <owner-organization-address-zip/>
      <owner-organization-address-country/>
      <owner-organization-phone/>
      <owner-organization-url/>
      <owner-organization-business-hours/>
      <owner-organization-group-id>1002</owner-organization-group-id>
      <publication-status>Public</publication-status>
      <limited-metadata-available>No</limited-metadata-available>
      <is-do-not-publish>No</is-do-not-publish>
      <metadata-last-review-date>2021-12-22</metadata-last-review-date>
      <metadata-review-frequency>1 Year</metadata-review-frequency>
      <metadata-next-review-date>2022-12-22</metadata-next-review-date>
   </catalog-details>
</inport-metadata>
