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SEDNA: Sea ice Experiment - Dynamic Nature of the Arctic

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Entry ID

G02200

Summary

The Sea Ice Experiment - Dynamic Nature of the Arctic (SEDNA) is an international collaborative effort to improve the understanding of the interaction between sea ice dynamics and Arctic climate. It was also the first International Polar Year 2007-2008 field project.

The SEDNA data portal provides access to many and varied data sets from the diverse set of campaign participants. The data portal holds 37 entries from remote sensing to in situ measurements collected during the ice camp in March and April 2007. This data collection is distributed by the International Arctic Research Center (IARC) at the University of Alaska Fairbanks (UAF). NSIDC maintains the metadata for this data collection, so the data are easier to find through the NSIDC data catalog and those catalogs with which NSIDC shares metadata. This summary and metadata are accurate as of June 2011. The UAF archive site may have more recent data updates and publications, please visit their site for the most up-to-date information.

The mass balance of sea ice and the evolution of sea ice thickness distribution is a key component of the Arctic system. It is controlled by thermodynamic ice growth and melt, mechanical redistribution through ridging and rafting, and transport. The SEDNA experiment was designed in a regional Lagrangian frame of reference and tracked the evolution of a region of ice surrounding the Applied Physics Laboratory Ice Station (APLIS) 2007 ice camp in an effort to evaluate the role of mechanical redistribution on ice thickness distribution. The SEDNA data collection is unique in that several ice thickness data sets were inter-calibrated and coordinated with monitoring of the ice pack strain-rate (horizontal deformation) and measurements of internal ice stress. This experiment was designed to improve our understanding of the relationship between sea ice thickness and dynamics and to investigate the stress and strain-rate relationships with a comprehensive suite of spatio-temporal coincident observations.

Measurements were made with the aim of resolving the time evolving ice thickness distribution in the vicinity of the ice camp, to map ice pack deformation (strain-rate), and track strain-rate and internal ice stress in time. This has required a detailed inter-comparison of ice thickness measurements from a number of sources including submarine upward looking sonar (ULS) (Peter Wadhams), AUV multi-beam ULS (Peter Wadhams and Martin Doble), airborne LIDAR (Rene Forsberg), Helicopter borne electromagnetic induction (EMI) (Christian Haas), and in situ snow and ice measurements with drill and EM-31 soil surveyor (Cathy Geiger and Jackie Richter-Menge). Sea ice deformation was mapped in near-real time from analysis of RADARSat-1 ScanSAR-B by the Map of Moving Topography method (Mani Thomas, Chandra Kambhattmettu, and Cathy Geiger), and high temporal sampling was achieved with an array of GPS drifting buoys (Jenny Hutchings). Matt Pruis used GPS buoys to measure deformation of single leads. Ice stress and mass balance were measured with CRREL stress buoys (Jackie Richter-Menge). Additional measurements include a 3-m weather station (Andrew Roberts), CTD profiles every six hours (Jeremy Wilkinson), downward looking Acoustic Doppler Current Profiler (ADCP), and met-buoys (Ignatius Rigor).

Data are generally available in three formats: the original format, netCDF, and ASCII. The original version is not always well documented. The netCDF version includes carefully collected documentation placed in the header fields of the netCDF file. Often, data are also available in a separate ASCII file as columns of data concatenated behind the netCDF header information in plain text form.

SEDNA is supported by the NSF Grant "Collaborative Research: Detailed Investigation of the Dynamic Component of Sea Ice Mass Balance" (OPP ARC 0612527 (UAF), 0611991 (CRREL), and 0612105 (University of Delaware)).

Geographic Coverage

 

Spatial Coordinates:
N: 76°     S: 70°     E: -130°     W: -170°    

Data Set Citation

Dataset Creator: J. Hutchings, C. Geiger, J. Richter-Menge, A. Roberts, M. Doble, R. Forsberg, K. Giles, C. Haas, S. Hendriks, C. Khambhamettu, S. Laxon, T. Martin, M. Pruis, M. Thomas, P. Wadhams, D. Wilkinson, J. Zwally
Dataset Title: SEDNA: Sea ice Experiment - Dynamic Nature of the Arctic
Dataset Release Date: 2011-05-19
Dataset Release Place: Fairbanks, Alaska USA
Dataset Publisher: IARC: International Arctic Research Center, UAF
Online Resource: http://nsidc.org/data/g02200.html
Dataset DOI: http://dx.doi.org/10.7265/N5KK98PH

Temporal Coverage

Start Date: 2007-02-01
Stop Date: 2007-06-30

Location Keywords

  • OCEAN ARCTIC OCEAN BEAUFORT SEA PERRENIAL-SEASONAL ICE BOUNDARY

Science Keywords

  • Cryosphere Sea Ice Sea Ice Mass Balance
  • Cryosphere Sea Ice Ice Deformation
  • Cryosphere Snow/Ice Ice Depth/Thickness Distribution
  • Cryosphere Snow/Ice Ice Motion
  • Oceans Sea Ice Sea Ice Dynamics
  • Oceans Sea Ice Ice Deformation

Ancillary Keywords

  • climate variability
  • Cryosphere
  • DRIFTING STATIONS
  • electromagnetic induction (EMI)
  • Field Camps
  • Ice Deformation
  • ice dynamics
  • Ice Growth
  • Ice Melt
  • Ice Thickness Distribution
  • IN-SITU
  • Ocean Drifting Station
  • Physical Oceanography
  • Sea Ice
  • sea ice camps
  • sea ice mass balance
  • Sea Ice Surface Elevation

ISO Topic Category (View Definitions)

  • Climatology/Meteorology/Atmosphere

Platform

  • AIRCRAFT
  • AUVS Autonomous Underwater Vehicles
  • BUOYS
  • HELICOPTER
  • METEOROLOGICAL STATIONS
  • SATELLITES
  • SUBMARINE

Instrument

  • ADCP Acoustic Doppler Current Profiler
  • CTD Conductivity, Temperature, Depth
  • GPR Ground Penetrating Radar
  • GPS Global Positioning System
  • ICE STRESS SENSORS
  • LIDAR Light Detection and Ranging
  • SAR Synthetic Aperture Radar
  • THERMISTORS
  • UPWARD LOOKING SONAR
  • VISUAL OBSERVATIONS

Use Constraints

No use constraints. The data are freely available to anyone who wants to use it. If data are used in a publication, please cite using the formal data citation.

Data Set Progress

complete

Data Center

National Snow and Ice Data Center
Data Center URL: http://nsidc.org

Data Center Personnel

Name: NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:

  • National Snow and Ice Data Center
  • CIRES, 449 UCB
  • University of Colorado

City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA

NSIDC National Oceanic and Atmospheric Administration
Data Center URL: http://nsidc.org/noaa/

Data Center Personnel

Name: NSIDC NOAA User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:

  • National Snow and Ice Data Center
  • CIRES, 449 UCB
  • University of Colorado

City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA

Distribution

Distribution Media: Online (HTTP)
Distribution Format: ASCII Text

Distribution Media: Online (HTTP)
Distribution Format: NetCDF

Personnel

Jennifer Hutchings
Role: INVESTIGATOR
Email: jenny@iarc.uaf.edu
Contact Address:

  • University of Alaska, Fairbanks
  • International Arctic Research Center
  • P.O. Box 757340

City: Fairbanks
Province or State: AK
Postal Code: 99775-7340
Country: USA

Cathleen Geiger
Role: INVESTIGATOR
Email: cgeiger@udel.edu
Contact Address:

  • College of Earth, Ocean, and Environment, University of Delaware
  • Department of Geography

Jacqueline Richter-Menge
Role: INVESTIGATOR
Email: Jaqueline.A.Richter-Menge@erdc.usaec.army.mil
Contact Address:

  • Cold Regions Research and Engineering Laboratory
  • 72 Lyme Rd.

City: Hanover
Province or State: NH
Postal Code: 03755-1290
Country: USA

Andrew Roberts
Role: INVESTIGATOR
Contact Address:

  • Naval Post-Graduate School

City: Monteray
Province or State: CA
Country: USA

Pablo Clemente-Colón
Role: INVESTIGATOR
Phone: 1 301 394-3100
Email: Pablo.Clemente-Colon@natice.noaa.gov
Contact Address:

  • National/Naval Ice Center
  • NOAA Satellite Operations Facility (NSOF)
  • 4251 Suitland Road
  • Washington, D.C. 20395

City: Washington, D.C.
Postal Code: 20395
Country: USA

Bruce Elder
Role: TECHNICAL CONTACT
Email: Bruce.C.Elder@erdc.usace.army.mil
Contact Address:

  • Cold Regions Research and Engineering Laboratory
  • 72 Lyme Rd.

City: Hanover
Province or State: NH
Postal Code: 03755-1290
Country: USA

Martin Doble
Role: INVESTIGATOR
Contact Address:

  • University of Cambridge, Cambridge, UK
  • Department of Applied Mathematics and Theoretical Physics (DAMTP)

Rene Forsberg
Role: INVESTIGATOR
Contact Address:

  • Danish National Space Center

City: Copenhagen
Country: Denmark

Katharine Giles
Role: TECHNICAL CONTACT
Contact Address:

  • University College London
  • Centre for Polar Observation and Modelling (CPOM)

Christian Haas
Role: INVESTIGATOR
Contact Address:

  • University of Alberta
  • Earth and Atmospheric Sciences

City: Edmonton
Country: Canada

Dan Carlson
Role: TECHNICAL CONTACT
Contact Address:

  • University of Alaska, Fairbanks

Nick Hughes
Role: INVESTIGATOR
Contact Address:

  • Norwegian Met Office

City: Tromso
Country: Norway

Stefan Hendricks
Role: TECHNICAL CONTACT
Contact Address:

  • Alfred Wegener Institute for Polar and Marine Research

City: Bremerhaven
Country: Germany

Rob Chadwell
Role: TECHNICAL CONTACT
Contact Address:

  • University of Alaska, Fairbanks
  • International Arctic Research Center

Skip Echert
Role: TECHNICAL CONTACT
Contact Address:

  • NorthWest Research Association

City: Seattle
Province or State: Washington
Country: USA

Robert Harris
Role: TECHNICAL CONTACT
Contact Address:

  • PolarTREC

City: Hartford
Province or State: VT

Chandra Khambhamettu
Role: INVESTIGATOR
Contact Address:

  • University of Delaware
  • Video Image Modeling and Synthesis Laboratory

Ron Kwok
Role: INVESTIGATOR
Contact Address:

  • Jet Propulsion Laboratory (JPL)
  • California Institute of Technology

City: Pasadena
Province or State: CA
Country: USA

Seymour Laxon
Role: TECHNICAL CONTACT
Contact Address:

  • University College London
  • Centre for Polar Observation and Modelling (CPOM)

Ben Holt
Role: TECHNICAL CONTACT
Contact Address:

  • Jet Propulsion Laboratory (JPL)

City: Pasedena
Province or State: CA
Country: USA

Torge Martin
Role: TECHNICAL CONTACT
Contact Address:

  • IFM-GEOMAR

City: Kiel
Country: Germany

Don Perovich
Role: TECHNICAL CONTACT
Phone: 1 603 646-4255
Email: Donald.K.Perovich@erdc.usace.army.mil
Contact Address:

  • Cold Regions Research and Engineering Laboratory
  • 72 Lyme Rd.

City: Hanover
Province or State: NH
Postal Code: 03755-1290
Country: USA

Matthew Pruis
Role: INVESTIGATOR
Contact Address:

  • NorthWest Research Associates

City: Seattle
Province or State: Washington

Ignatius G. Rigor
Role: INVESTIGATOR
Phone: 1 206 685-2571
Fax: 1 206 543-3521
Email: igr@apl.washington.edu
Contact Address:

  • University of Washington
  • Polar Science Center
  • Applied Physics Laboratory
  • 1013 NE 40th Street

City: Seattle
Province or State: WA
Postal Code: 98105

Eggert Jon Magnusson
Role: TECHNICAL CONTACT
Contact Address:

    City: Gavia
    Country: Iceland

    Alice Orlich
    Role: TECHNICAL CONTACT
    Contact Address:

    • University of Alaska, Fairbanks
    • International Arctic Research Center

    Henriette Skourup
    Role: TECHNICAL CONTACT
    Contact Address:

    • Danish National Space Center

    City: Copenhagen
    Country: Denmark

    Mani Thomas
    Role: TECHNICAL CONTACT
    Contact Address:

    • University of Delaware
    • Video Image Modeling and Synthesis Laboratory

    Adrian Turner
    Role: TECHNICAL CONTACT
    Contact Address:

    • University College London
    • Centre for Polar Observation and Modelling (CPOM)

    P. Wadhams
    Role: INVESTIGATOR
    Email: pw11@cam.ac.uk
    Contact Address:

    • University of Cambridge
    • Department of Applied Mathematics and Theoretical Physics

    D. Wilkinson
    Role: TECHNICAL CONTACT

    Richard Yeo
    Role: TECHNICAL CONTACT
    Contact Address:

      City: Gavia
      Country: Iceland

      H. Jay Zwally
      Role: TECHNICAL CONTACT
      Phone: 1 301 614-5643
      Fax: 1 301 614-5644
      Email: H.J.Zwally@nasa.gov
      Contact Address:

      • Laboratory for Hydrospheric Processes
      • NASA/Goddard Space Flight Center
      • Code 614.1

      City: Greenbelt
      Province or State: MD
      Postal Code: 20771
      Country: USA

      Related URL

      VIEW PROJECT HOME PAGE
      SEDNA Data Portal

      VIEW PROJECT HOME PAGE
      SEDNA Presentation by C. Geiger

      VIEW PROJECT HOME PAGE
      SEDNA Publication List

      VIEW PROJECT HOME PAGE
      SEDNA Publications List

      VIEW PROJECT HOME PAGE
      SEDNA: Sea ice Experiment - Dynamic Nature of the Arctic

      VIEW PROJECT HOME PAGE
      SEDNA: Sea ice Experiment - Dynamic Nature of the Arctic Web Site

      Reference

      Hutchings, J., C. Geiger, A. Roberts, J. Richter-Menge, M. Doble, R. Forsberg, K. Giles, C. Haas, S. Hendriks, C. Khambhamettu, S. Laxon, T. Martin, M. Pruis, M. Thomas, P. Wadhams, J. Zwally. 2008. Role of Ice Dynamics in the Sea Ice Mass Balance. EOS Transaction AGU, 89(50), doi:10.1029/2008EO500003.

      Metadata Name and Version

      Metadata Name: CEOS IDN DIF
      Metadata Version: 9.7

      Creation and Review Dates

      DIF Creation Date: 2011-05-19
      Last DIF Revision Date: 2013-03-12

      Metadata Views

      DIF Text-Only

      Directory Interchange Format (DIF) in plain text

      DIF XML

      Directory Interchange Format (DIF) in Extensible Markup Language (XML)

      FGDC HTML

      U.S. Federal Geographic Data Committee (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM)

      ISO HTML

      International Organization for Standardization (ISO) 19115:2003 Geographic Information Metadata

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