<?xml version="1.0" encoding="UTF-8"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-04-11T17:33:11Z</responseDate><request metadataPrefix="dif" identifier="IS2PLMATLAS.002" verb="GetRecord">http://nsidc.org/api/dataset/metadata/oai</request><GetRecord><record><header><identifier>oai:nsidc.org/IS2PLMATLAS.002</identifier><datestamp>2026-01-26T20:16:47Z</datestamp><setSpec>v0_daac</setSpec><setSpec>v0_all</setSpec><setSpec>nasa_nsidc_daac</setSpec></header><metadata>
<DIF xmlns="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/ http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/dif_v9.7.1.xsd"><Entry_ID>IS2PLMATLAS.002</Entry_ID><Entry_Title>ICESat-2 Pre-Launch Simulated Multiple Altimeter Beam Experimental Lidar Advanced Topographic Laser Altimeter System (MATLAS) Data</Entry_Title><Data_Set_Citation><Dataset_Creator>Hancock, D., Neumann, T. A., Markus, T. &amp; Lee, J.</Dataset_Creator><Dataset_Title>ICESat-2 Pre-Launch Simulated Multiple Altimeter Beam Experimental Lidar Advanced Topographic Laser Altimeter System (MATLAS) Data</Dataset_Title><Dataset_Release_Date>2024-07-31</Dataset_Release_Date><Dataset_Release_Place>Boulder, Colorado USA</Dataset_Release_Place><Dataset_Publisher>NASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center</Dataset_Publisher><Version>2</Version><Other_Citation_Details><Invert_Citation_Order>false</Invert_Citation_Order></Other_Citation_Details><Dataset_DOI>10.5067/FNGNX6AQJT3W</Dataset_DOI><Online_Resource>https://doi.org/10.5067/FNGNX6AQJT3W</Online_Resource><Dataset_Series_Name>IS2PLMATLAS</Dataset_Series_Name></Data_Set_Citation><Personnel><Role>Technical Contact</Role><First_Name>NSIDC</First_Name><Last_Name>User Services</Last_Name><Email>nsidc@nsidc.org</Email><Phone>1-303-492-6199</Phone><Fax>1-303-492-2468</Fax><Contact_Address><Address>CIRES, 449 UCB</Address><Address>University of Colorado</Address><City>Boulder</City><Province_or_State>CO</Province_or_State><Postal_Code>80309-0449</Postal_Code><Country>USA</Country></Contact_Address></Personnel><Parameters><Category>EARTH SCIENCE</Category><Topic>SPECTRAL/ENGINEERING</Topic><Term>INFRARED WAVELENGTHS</Term><Variable_Level_1>SENSOR COUNTS</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><Keyword>icesat2-related project</Keyword><Sensor_Name><Short_Name>MABEL</Short_Name><Long_Name>Multiple Altimeter Beam Experimental Lidar</Long_Name></Sensor_Name><Source_Name><Short_Name>NASA ER-2</Short_Name><Long_Name>NASA Earth Resources-2</Long_Name></Source_Name><Temporal_Coverage><Start_Date>2012-02-24</Start_Date><Stop_Date>2012-09-27</Stop_Date></Temporal_Coverage><Data_Set_Progress>complete</Data_Set_Progress><Spatial_Coverage><Southernmost_Latitude>35.9876</Southernmost_Latitude><Northernmost_Latitude>74.3744</Northernmost_Latitude><Westernmost_Longitude>-123.725</Westernmost_Longitude><Easternmost_Longitude>-17.7799</Easternmost_Longitude></Spatial_Coverage><Data_Resolution><Longitude_Resolution>Not applicable</Longitude_Resolution><Temporal_Resolution>Not applicable</Temporal_Resolution></Data_Resolution><Access_Constraints>These data are freely, openly, and fully accessible, provided that you are logged into your NASA Earthdata profile (https://urs.earthdata.nasa.gov/).</Access_Constraints><Use_Constraints>These data are freely, openly, and fully available to use without restrictions, provided that you cite the data according to the recommended citation at https://nsidc.org/about/use_copyright.html. For more information on the NASA EOSDIS Data Use Policy, see https://earthdata.nasa.gov/earth-observation-data/data-use-policy.</Use_Constraints><Data_Set_Language>English</Data_Set_Language><Originating_Center>NASA/GSFC/EOS/ESDIS</Originating_Center><Data_Center><Data_Center_Name><Short_Name>NASA NSIDC DAAC</Short_Name><Long_Name>NASA National Snow and Ice Data Center Distributed Active Archive Center</Long_Name></Data_Center_Name><Data_Center_URL>https://nsidc.org/daac</Data_Center_URL><Personnel><Role>Data Center Contact</Role><First_Name>NSIDC</First_Name><Last_Name>User Services</Last_Name><Email>nsidc@nsidc.org</Email><Phone>1-303-492-6199</Phone><Contact_Address><Address>National Snow and Ice Data Center</Address><Address>CIRES, 449 UCB</Address><Address>University of Colorado</Address><City>Boulder</City><Province_or_State>CO</Province_or_State><Postal_Code>80309-0449</Postal_Code><Country>USA</Country></Contact_Address></Personnel></Data_Center><Distribution><Distribution_Media>HTTPS</Distribution_Media><Distribution_Format>HDF5</Distribution_Format></Distribution><Reference/><Summary><Abstract>Multiple Altimeter Beam Experimental Lidar (MABEL) Advanced Topographic Laser Altimeter System (MATLAS) simulates the expected performance of the ICESat-2 ATLAS instrument. The data are produced from MABEL data by adjusting the detected number of signal and noise photons to that predicted using ATLAS instrument model design cases. Each data file consists of approximately 1 minute of HDF5-derived MABEL data.</Abstract></Summary><Related_URL><URL_Content_Type><Type>VIEW RELATED INFORMATION</Type></URL_Content_Type><URL>https://doi.org/10.5067/FNGNX6AQJT3W</URL><Description>User's Guide</Description></Related_URL><Related_URL><URL_Content_Type><Type>GET DATA</Type></URL_Content_Type><URL>https://daacdata.apps.nsidc.org/pub/DATASETS/IS2PLMATLAS_v2/</URL><Description>HTTPS</Description></Related_URL><Metadata_Name>CEOS IDN DIF</Metadata_Name><Metadata_Version>VERSION 9.9</Metadata_Version><DIF_Creation_Date>2024-07-31</DIF_Creation_Date><Last_DIF_Revision_Date>2026-01-26</Last_DIF_Revision_Date><Extended_Metadata><Metadata><Group>NSIDC</Group><Name>Version Summary</Name><Value>Initial release</Value></Metadata><Metadata><Group>NSIDC</Group><Name>Minor Version</Name><Value/></Metadata><Metadata><Group>NSIDC</Group><Name>Current Version</Name><Value>1</Value></Metadata><Metadata><Group>NSIDC</Group><Name>Spatial Reference Systems</Name><Value><Spatial_Reference_System><SRID>EPSG:4326</SRID><Description>WGS 84</Description></Spatial_Reference_System></Value></Metadata><Metadata><Group>NSIDC</Group><Name>Level of Service</Name><Value><Level>Basic</Level></Value></Metadata><Metadata><Group>NSIDC</Group><Name>Full Dataset Citation</Name><Value>Hancock, D., Neumann, T. A., Markus, T. &amp; Lee, J. (2024). &lt;i&gt;ICESat-2 Pre-Launch Simulated Multiple Altimeter Beam Experimental Lidar Advanced Topographic Laser Altimeter System (MATLAS) Data&lt;/i&gt;. (IS2PLMATLAS, Version 2). [Data Set]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. &lt;a href="https://doi.org/10.5067/FNGNX6AQJT3W"&gt;https://doi.org/10.5067/FNGNX6AQJT3W&lt;/a&gt;. [&lt;i&gt;&lt;describe subset used if applicable&gt;&lt;/i&gt;].</Value></Metadata><Metadata><Group>NSIDC</Group><Name>Retired</Name><Value>false</Value></Metadata><Metadata><Group>NSIDC</Group><Name>Related Services</Name><Value><umm-s><meta><format>application/vnd.nasa.cmr.umm+json</format><deleted>false</deleted><user-id>amyygilliland</user-id><native-id>mmt_service_12717</native-id><concept-id>S1977897447-NSIDCV0</concept-id><provider-id>NSIDCV0</provider-id><revision-id>6</revision-id><concept-type>service</concept-type><revision-date>2025-04-01T22:12:52.112Z</revision-date></meta><umm><URL><URLValue>https://daacdata.apps.nsidc.org/</URLValue></URL><Name>NSIDCV0_DAAC_Data_HTTPS_File_System</Name><Type>NOT PROVIDED</Type><Version>1</Version><LongName>HTTPS File System</LongName><Description>Quickly download a few files using a web browser, or access the data through a command-line utility such as WGET.</Description><RelatedURLs><RelatedURL><URL>https://nsidc.org/data/user-resources/help-center/programmatic-access-guide-data-daacdataapps</URL><Type>VIEW RELATED INFORMATION</Type><Description>Programmatic Data Access Guide</Description><URLContentType>PublicationURL</URLContentType></RelatedURL></RelatedURLs><ContactGroups><ContactGroup><Roles><Role>USER SERVICES</Role></Roles><GroupName>NSIDC DAAC User Services</GroupName><ContactInformation><ContactMechanisms><ContactMechanism><Type>Email</Type><Value>nsidc@nsidc.org</Value></ContactMechanism></ContactMechanisms></ContactInformation></ContactGroup></ContactGroups><ServiceKeywords><ServiceKeyword><ServiceTerm>DATA ACCESS/RETRIEVAL</ServiceTerm><ServiceTopic>DATA MANAGEMENT/DATA HANDLING</ServiceTopic><ServiceCategory>EARTH SCIENCE SERVICES</ServiceCategory></ServiceKeyword></ServiceKeywords><VersionDescription>This is the most current release of this service.</VersionDescription><ServiceOrganizations><ServiceOrganization><Roles><Role>DEVELOPER</Role><Role>ORIGINATOR</Role><Role>PUBLISHER</Role><Role>SERVICE PROVIDER</Role></Roles><LongName>NASA National Snow and Ice Data Center Distributed Active Archive Center</LongName><ShortName>NASA NSIDC DAAC</ShortName><OnlineResource><Name>NASA Distributed Active Archive Center (DAAC) at NSIDC</Name><Linkage>https://nsidc.org/daac</Linkage><Description>NSIDC DAAC Home Page</Description></OnlineResource></ServiceOrganization></ServiceOrganizations><MetadataSpecification><URL>https://cdn.earthdata.nasa.gov/umm/service/v1.4</URL><Name>UMM-S</Name><Version>1.4</Version></MetadataSpecification></umm></umm-s><nsidc><URLValue>https://daacdata.apps.nsidc.org/pub/DATASETS/IS2PLMATLAS_v2/</URLValue></nsidc></Value></Metadata></Extended_Metadata></DIF>
</metadata></record></GetRecord></OAI-PMH>