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Dataset Overview | National Centers for Environmental Information (NCEI)

Sea Ice Surface Roughness derived from Airborne Topographic Mapper (ATM) lidar elevation data, Arctic, 2009-2018 (NCEI Accession 0209230)

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The surface roughness is derived from Airborne Topographic Mapper (ATM) lidar elevation data acquired during annual, low-altitude NASA Operation IceBridge airborne surveys over Arctic sea ice between the months of March and May. Surface roughness is defined as the standard deviation of elevation per unit area. 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 providing high-resolution measurements of sea ice surface roughness while still containing enough point measurements for robust statistical calculations. Statistics are computed on the distribution of sea ice surface roughness for 10 km along-track segments, for each aircraft flight line.
  • Cite as: Connor, Laurence; Duncan, Kyle; Farrell, Sinead (2020). Sea Ice Surface Roughness derived from Airborne Topographic Mapper (ATM) lidar elevation data, Arctic, 2009-2018 (NCEI Accession 0209230). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/mp9c-y528. Accessed [date].
gov.noaa.nodc:0209230
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Distributor NOAA National Centers for Environmental Information
+1-301-713-3277
NCEI.Info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Time Period 2009-03-31 to 2018-04-16
Spatial Bounding Box Coordinates
West: -180
East: 180
South: 67
North: 90
Spatial Coverage Map
General Documentation
Publication Dates
  • publication: 2020-03-27
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Historical archive - data has been stored in an offline storage facility
Data Update Frequency As needed
Supplemental Information
Submission Package ID: WFEL0U
Purpose This dataset is available to the public for a wide variety of uses including scientific research and analysis.
Use Limitations
  • accessLevel: Public
  • 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.
Dataset Citation
  • Cite as: Connor, Laurence; Duncan, Kyle; Farrell, Sinead (2020). Sea Ice Surface Roughness derived from Airborne Topographic Mapper (ATM) lidar elevation data, Arctic, 2009-2018 (NCEI Accession 0209230). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/mp9c-y528. Accessed [date].
Cited Authors
Principal Investigators
  • Laurence Connor
Collaborators
  • Sinead Farrell
Resource Providers
Points of Contact
Publishers
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Global Change Master Directory (GCMD) Science Keywords Provider Keywords
  • Maximum Surface Roughness
  • Mean Surface Roughness
  • Surface Roughness 25th Percentile
  • Surface Roughness 5th Percentile
  • Surface Roughness 75th Percentile
  • Surface Roughness 95th Percentile
  • Surface Roughness 99th Percentile
  • Time
Data Center keywords NODC SUBMITTING INSTITUTION NAMES THESAURUS
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Global Change Master Directory (GCMD) Instrument Keywords Provider Instruments
  • Airborne Topographic Mapper (ATM)
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Connor, Laurence; Duncan, Kyle; Farrell, Sinead (2020). Sea Ice Surface Roughness derived from Airborne Topographic Mapper (ATM) lidar elevation data, Arctic, 2009-2018 (NCEI Accession 0209230). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/mp9c-y528. Accessed [date].
Access Constraints
  • 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.
Fees
  • 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.
Lineage information for: dataset
Processing Steps
  • 2020-03-27T19:56:30Z - NCEI Accession 0209230 v1.1 was published.
Output Datasets
Lineage information for: dataset
Processing Steps
  • Parameter or Variable: Time (calculated); Units: YYYY-MM-DD HH:MM:SS; Observation Category: model output; Sampling Instrument: GPS.
  • Parameter or Variable: LATITUDE (calculated); Units: degrees; Observation Category: model output; Sampling Instrument: GPS.
  • Parameter or Variable: LONGITUDE (calculated); Units: degrees; Observation Category: model output; Sampling Instrument: GPS.
  • Parameter or Variable: Mean Surface Roughness (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR.
  • Parameter or Variable: Maximum Surface Roughness (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR.
  • Parameter or Variable: Surface Roughness 5th Percentile (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR.
  • Parameter or Variable: Surface Roughness 25th Percentile (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR.
  • Parameter or Variable: Surface Roughness 75th Percentile (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR.
  • Parameter or Variable: Surface Roughness 95th Percentile (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR.
  • Parameter or Variable: Surface Roughness 99th Percentile (calculated); Units: meters; Observation Category: model output; Sampling Instrument: LIDAR.
Acquisition Information (collection)
Instrument
  • GPS
  • LIDAR
Last Modified: 2024-06-10T13:09:51Z
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