<?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>2026-11-15T13:19:06Z</responseDate><request identifier="ATL13.005" metadataPrefix="dif" verb="GetRecord">http://nsidc.org/api/dataset/metadata/oai</request><GetRecord><record><header><identifier>oai:nsidc.org/ATL13.005</identifier><datestamp>2026-03-03T04:17:04Z</datestamp><setSpec>cumulus</setSpec><setSpec>ecs</setSpec><setSpec>retired</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>ATL13.005</Entry_ID><Entry_Title>ATLAS/ICESat-2 L3A Along Track Inland Surface Water Data</Entry_Title><Data_Set_Citation><Dataset_Creator>Jasinski, M. F., Stoll, J. D., Hancock, D., Robbins, J., Nattala, J., Morison, J., Jones, B. M., Ondrusek, M. E., Pavelsky, T. M., Parrish, C. &amp; the ICESat-2 Science Team</Dataset_Creator><Dataset_Title>ATLAS/ICESat-2 L3A Along Track Inland Surface Water Data</Dataset_Title><Dataset_Release_Date>2021-12-14</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>5</Version><Other_Citation_Details><Invert_Citation_Order>false</Invert_Citation_Order></Other_Citation_Details><Dataset_DOI>10.5067/ATLAS/ATL13.005</Dataset_DOI><Online_Resource>https://nsidc.org/sites/default/files/atl13-v005-userguide_1.pdf</Online_Resource><Dataset_Series_Name>ATL13</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>TERRESTRIAL HYDROSPHERE</Topic><Term>SURFACE WATER</Term><Variable_Level_1>SURFACE WATER PROCESSES/MEASUREMENTS</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><ISO_Topic_Category>Climatology/Meteorology/Atmosphere</ISO_Topic_Category><Keyword>icesat2-project</Keyword><Sensor_Name><Short_Name>ATLAS</Short_Name><Long_Name>Advanced Topographic Laser Altimeter System</Long_Name></Sensor_Name><Source_Name><Short_Name>ICESat-2</Short_Name><Long_Name>Ice, Cloud, and land Elevation Satellite-2</Long_Name></Source_Name><Temporal_Coverage><Start_Date>2018-10-13</Start_Date><Stop_Date>2022-10-13</Stop_Date></Temporal_Coverage><Data_Set_Progress>deprecated</Data_Set_Progress><Spatial_Coverage><Southernmost_Latitude>-90</Southernmost_Latitude><Northernmost_Latitude>90</Northernmost_Latitude><Westernmost_Longitude>-180</Westernmost_Longitude><Easternmost_Longitude>180</Easternmost_Longitude></Spatial_Coverage><Location><Location_Category>GEOGRAPHIC REGION</Location_Category><Location_Type>GLOBAL LAND</Location_Type></Location><Data_Resolution><Longitude_Resolution>Varies</Longitude_Resolution><Temporal_Resolution>91 day</Temporal_Resolution></Data_Resolution><Access_Constraints>These data have been retired and are no longer accessible, though a more recent version of these data may be available.</Access_Constraints><Use_Constraints>These data have been retired and are no longer available for use, though a more recent version of these data may be available. Cite any prior or planned use of these data according to the recommended citation at https://nsidc.org/about/data-use-and-copyright. For more information on the NASA EOSDIS Data Use Policy, see [https://earthdata.nasa.gov/earth-observation-data/data-use-policy](https://earthdata.nasa.gov/earth-observation-data/data-use-policy).</Use_Constraints><Data_Set_Language>English</Data_Set_Language><Originating_Center>NASA/GSFC/SED/ESD/I2-SIPS</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>This data set (ATL13) contains along-track surface water products for inland water bodies.  Inland water bodies include lakes, reservoirs, rivers, bays, estuaries and a 7km near-shore buffer. Principal data products include the along-track water surface height and standard deviation, subsurface signal (532 nm) attenuation, significant wave height, wind speed, and coarse depth to bottom topography (where data permit).</Abstract></Summary><Related_URL><URL_Content_Type><Type>VIEW RELATED INFORMATION</Type></URL_Content_Type><URL>https://nsidc.org/sites/default/files/atl13-v005-userguide_1.pdf</URL><Description>ATLAS/ICESat-2 L3A Along Track Inland Surface Water Data, Version 5 User Guide</Description></Related_URL><Metadata_Name>CEOS IDN DIF</Metadata_Name><Metadata_Version>VERSION 9.9</Metadata_Version><DIF_Creation_Date>2021-12-14</DIF_Creation_Date><Last_DIF_Revision_Date>2026-03-03</Last_DIF_Revision_Date><Extended_Metadata><Metadata><Group>NSIDC</Group><Name>Version Summary</Name><Value>Changes for this version include:
&lt;ul&gt;
&lt;li&gt;Modified the creation of short segment length to provide additional accuracy for smaller water bodies.&lt;/li&gt;
&lt;li&gt;Included the analysis of the partial short segments at the very end of a transect to provide a more accurate river edge detection.&lt;/li&gt;
&lt;li&gt;Updated subsurface refraction correction to also include lat/lon position of bottom location.&lt;/li&gt;
&lt;li&gt;Updated the surface analysis to include assumed fresh and salt water indices based on water body type to provide a more accurate estimation of the attenuation coefficient.&lt;/li&gt;
&lt;li&gt;Added POD/PPD flags that indicate quality of input geolocation to improve the understanding of product quality.&lt;/li&gt;
&lt;li&gt;Replaced the Crossing Number (CN) algorithm with the Winding Number (WN) algorithm to allow the analysis over lakes previously skipped. This improved the capture of ICESat-2 observations over small and large water bodies.&lt;/li&gt;
&lt;li&gt;Updated the external links for the ATL13 height product validation.&lt;/li&gt;
&lt;li&gt;Added the count of output signal photons in full and partial non-anomalous and anomalous short segments to improve the understanding of product accuracy.&lt;/li&gt;
&lt;li&gt;Fixed a couple of bugs, see the user guide for more details.&lt;/li&gt;
&lt;/ul&gt;</Value></Metadata><Metadata><Group>NSIDC</Group><Name>Minor Version</Name><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>No Data Access</Level></Value></Metadata><Metadata><Group>NSIDC</Group><Name>Full Dataset Citation</Name><Value>Jasinski, M. F., Stoll, J. D., Hancock, D., Robbins, J., Nattala, J., Morison, J., Jones, B. M., Ondrusek, M. E., Pavelsky, T. M., Parrish, C. &amp; the ICESat-2 Science Team. (2021). &lt;i&gt;ATLAS/ICESat-2 L3A Along Track Inland Surface Water Data&lt;/i&gt;. (ATL13, Version 5). [Data Set]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. &lt;a href="https://doi.org/10.5067/ATLAS/ATL13.005"&gt;https://doi.org/10.5067/ATLAS/ATL13.005&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>true</Value></Metadata></Extended_Metadata></DIF>
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