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	                     <gmd:title>
	                        <gco:CharacterString>NASA / GCMD Project Keywords</gco:CharacterString>
	</gmd:title>
	                  <gmd:date>
	                     <gmd:CI_Date>
	                        <gmd:date>                           <gco:Date>2008-01-24</gco:Date>
	</gmd:date>
	                        <gmd:dateType>
	<gmd:CI_DateTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="revision">revision</gmd:CI_DateTypeCode>
	                        </gmd:dateType>
	                     </gmd:CI_Date>
	                  </gmd:date>
	                  </gmd:CI_Citation>
	               </gmd:thesaurusName>
	         </gmd:MD_Keywords>
	      </gmd:descriptiveKeywords>
	      <gmd:descriptiveKeywords>
	         <gmd:MD_Keywords>
	            <gmd:keyword>
	               <gco:CharacterString>Antarctic Sea Ice</gco:CharacterString>
	            </gmd:keyword>
	            <gmd:keyword>
	               <gco:CharacterString>Arctic Sea Ice</gco:CharacterString>
	            </gmd:keyword>
	            <gmd:keyword>
	               <gco:CharacterString>IceBridge</gco:CharacterString>
	            </gmd:keyword>
	            <gmd:keyword>
	               <gco:CharacterString>Image</gco:CharacterString>
	            </gmd:keyword>
	            <gmd:keyword>
	               <gco:CharacterString>Imagery</gco:CharacterString>
	            </gmd:keyword>
	            <gmd:keyword>
	               <gco:CharacterString>NASA</gco:CharacterString>
	            </gmd:keyword>
	            <gmd:keyword>
	               <gco:CharacterString>NSIDC DAAC</gco:CharacterString>
	            </gmd:keyword>
	            <gmd:keyword>
	               <gco:CharacterString>Polar Sea Ice</gco:CharacterString>
	            </gmd:keyword>
	            <gmd:keyword>
	               <gco:CharacterString>Polar Topography</gco:CharacterString>
	            </gmd:keyword>
	            <gmd:keyword>
	               <gco:CharacterString>Radar</gco:CharacterString>
	            </gmd:keyword>
	            <gmd:keyword>
	               <gco:CharacterString>Sea Ice</gco:CharacterString>
	            </gmd:keyword>
	            <gmd:keyword>
	               <gco:CharacterString>Snow Cover</gco:CharacterString>
	            </gmd:keyword>
	            <gmd:keyword>
	               <gco:CharacterString>Snow Cover On Sea Ice</gco:CharacterString>
	            </gmd:keyword>
	            <gmd:keyword>
	               <gco:CharacterString>Topography</gco:CharacterString>
	            </gmd:keyword>
	            <gmd:type>
	               <gmd:MD_KeywordTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="theme">theme</gmd:MD_KeywordTypeCode>
	            </gmd:type>
	               <gmd:thesaurusName>
	               </gmd:thesaurusName>
	         </gmd:MD_Keywords>
	      </gmd:descriptiveKeywords>
	         <gmd:resourceConstraints>
	            <gmd:MD_LegalConstraints>
	               <gmd:accessConstraints>
	                  <gmd:MD_RestrictionCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_RestrictionCode" codeListValue="otherRestrictions">otherRestrictions</gmd:MD_RestrictionCode>
	               </gmd:accessConstraints>
	               <gmd:useConstraints>
	                  <gmd:MD_RestrictionCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_RestrictionCode" codeListValue="otherRestrictions">otherRestrictions</gmd:MD_RestrictionCode>
	               </gmd:useConstraints>
	               <gmd:otherConstraints>
	                  <gco:CharacterString>Access Constraints : none</gco:CharacterString>
	               </gmd:otherConstraints>
	               <gmd:otherConstraints>
	                  <gco:CharacterString>Use Constraints : none</gco:CharacterString>
	               </gmd:otherConstraints>
	   </gmd:MD_LegalConstraints>
	         </gmd:resourceConstraints>
	   <gmd:language>
	      <gco:CharacterString>eng; usa</gco:CharacterString>
	</gmd:language>
	   <gmd:characterSet>
	      <gmd:MD_CharacterSetCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_CharacterSetCode" codeListValue="UTF8">UTF8</gmd:MD_CharacterSetCode>
	   </gmd:characterSet>
	         <gmd:topicCategory>
	            <gmd:MD_TopicCategoryCode>climatologyMeteorologyAtmosphere</gmd:MD_TopicCategoryCode>
	         </gmd:topicCategory>
	         <gmd:extent>
	            <gmd:EX_Extent id="boundingExtent">
	               <gmd:geographicElement>
	                  <gmd:EX_GeographicBoundingBox id="boundingGeographicBoundingBox">
	                     <gmd:westBoundLongitude>
	                        <gco:Decimal>-180</gco:Decimal>
	</gmd:westBoundLongitude>
	                     <gmd:eastBoundLongitude>
	                        <gco:Decimal>180</gco:Decimal>
	</gmd:eastBoundLongitude>
	                     <gmd:southBoundLatitude>
	                        <gco:Decimal>-90</gco:Decimal>
	</gmd:southBoundLatitude>
	                     <gmd:northBoundLatitude>
	                        <gco:Decimal>90</gco:Decimal>
	</gmd:northBoundLatitude>
	                  </gmd:EX_GeographicBoundingBox>
	               </gmd:geographicElement>
	               <gmd:temporalElement>
	                  <gmd:EX_TemporalExtent id="boundingTemporalExtent">
	                     <gmd:extent>
	                        <gmd:TimePeriod>
	                           <gmd:beginPosition>20090101</gmd:beginPosition>
	                           <gmd:endPosition>Unknown</gmd:endPosition>
	                        </gmd:TimePeriod>
	                     </gmd:extent>
	                  </gmd:EX_TemporalExtent>
	               </gmd:temporalElement>
	            </gmd:EX_Extent>
	         </gmd:extent>
	      </gmd:MD_DataIdentification>
	   </gmd:identificationInfo>
	   <gmd:distributionInfo>
	      <gmd:MD_Distribution>
	         <gmd:distributionFormat>
	            <gmd:MD_Format>
	               <gmd:name>
	                  <gco:CharacterString>JPEG</gco:CharacterString>
	               </gmd:name>
	               <gmd:version>
	                  <gco:CharacterString/>
	               </gmd:version>
	               <gmd:specification>
	                  <gco:CharacterString> FTP 13 GB</gco:CharacterString>
	               </gmd:specification>
	            </gmd:MD_Format>
	         </gmd:distributionFormat>
	         <gmd:distributionFormat>
	            <gmd:MD_Format>
	               <gmd:name>
	                  <gco:CharacterString>KML</gco:CharacterString>
	               </gmd:name>
	               <gmd:version>
	                  <gco:CharacterString/>
	               </gmd:version>
	               <gmd:specification>
	                  <gco:CharacterString> FTP 13 MB</gco:CharacterString>
	               </gmd:specification>
	            </gmd:MD_Format>
	         </gmd:distributionFormat>
	         <gmd:distributionFormat>
	            <gmd:MD_Format>
	               <gmd:name>
	                  <gco:CharacterString>MATLAB</gco:CharacterString>
	               </gmd:name>
	               <gmd:version>
	                  <gco:CharacterString/>
	               </gmd:version>
	               <gmd:specification>
	                  <gco:CharacterString> FTP 278 GB</gco:CharacterString>
	               </gmd:specification>
	            </gmd:MD_Format>
	         </gmd:distributionFormat>
	         <gmd:distributionFormat>
	            <gmd:MD_Format>
	               <gmd:name>
	                  <gco:CharacterString>Binary</gco:CharacterString>
	               </gmd:name>
	               <gmd:version>
	                  <gco:CharacterString/>
	               </gmd:version>
	               <gmd:specification>
	                  <gco:CharacterString> FTP 6.6 TB</gco:CharacterString>
	               </gmd:specification>
	            </gmd:MD_Format>
	         </gmd:distributionFormat>
	            <gmd:distributor>
	            <gmd:MD_Distributor>
	               <gmd:distributorContact>
	                  <gmd:CI_ResponsibleParty>
	                     <gmd:individualName>
	                        <gco:CharacterString>NSIDC DAAC User Services</gco:CharacterString>
	</gmd:individualName>
	                     <gmd:organisationName>
	                        <gco:CharacterString>NASA DAAC at the National Snow and Ice Data Center</gco:CharacterString>
	</gmd:organisationName>
	   <gmd:contactInfo>
	      <gmd:CI_Contact>
	   <gmd:phone>
	      <gmd:CI_Telephone>
	      <gmd:voice>
	         <gco:CharacterString>1 303 492-6199 </gco:CharacterString>
	</gmd:voice>
	      </gmd:CI_Telephone>
	   </gmd:phone>
	   <gmd:address>
	      <gmd:CI_Address>
	      <gmd:deliveryPoint>
	         <gco:CharacterString>National Snow and Ice Data Center</gco:CharacterString>
	</gmd:deliveryPoint>
	      <gmd:city>
	         <gco:CharacterString>Boulder</gco:CharacterString>
	</gmd:city>
	      <gmd:administrativeArea>
	         <gco:CharacterString>CO</gco:CharacterString>
	</gmd:administrativeArea>
	      <gmd:postalCode>
	         <gco:CharacterString>80309-0449</gco:CharacterString>
	</gmd:postalCode>
	      <gmd:country>
	         <gco:CharacterString>USA</gco:CharacterString>
	</gmd:country>
	      <gmd:electronicMailAddress>
	         <gco:CharacterString>nsidc@nsidc.org</gco:CharacterString>
	</gmd:electronicMailAddress>
	      </gmd:CI_Address>
	   </gmd:address>
	   <gmd:onlineResource>
	      <gmd:CI_OnlineResource>
	         <gmd:linkage>
	            <gmd:URL>http://nsidc.org/daac/index.html</gmd:URL>
	         </gmd:linkage>
	      </gmd:CI_OnlineResource>
	   </gmd:onlineResource>
	      </gmd:CI_Contact>
	   </gmd:contactInfo>
	   <gmd:role>
	      <gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="custodian">custodian</gmd:CI_RoleCode>
	   </gmd:role>
	                  </gmd:CI_ResponsibleParty>
	               </gmd:distributorContact>
	            </gmd:MD_Distributor>
	            </gmd:distributor>
	            <gmd:distributor>
	            <gmd:MD_Distributor>
	               <gmd:distributorContact>
	                  <gmd:CI_ResponsibleParty>
	                     <gmd:individualName>
	                        <gco:CharacterString>NSIDC User Services</gco:CharacterString>
	</gmd:individualName>
	                     <gmd:organisationName>
	                        <gco:CharacterString>National Snow and Ice Data Center</gco:CharacterString>
	</gmd:organisationName>
	   <gmd:contactInfo>
	      <gmd:CI_Contact>
	   <gmd:phone>
	      <gmd:CI_Telephone>
	      <gmd:voice>
	         <gco:CharacterString>1 303 492-6199 </gco:CharacterString>
	</gmd:voice>
	      </gmd:CI_Telephone>
	   </gmd:phone>
	   <gmd:address>
	      <gmd:CI_Address>
	      <gmd:deliveryPoint>
	         <gco:CharacterString>National Snow and Ice Data Center</gco:CharacterString>
	</gmd:deliveryPoint>
	      <gmd:city>
	         <gco:CharacterString>Boulder</gco:CharacterString>
	</gmd:city>
	      <gmd:administrativeArea>
	         <gco:CharacterString>CO</gco:CharacterString>
	</gmd:administrativeArea>
	      <gmd:postalCode>
	         <gco:CharacterString>80309-0449</gco:CharacterString>
	</gmd:postalCode>
	      <gmd:country>
	         <gco:CharacterString>USA</gco:CharacterString>
	</gmd:country>
	      <gmd:electronicMailAddress>
	         <gco:CharacterString>nsidc@nsidc.org</gco:CharacterString>
	</gmd:electronicMailAddress>
	      </gmd:CI_Address>
	   </gmd:address>
	   <gmd:onlineResource>
	      <gmd:CI_OnlineResource>
	         <gmd:linkage>
	            <gmd:URL>http://nsidc.org</gmd:URL>
	         </gmd:linkage>
	      </gmd:CI_OnlineResource>
	   </gmd:onlineResource>
	      </gmd:CI_Contact>
	   </gmd:contactInfo>
	   <gmd:role>
	      <gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="custodian">custodian</gmd:CI_RoleCode>
	   </gmd:role>
	                  </gmd:CI_ResponsibleParty>
	               </gmd:distributorContact>
	            </gmd:MD_Distributor>
	            </gmd:distributor>
	            <gmd:distributor>
	            <gmd:MD_Distributor>
	               <gmd:distributorContact>
	                  <gmd:CI_ResponsibleParty>
	                     <gmd:individualName>
	                        <gco:CharacterString>NSIDC User Services</gco:CharacterString>
	</gmd:individualName>
	                     <gmd:organisationName>
	                        <gco:CharacterString>Operation IceBridge</gco:CharacterString>
	</gmd:organisationName>
	   <gmd:contactInfo>
	      <gmd:CI_Contact>
	   <gmd:address>
	      <gmd:CI_Address>
	      <gmd:electronicMailAddress>
	         <gco:CharacterString>nsidc@nsidc.org</gco:CharacterString>
	</gmd:electronicMailAddress>
	      </gmd:CI_Address>
	   </gmd:address>
	   <gmd:onlineResource>
	      <gmd:CI_OnlineResource>
	         <gmd:linkage>
	            <gmd:URL>Unknown</gmd:URL>
	         </gmd:linkage>
	      </gmd:CI_OnlineResource>
	   </gmd:onlineResource>
	      </gmd:CI_Contact>
	   </gmd:contactInfo>
	   <gmd:role>
	      <gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="custodian">custodian</gmd:CI_RoleCode>
	   </gmd:role>
	                  </gmd:CI_ResponsibleParty>
	               </gmd:distributorContact>
	            </gmd:MD_Distributor>
	            </gmd:distributor>
	         <gmd:transferOptions>
	            <gmd:MD_DigitalTransferOptions>
	               <gmd:onLine>
	                  <gmd:CI_OnlineResource>
	                     <gmd:linkage>
	                        <gmd:URL>ftp://n4ftl01u.ecs.nasa.gov/SAN2/ICEBRIDGE_FTP/IRSNO1B_SnowRadarXyEcho_v01/</gmd:URL>
	                     </gmd:linkage>
	                     <gmd:description><gco:CharacterString>Data Access URL</gco:CharacterString></gmd:description>
	                     <gmd:function>
	                        <gmd:CI_OnLineFunctionCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="function">download</gmd:CI_OnLineFunctionCode>
	                     </gmd:function>
	                  </gmd:CI_OnlineResource>
	               </gmd:onLine>
	               <gmd:onLine>
	                  <gmd:CI_OnlineResource>
	                     <gmd:linkage>
	                        <gmd:URL>http://nsidc.org/data/docs/daac/icebridge/irsno1b/index.html</gmd:URL>
	                     </gmd:linkage>
	                     <gmd:description><gco:CharacterString>Documentation URL</gco:CharacterString></gmd:description>
	                     <gmd:function>
	                        <gmd:CI_OnLineFunctionCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="function">information</gmd:CI_OnLineFunctionCode>
	                     </gmd:function>
	                  </gmd:CI_OnlineResource>
	               </gmd:onLine>
	               <gmd:offLine>
	                  <gmd:MD_Medium>
	                     <gmd:name>
	                        <gmd:MD_MediumNameCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_MediumNameCode" codeListValue="onLine">onLine</gmd:MD_MediumNameCode>
	                     </gmd:name>
	                     <gmd:density>
	                        <gco:Real>13 </gco:Real>
	</gmd:density>
	                     <gmd:densityUnits>
	                        <gco:CharacterString>B</gco:CharacterString>
	</gmd:densityUnits>
	                     <gmd:mediumNote>
	                        <gco:CharacterString>FTP</gco:CharacterString>
	</gmd:mediumNote>
	                  </gmd:MD_Medium>
	               </gmd:offLine>
	            </gmd:MD_DigitalTransferOptions>
	         </gmd:transferOptions>
	      </gmd:MD_Distribution>
	   </gmd:distributionInfo>
	   <gmi:acquisitionInformation>
	      <gmi:MI_AcquisitionInformation>
	         <gmi:instrument>
	            <gmi:MI_Instrument>
	               <gmi:identifier>                  <gmd:MD_Identifier>                     <gmd:code>
	                        <gco:CharacterString>RADAR ECHO SOUNDERS</gco:CharacterString>
	                     </gmd:code>                  </gmd:MD_Identifier></gmi:identifier>
	               <gmi:type>
	                  <gco:CharacterString>sensor</gco:CharacterString>
	</gmi:type>
	            </gmi:MI_Instrument>
	         </gmi:instrument>
	         <gmi:instrument>
	            <gmi:MI_Instrument>
	               <gmi:identifier>                  <gmd:MD_Identifier>                     <gmd:code>
	                        <gco:CharacterString>Snow Radar &gt; Wide-band Snow Depth Radar</gco:CharacterString>
	                     </gmd:code>                  </gmd:MD_Identifier></gmi:identifier>
	               <gmi:type>
	                  <gco:CharacterString>sensor</gco:CharacterString>
	</gmi:type>
	            </gmi:MI_Instrument>
	         </gmi:instrument>
	         <gmi:platform>
	            <gmi:MI_Platform>
	               <gmi:identifier>                  <gmd:MD_Identifier>                     <gmd:code>
	                        <gco:CharacterString>AIRCRAFT</gco:CharacterString>
	                     </gmd:code>                  </gmd:MD_Identifier></gmi:identifier>
	               <gmi:description>
	                  <gco:CharacterString>satellite                  </gco:CharacterString>
	</gmi:description>
	               <gmi:instrument>
	                  <gco:CharacterString>N/A                  </gco:CharacterString>
	</gmi:instrument>
	            </gmi:MI_Platform>
	         </gmi:platform>
	         <gmi:platform>
	            <gmi:MI_Platform>
	               <gmi:identifier>                  <gmd:MD_Identifier>                     <gmd:code>
	                        <gco:CharacterString>DC-8 &gt; Douglas DC-8</gco:CharacterString>
	                     </gmd:code>                  </gmd:MD_Identifier></gmi:identifier>
	               <gmi:description>
	                  <gco:CharacterString>satellite                  </gco:CharacterString>
	</gmi:description>
	               <gmi:instrument>
	                  <gco:CharacterString>N/A                  </gco:CharacterString>
	</gmi:instrument>
	            </gmi:MI_Platform>
	         </gmi:platform>
	         <gmi:platform>
	            <gmi:MI_Platform>
	               <gmi:identifier>                  <gmd:MD_Identifier>                     <gmd:code>
	                        <gco:CharacterString>P-3B &gt; Lockheed P-3B Orion</gco:CharacterString>
	                     </gmd:code>                  </gmd:MD_Identifier></gmi:identifier>
	               <gmi:description>
	                  <gco:CharacterString>satellite                  </gco:CharacterString>
	</gmi:description>
	               <gmi:instrument>
	                  <gco:CharacterString>N/A                  </gco:CharacterString>
	</gmi:instrument>
	            </gmi:MI_Platform>
	         </gmi:platform>
	      </gmi:MI_AcquisitionInformation>
	   </gmi:acquisitionInformation>
	</gmi:MI_Metadata>
