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<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>IPUAF1B.001</Entry_ID><Entry_Title>IceBridge UAF GPS/IMU L1B Corrected Position and Attitude Data</Entry_Title><Data_Set_Citation><Dataset_Creator>Larsen, C.</Dataset_Creator><Dataset_Title>IceBridge UAF GPS/IMU L1B Corrected Position and Attitude Data</Dataset_Title><Dataset_Release_Date>2011-12-06</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>1</Version><Other_Citation_Details><Invert_Citation_Order>false</Invert_Citation_Order></Other_Citation_Details><Dataset_DOI>10.5067/LXDUDGNFZXHV</Dataset_DOI><Online_Resource>https://nsidc.org/sites/default/files/ipuaf1b-v001-userguide.pdf</Online_Resource><Dataset_Series_Name>IPUAF1B</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>PLATFORM CHARACTERISTICS</Term><Variable_Level_1>ATTITUDE CHARACTERISTICS</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><ISO_Topic_Category>Geoscientific Information</ISO_Topic_Category><Keyword>IB Position &#x2013;Attitude-GPS-IMU-project</Keyword><Keyword>IceBridge</Keyword><Keyword>IceBridge-project</Keyword><Sensor_Name><Short_Name>GPS</Short_Name><Long_Name>Global Positioning System</Long_Name></Sensor_Name><Sensor_Name><Short_Name>UAF GPS/IMU</Short_Name><Long_Name>University of Alaska Fairbanks Positional/Avionics System</Long_Name></Sensor_Name><Source_Name><Short_Name>AIRCRAFT</Short_Name></Source_Name><Source_Name><Short_Name>DHC-3</Short_Name><Long_Name>DeHavilland DHC-3 Otter</Long_Name></Source_Name><Temporal_Coverage><Start_Date>2009-08-19</Start_Date><Stop_Date>2011-09-12</Stop_Date></Temporal_Coverage><Data_Set_Progress>complete</Data_Set_Progress><Spatial_Coverage><Southernmost_Latitude>55</Southernmost_Latitude><Northernmost_Latitude>72</Northernmost_Latitude><Westernmost_Longitude>-156</Westernmost_Longitude><Easternmost_Longitude>-130</Easternmost_Longitude></Spatial_Coverage><Location><Location_Category>CONTINENT</Location_Category><Location_Type>NORTH AMERICA</Location_Type><Location_Subregion1>UNITED STATES OF AMERICA</Location_Subregion1><Location_Subregion2>ALASKA</Location_Subregion2></Location><Data_Resolution><Latitude_Resolution>Varies</Latitude_Resolution><Longitude_Resolution>Varies</Longitude_Resolution><Temporal_Resolution>Varies</Temporal_Resolution></Data_Resolution><Project><Short_Name>OIB</Short_Name><Long_Name>Operation Ice Bridge</Long_Name></Project><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>UAK-F/GI</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>ASCII</Distribution_Format></Distribution><Reference>Johnson, A. J. 2012. Estimating the Mass Balance of Glaciers in the Glacier Bay Area of Alaska and British Columbia. M.S. Thesis, Geology and Geophys. Dept., Univ. Alaska, Fairbanks, AK. http://glaciers.gi.alaska.edu/theses.

</Reference><Summary><Abstract>This data set contains Global Positioning System (GPS) and Inertial Measurement Unit (IMU) positioning and orientation measurements for the University of Alaska Fairbanks Glacier lidar system campaigns. 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