gov.noaa.nodc:0237069 eng utf8 model NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2025-05-16T15:48:17Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Sea Ice Surface Elevation derived from Airborne Topographic Mapper (ATM) lidar elevation data, Arctic, 2009-2018 (NCEI Accession 0237069) 2021-07-27 publication 2021-06-20 creation International DOI Foundation (IDF) 10.25921/rmmc-zc80 NOAA National Centers for Environmental Information gov.noaa.nodc:0237069 NCEI Archive Management System 0237069 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher Kyle Duncan University of Maryland, College Park (UMD) kyle.duncan@noaa.gov https://www.umd.edu/ HTTPS University of Maryland, College Park (UMD) website Institution web page information resourceProvider University of Maryland, College Park (UMD) https://www.umd.edu/ HTTPS University of Maryland, College Park (UMD) website Institution web page information resourceProvider Laurence Connor principalInvestigator Kyle Duncan University of Maryland, College Park (UMD) kyle.duncan@noaa.gov https://www.umd.edu/ HTTPS website Institution web page information collaborator Sinead Farrell collaborator Connor, Laurence author Duncan, Kyle University of Maryland, College Park (UMD) kyle.duncan@noaa.gov https://www.umd.edu/ HTTPS website Institution web page information author Farrell, Sinead author US National Aeronautic and Space Administration (NASA) contributor tableDigital The gridded Surface Elevation product is derived from Airborne Topographic Mapper (ATM) lidar elevation data acquired during annual, low-altitude NASA Operation IceBridge airborne surveys over Arctic sea ice. IceBridge ATM data were acquired from March 2009 to May 2018. Due to the conical scanning geometry of the ATM lidar, across-track sampling is non-uniform, with sampling density greatest at the swath edges. To account for the variation in sample density, ATM elevation data are gridded. Each grid cell has an along-track dimension of 30 m and an across-track dimension that is inversely proportional to the across-track sampling density. The grid configuration optimizes ATM sample density which provides high-resolution measurements of elevation while it still contains enough point measurements for robust statistical calculations. This dataset is available to the public for a wide variety of uses including scientific research and analysis. completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0237069 Preview graphic PNG 0237069 NCEI ACCESSION NUMBER 2021-06-09 publication SEA SURFACE TOPOGRAPHY theme NODC DATA TYPES THESAURUS GPS LIDAR instrument NODC INSTRUMENT TYPES THESAURUS model output theme NODC OBSERVATION TYPES THESAURUS US National Aeronautic and Space Administration dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS University of Maryland, College Park dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS World-Wide Distribution place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication EARTH SCIENCE > OCEANS > SEA SURFACE TOPOGRAPHY theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Along-Track Distance Elevation 1 Elevation 10 Elevation 2 Elevation 3 Elevation 4 Elevation 5 Elevation 6 Elevation 7 Elevation 8 Elevation 9 Latitude 1 Latitude 10 Latitude 2 Latitude 3 Latitude 4 Latitude 5 Latitude 6 Latitude 7 Latitude 8 Latitude 9 Longitude 1 Longitude 10 Longitude 2 Longitude 3 Longitude 4 Longitude 5 Longitude 6 Longitude 7 Longitude 8 Longitude 9 NumPts 1 NumPts 10 NumPts 2 NumPts 3 NumPts 4 NumPts 5 NumPts 6 NumPts 7 NumPts 8 NumPts 9 SDev 1 SDev 10 SDev 2 SDev 3 SDev 4 SDev 5 SDev 6 SDev 7 SDev 8 SDev 9 UTC Time theme Provider Keywords GPS RECEIVERS > GPS RECEIVERS LIDAR > Light Detection and Ranging instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian GPS/Navigation System instrument Provider Instruments Aircraft platform Provider Platform Types GEOGRAPHIC REGION > GLOBAL OCEAN place Global Change Master Directory (GCMD) Location Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian J1LABY Send2NCEI Submission Package ID accessLevel: public otherRestrictions Cite as: Connor, Laurence; Duncan, Kyle; Farrell, Sinead (2021). Sea Ice Surface Elevation derived from Airborne Topographic Mapper (ATM) lidar elevation data, Arctic, 2009-2018 (NCEI Accession 0237069). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/rmmc-zc80. Accessed [date]. Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. A decadal study of inter-annual variability in Arctic sea ice freeboard using airborne laser altimetry (2006-2016), presented at the 2017 IGS International Symposium on Polar Ice, Polar Climate, and Polar Change, Boulder, Colorado, 14-19 Aug, 2017. 2017 publication Connor, Laurence author Duncan, Kyle author Farrell, Sinead author documentDigital crossReference sciencePaper Laboratory for Satellite Altimetry/Sea Ice and Polar Dynamics Science Team - Surface Elevation publication https://www.star.nesdis.noaa.gov/socd/lsa/SeaIce/SurfaceElevation.php HTTPS STAR/LSA Surface Elevation Data Data Product Webpage information crossReference eng; USA utf8 environment oceans geoscientificInformation -180 180 67 90 2009-03-31 2018-04-16 NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov pointOfContact In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. Originator data format 6816.652 https://doi.org/10.25921/rmmc-zc80 HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/oas/237069 HTTPS Web browser Descriptive Information Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/download/237069 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0184/0237069/ FTP Any FTP client FTP These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP). download dataset NCEI Accession 0237069 v1.1 was published. 2021-07-27T16:41:14Z NCEI Accession 0237069 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0237069/1.1 HTTPS NCEI Accession 0237069 v1.1 published 2021-07-27T16:41:14Z download model Parameter or Variable: UTC Time (calculated); Units: YYYY-MM-DD HH:MM:SS; Observation Category: model output; Sampling Instrument: GPS Parameter or Variable: Along-Track Distance (calculated); Units: meters; Observation Category: model output; Sampling Instrument: GPS/Navigation System Parameter or Variable: Longitude 1 (calculated); Units: degrees; Observation Category: model output; Sampling Instrument: GPS Parameter or Variable: Longitude 2 (calculated); Units: degrees; Observation Category: model output; Sampling Instrument: GPS Parameter or Variable: Longitude 3 (calculated); Units: degrees; Observation Category: model output; Sampling Instrument: GPS Parameter or Variable: Longitude 4 (calculated); Units: degrees; Observation Category: model output; Sampling Instrument: GPS Parameter or Variable: Longitude 5 (calculated); Units: degrees; Observation Category: model output; Sampling Instrument: GPS Parameter or Variable: Longitude 6 (calculated); Units: degrees; Observation Category: model output; Sampling Instrument: GPS Parameter or Variable: Longitude 7 (calculated); Units: degrees; Observation Category: model output; Sampling Instrument: GPS Parameter or Variable: Longitude 8 (calculated); Units: degrees; Observation Category: model output; Sampling Instrument: GPS Parameter or Variable: Longitude 9 (calculated); Units: degrees; Observation Category: model output; Sampling Instrument: GPS Parameter or Variable: Longitude 10 (calculated); Units: degrees; Observation Category: model output; Sampling Instrument: GPS Parameter or Variable: Latitude 1 (calculated); Units: degrees; Observation Category: model output; Sampling Instrument: GPS Parameter or Variable: Latitude 2 (calculated); Units: degrees; Observation Category: model output; Sampling Instrument: GPS Parameter or Variable: Latitude 3 (calculated); Units: degrees; Observation Category: model output; Sampling Instrument: GPS Parameter or Variable: Latitude 4 (calculated); Units: degrees; Observation Category: model output; Sampling Instrument: GPS Parameter or Variable: Latitude 5 (calculated); Units: degrees; Observation Category: model output; Sampling Instrument: GPS Parameter or Variable: Latitude 6 (calculated); Units: degrees; Observation Category: model output; Sampling Instrument: GPS Parameter or Variable: Latitude 7 (calculated); Units: degrees; Observation Category: model output; Sampling Instrument: GPS Parameter or Variable: Latitude 8 (calculated); Units: degrees; Observation Category: model output; Sampling Instrument: GPS Parameter or Variable: Latitude 9 (calculated); Units: degrees; Observation Category: model output; Sampling Instrument: GPS Parameter or Variable: Latitude 10 (calculated); Units: degrees; Observation Category: model output; Sampling Instrument: GPS Parameter or Variable: Elevation 1 (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: Elevation 2 (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: Elevation 3 (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: Elevation 4 (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: Elevation 5 (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: Elevation 6 (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: Elevation 7 (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: Elevation 8 (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: Elevation 9 (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: Elevation 10 (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: SDev 1 (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: SDev 2 (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: SDev 3 (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: SDev 4 (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: SDev 5 (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: SDev 6 (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: SDev 7 (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: SDev 8 (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: SDev 9 (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: SDev 10 (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: NumPts 1 (calculated); Units: count; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: NumPts 2 (calculated); Units: count; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: NumPts 3 (calculated); Units: count; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: NumPts 4 (calculated); Units: count; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: NumPts 5 (calculated); Units: count; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: NumPts 6 (calculated); Units: count; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: NumPts 7 (calculated); Units: count; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: NumPts 8 (calculated); Units: count; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: NumPts 9 (calculated); Units: count; Observation Category: model output; Sampling Instrument: LIDAR Parameter or Variable: NumPts 10 (calculated); Units: count; Observation Category: model output; Sampling Instrument: LIDAR asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian GPS GPS Global Positioning System receiver satellite-based instrument used for geo-location, positioning and navigation LIDAR LIDAR Light Detection and Ranging Remote sensing instrument with laser and receiver that uses time, strength and polarization of return to determine characteristics of target.