<?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>2026-08-17T17:41:54Z</responseDate><request identifier="G10014.001" metadataPrefix="dif" verb="GetRecord">http://nsidc.org/api/dataset/metadata/oai</request><GetRecord><record><header><identifier>oai:nsidc.org/G10014.001</identifier><datestamp>2025-12-03T15:17:20Z</datestamp><setSpec>v0_other</setSpec><setSpec>v0_all</setSpec><setSpec>noaa</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>G10014.001</Entry_ID><Entry_Title>Sea Ice Mass Balance in the Antarctic (SIMBA)</Entry_Title><Data_Set_Citation><Dataset_Creator>Ackley, S. F., Delille, B., Tison, J. L., Carnat, G., Weissling, B., Lewis, M. J., Fritsen, C. H. &amp; Stammerjohn, S.</Dataset_Creator><Dataset_Title>Sea Ice Mass Balance in the Antarctic (SIMBA)</Dataset_Title><Dataset_Release_Date>2016-12-09</Dataset_Release_Date><Dataset_Release_Place>Boulder, Colorado USA</Dataset_Release_Place><Dataset_Publisher>NSIDC: National Snow and Ice Data Center</Dataset_Publisher><Version>1</Version><Other_Citation_Details><Invert_Citation_Order>false</Invert_Citation_Order></Other_Citation_Details><Dataset_DOI>10.7265/N53F4MJ7</Dataset_DOI><Online_Resource>http://doi.org/10.7265/N53F4MJ7</Online_Resource><Dataset_Series_Name>G10014</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><Personnel><Role>Investigator</Role><First_Name>S.</First_Name><Middle_Name>F.</Middle_Name><Last_Name>Ackley</Last_Name><Email>Stephen.Ackley@utsa.edu</Email><Contact_Address><Country/></Contact_Address></Personnel><Personnel><Role>Investigator</Role><First_Name>Bruno</First_Name><Last_Name>Delille</Last_Name><Email>Bruno.Delille@ulg.ac.be</Email><Contact_Address><Country/></Contact_Address></Personnel><Personnel><Role>Investigator</Role><First_Name>J.</First_Name><Middle_Name>L.</Middle_Name><Last_Name>Tison</Last_Name><Contact_Address><Country/></Contact_Address></Personnel><Personnel><Role>Investigator</Role><First_Name>Gauthier</First_Name><Last_Name>Carnat</Last_Name><Contact_Address><Country/></Contact_Address></Personnel><Personnel><Role>Investigator</Role><First_Name>Blake</First_Name><Last_Name>Weissling</Last_Name><Contact_Address><Country/></Contact_Address></Personnel><Personnel><Role>Investigator</Role><First_Name>M.</First_Name><Middle_Name>J.</Middle_Name><Last_Name>Lewis</Last_Name><Contact_Address><Country/></Contact_Address></Personnel><Personnel><Role>Investigator</Role><First_Name>Christian</First_Name><Middle_Name>H.</Middle_Name><Last_Name>Fritsen</Last_Name><Contact_Address><Country/></Contact_Address></Personnel><Personnel><Role>Investigator</Role><First_Name>Sharon</First_Name><Last_Name>Stammerjohn</Last_Name><Contact_Address><Country/></Contact_Address></Personnel><Parameters><Category>EARTH 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</Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><Parameters><Category>EARTH SCIENCE</Category><Topic>OCEANS</Topic><Term>OCEAN OPTICS</Term><Variable_Level_1>IRRADIANCE</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><Parameters><Category>EARTH SCIENCE</Category><Topic>TERRESTRIAL HYDROSPHERE</Topic><Term>SNOW/ICE</Term><Variable_Level_1>LIQUID WATER CONTENT</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><Parameters><Category>EARTH SCIENCE</Category><Topic>OCEANS</Topic><Term>SALINITY/DENSITY</Term><Variable_Level_1>OCEAN SALINITY</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><Parameters><Category>EARTH 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</Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><Parameters><Category>EARTH SCIENCE</Category><Topic>CRYOSPHERE</Topic><Term>SEA ICE</Term><Variable_Level_1>SNOW DEPTH</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><Parameters><Category>EARTH SCIENCE</Category><Topic>CRYOSPHERE</Topic><Term>SNOW/ICE</Term><Variable_Level_1>SNOW/ICE TEMPERATURE</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>Amundsen Sea</Keyword><Sensor_Name><Short_Name>ACOUSTIC SOUNDERS</Short_Name></Sensor_Name><Sensor_Name><Short_Name>BAROMETERS</Short_Name><Long_Name>BAROMETERS</Long_Name></Sensor_Name><Sensor_Name><Short_Name>CTD</Short_Name><Long_Name>Conductivity, Temperature, Depth</Long_Name></Sensor_Name><Sensor_Name><Short_Name>GPS</Short_Name><Long_Name>Global Positioning System</Long_Name></Sensor_Name><Sensor_Name><Short_Name>ICE AUGERS</Short_Name></Sensor_Name><Sensor_Name><Short_Name>RADIOMETERS</Short_Name></Sensor_Name><Sensor_Name><Short_Name>SALINOMETERS</Short_Name></Sensor_Name><Sensor_Name><Short_Name>SNOW TUBE</Short_Name><Long_Name>SNOW TUBE</Long_Name></Sensor_Name><Sensor_Name><Short_Name>THERMOMETERS</Short_Name><Long_Name>THERMOMETERS</Long_Name></Sensor_Name><Source_Name><Short_Name>BUOYS</Short_Name></Source_Name><Source_Name><Short_Name>GROUND-BASED OBSERVATIONS</Short_Name><Long_Name>GROUND-BASED OBSERVATIONS</Long_Name></Source_Name><Temporal_Coverage><Start_Date>2007-10-01</Start_Date><Stop_Date>2007-12-14</Stop_Date></Temporal_Coverage><Temporal_Coverage><Start_Date>2009-02-06</Start_Date><Stop_Date>2009-03-19</Stop_Date></Temporal_Coverage><Data_Set_Progress>complete</Data_Set_Progress><Spatial_Coverage><Southernmost_Latitude>-75</Southernmost_Latitude><Northernmost_Latitude>-68.5</Northernmost_Latitude><Westernmost_Longitude>-120</Westernmost_Longitude><Easternmost_Longitude>-75</Easternmost_Longitude></Spatial_Coverage><Location><Location_Category>CONTINENT</Location_Category><Location_Type>ANTARCTICA</Location_Type></Location><Location><Location_Category>OCEAN</Location_Category><Location_Type>SOUTHERN OCEAN</Location_Type><Location_Subregion1>BELLINGSHAUSEN SEA</Location_Subregion1></Location><Access_Constraints>These data are freely, openly, and fully accessible without restrictions.</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.</Use_Constraints><Data_Set_Language>English</Data_Set_Language><Data_Center><Data_Center_Name><Short_Name>NOAA</Short_Name><Long_Name>National Oceanic and Atmospheric Administration</Long_Name></Data_Center_Name><Data_Center_URL>http://nsidc.org/noaa/</Data_Center_URL><Personnel><Role>Data Center Contact</Role><First_Name>NOAA</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>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>FTP</Distribution_Media><Distribution_Size>13-500 KB</Distribution_Size><Distribution_Format>Excel</Distribution_Format></Distribution><Reference>Ackley, S. F., H. Xie, E. A. Tichenor. 2015. Ocean heat flux under Antarctic sea ice in the Bellingshausen and Amundsen Seas: Two case studies. Annals of Glaciology 56(69): 200-10. doi: 10.3189/2015AoG69A890.

Ackley, S. F., M. J. Lewis, C. H. Fritsen, and H. Xie. 2008. Internal melting in Antarctic sea ice: development of "Gap Layers". Geophysical Research Letters 35(L11503). doi: 10.1029/2008GL033644

Carnat G., F. Brabant, I. Dumont, M. Vancoppenolle, S. F. Ackley, C. Fritsen, B. Delille, J. L. Tison. 2016. Influence of short-term synoptic events and snow depth on DMS, DMSP, and DMSO dynamics in Antarctic spring sea ice. Elementa: Science of the Anthropocene 4(1), 000135. doi: 10.12952/journal.elementa.000135.

De Jong, J. T. M., S. E. Stammerjohn, S. F. Ackley, J. L. Tison, N. Mattielli, V. Schoemann. 2015. Sources and fluxes of dissolved iron in the Bellingshausen Sea (West Antarctica): The importance of sea ice, icebergs and the continental margin. Marine Chemistry 177: 518-535. doi: 10.1016/j.marchem.2015.08.004.

DeLiberty, T. L., C. A. Geiger, S. F. Ackley, A. P. Worby, M. L. Van Woert. 2011. Estimating the Annual Cycle of Sea-Ice Thickness and Volume in the Ross Sea. Deep-Sea Research II: Topical Studies in Oceanography 58(9): 1250-1260. doi: 10.1016/j.dsr2.2010.12.005.

Fritsen, C. H., E. D. Wirthlin, D. K. Momberg, M. J. Lewis, S. F. Ackley. 2011. Bio-optical properties of Antarctic pack ice in the early austral spring. Deep-Sea Research II: Topical Studies in Oceanography 58(9): 1052-1061. doi: 10.1016/j.dsr2.2010.10.028.

Geilfus, N. X., J. L. Tison, S. F. Ackley, R. J. Gulley, S. Rysgaard, L. A. Miller, B. Delille. 2014.  Sea Ice pCO2 dynamics and air-ice CO2 Fluxes during the Sea Ice Mass Balance in the Antarctic (SIMBA) Experiment-Bellingshausen Sea, Antarctica. The Cryosphere 8(6): 2395-2407.

Kern, S., B. Ozsoy-Cicek, S. Willmes, M. Nicolaus, C. Haas, and S. F. Ackley. 2011. An intercomparison between AMSR-E snow-depth and satellite C- and Ku-band radar backscatter data for Antarctic sea ice.  Annals of Glaciology 52(57): 279-290.

Lewis, M. J., J. L. Tison, B. Weissling, B. Delille, S. F. Ackley, F. Brabant, H. Xie. 2011. Sea ice and snow cover characteristics during the winter-spring transition in the Bellingshausen Sea: an overview of SIMBA 2007. Deep Sea Research II: Topical Studies in Oceanography 58(9): 1019-1038. doi: 10.1016/j.dsr2.2010.10.027

Ozsoy-Cicek, B., S. F. Ackley, H. Xie, D. Yi, and H. J. Zwally. 2013. Sea ice thickness retrieval algorithms based on in-situ surface elevation and thickness values for application to altimetry. Journal of Geophysical Research: Oceans 118(8): 3807-3822. doi: 10.1002/jgrc.20252.

Ozsoy-Cicek, B., S. Kern, S. F. Ackley, H. Xie, A. E. Tekeli. 2011. Intercomparisons of Antarctic sea ice properties from ship observations, active and passive microwave satellite observations in the Bellingshausen Sea. Deep Sea Research II. doi: 10.1016/j.dsr2.2010.10.031.

Ozsoy-Cicek, B., S. F. Ackley, A. Worby, H. Xie, and J. Lieser. 2011. Antarctic sea ice extents and concentrations: Comparison of satellite and ship measurements from IPY cruises. Annals of Glaciology 52(57): 318-326.

Tekeli, A. E., S. Kern, S. F. Ackley, B. Ozsoy-Cicek, H. Xie. 2011. Summer Antarctic sea ice as seen by ASAR and AMSR-E and observed during two IPY field cruises: A case study. Annals of Glaciology 52(57): 327-336.

Vancoppenolle, M., R. Timmermann, S. F. Ackley, T. Fichefet, H. Goosse, P. Heil, K. C. Leonard, J. Lieser, M. Nicolaus, T. Papakyriakou, J. L. Tison. 2011. Assessment of radiation forcing data sets for large-scale sea ice models in the Southern Ocean. Deep-Sea Research II: Topical Studies in Oceanography 58(9): 1237-1249. doi: 10.1016/j.dsr2.2010.10.039.

Weissling, B. P., M. J. Lewis, S. F. Ackley. 2011. Sea-ice thickness and mass at Ice Station Belgica, Bellingshausen Sea, Antarctica. Deep-Sea Research II 58: 1112-24. doi: 10.1016/j.dsr2.2010.10.032.

Weissling, B. P. and S. F. Ackley. 2011.  Antarctic sea ice altimetry: Scale and resolution effects on derived ice thickness distribution. Annals of Glaciology 52(57): 225-235

Weissling, B., S. F. Ackley, P. Wagner, and H. Xie. 2009. EISCAM - Digital image acquisition and processing for sea ice parameters from ships. Cold Regions Science and Technology 57(1): 49-60. doi: 10.1016/j.coldregions.2009.01.001.

Worby, A. P., K. M. Meiners, S. F. Ackley. 2011. Antarctic sea-ice zone research during the International Polar Year, 2007-2009. Deep-Sea Research II: Topical Studies in Oceanography 58(9): 993-998. doi: 10.1016/j.dsr2.2011.01.001.

Xie, H., S. F. Ackley, D. Yi, H. J. Zwally, P. Wagner, B. Weissling, M. Lewis, and K. Ye. 2011. Sea ice thickness distribution of the Bellingshausen Sea from surface measurements and ICESat altimetry. Deep Sea Research Part II: Topical Studies in Oceanography 58(9): 1039-1051. doi: 10.1016/j.dsr2.2010.10.038.

Xie, H., A. Tekeli, S. F. Ackley, D. Yi, and H. J. Zwally. 2013. Sea ice thickness estimations from ICESat Altimetry over the Bellingshausen and Amundsen Seas, 2003-2009. Journal of Geophysical Research: Oceans 118(5): 2438-2453. doi: 10.1002/jgrc.20179.</Reference><Summary><Abstract>This data set provides different measurements of Antarctic sea ice data collected as part of the Sea Ice Mass Balance in the Antarctic (SIMBA) program. The observation program was carried out in the fall of 2007 and the spring of 2009 during a drift program of the Nathaniel B. Palmer icebreaker along with a buoy network established on the Antarctic sea ice. Measurements of ice thickness, temperature profiles, large-scale deformation, and other sea ice characteristics were made.</Abstract></Summary><Related_URL><URL_Content_Type><Type>VIEW RELATED INFORMATION</Type></URL_Content_Type><URL>http://doi.org/10.7265/N53F4MJ7</URL></Related_URL><Related_URL><URL_Content_Type><Type>GET DATA</Type></URL_Content_Type><URL>https://noaadata.apps.nsidc.org/NOAA/G10014/</URL><Description>HTTPS</Description></Related_URL><Metadata_Name>CEOS IDN DIF</Metadata_Name><Metadata_Version>VERSION 9.9</Metadata_Version><DIF_Creation_Date>2016-12-09</DIF_Creation_Date><Last_DIF_Revision_Date>2025-12-03</Last_DIF_Revision_Date><Extended_Metadata><Metadata><Group>NSIDC</Group><Name>Version Summary</Name><Value>Initial release of this data set.</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>Level of Service</Name><Value><Level>Standard</Level></Value></Metadata><Metadata><Group>NSIDC</Group><Name>Full Dataset Citation</Name><Value>Ackley, S. F., Delille, B., Tison, J. L., Carnat, G., Weissling, B., Lewis, M. J., Fritsen, C. H. &amp; Stammerjohn, S. (2016). &lt;i&gt;Sea Ice Mass Balance in the Antarctic (SIMBA)&lt;/i&gt;. (G10014, Version 1). [Data Set]. Boulder, Colorado USA. National Snow and Ice Data Center. &lt;a href="https://doi.org/10.7265/N53F4MJ7"&gt;https://doi.org/10.7265/N53F4MJ7&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>jroebuck</user-id><native-id>mmt_service_32962</native-id><concept-id>S2721063021-NSIDCV0</concept-id><provider-id>NSIDCV0</provider-id><revision-id>1</revision-id><concept-type>service</concept-type><revision-date>2023-06-27T14:22:11.750Z</revision-date></meta><umm><URL><URLValue>https://noaadata.apps.nsidc.org/</URLValue></URL><Name>NSIDCV0_NOAA_Data_HTTPS_File_System</Name><Type>NOT PROVIDED</Type><Version>1</Version><LongName>NOAA@NSIDC HTTPS File System</LongName><Description>Access and download NOAA@NSIDC data using a web browser, or through a command line utility such as WGET, or using programming languages such as R or Python.</Description><RelatedURLs><RelatedURL><URL>https://nsidc.org/data/user-resources/help-center/how-access-and-download-noaansidc-data</URL><Type>VIEW RELATED INFORMATION</Type><Description>NOAA@NSIDC HTTPS Access Guide</Description><URLContentType>PublicationURL</URLContentType></RelatedURL></RelatedURLs><ContactGroups><ContactGroup><Roles><Role>USER SERVICES</Role></Roles><GroupName>NSIDC 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>AUTHOR</Role><Role>DEVELOPER</Role><Role>PUBLISHER</Role><Role>SERVICE PROVIDER</Role></Roles><LongName>National Oceanic and Atmospheric Administration at the National Snow and Ice Data Center</LongName><ShortName>NSIDC_NOAA</ShortName></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://noaadata.apps.nsidc.org/NOAA/G10014/</URLValue></nsidc></Value></Metadata></Extended_Metadata></DIF>
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