eng; usa UTF8 dataset SEDNA: Sea ice Experiment - Dynamic Nature of the Arctic Bruce Elder Cold Regions Research and Engineering Laboratory none 72 Lyme Rd. Hanover NH 03755-1290 USA Bruce.C.Elder@erdc.usace.army.mil http://nsidc.org pointOfContact 2013-05-20 ISO 19115 Geographic Information - Metadata First Edition ISO 19115:2003 http://nsidc.org/data/g02200.html SEDNA: Sea ice Experiment - Dynamic Nature of the Arctic 2011 publication 2011-05-19 G02200 http://dx.doi.org/10.7265/N5KK98PH NSIDC User Services National Snow and Ice Data Center none 1 303 492-6199 National Snow and Ice Data Center Boulder CO 80309-0449 USA nsidc@nsidc.org http://nsidc.org custodian NSIDC NOAA User Services NSIDC National Oceanic and Atmospheric Administration none 1 303 492-6199 National Snow and Ice Data Center Boulder CO 80309-0449 USA nsidc@nsidc.org http://nsidc.org/noaa/ custodian 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)). Scientific Research 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. 2011. SEDNA: Sea ice Experiment - Dynamic Nature of the Arctic. [indicate subset used]. Fairbanks, Alaska USA: International Arctic Research Center, UAF. http://dx.doi.org/10.7265/N5KK98PH. complete Jennifer Hutchings University of Alaska, Fairbanks none P.O. Box 757340 Fairbanks AK 99775-7340 USA jenny@iarc.uaf.edu principalInvestigator Cathleen Geiger College of Earth, Ocean, and Environment, University of Delaware none cgeiger@udel.edu principalInvestigator Jacqueline Richter-Menge Cold Regions Research and Engineering Laboratory none 72 Lyme Rd. Hanover NH 03755-1290 USA Jaqueline.A.Richter-Menge@erdc.usaec.army.mil principalInvestigator Andrew Roberts Naval Post-Graduate School none Monteray CA USA principalInvestigator Pablo Clemente-Colón National/Naval Ice Center none 1 301 394-3100 4251 Suitland Road Washington, D.C. 20395 USA Pablo.Clemente-Colon@natice.noaa.gov principalInvestigator Bruce Elder Cold Regions Research and Engineering Laboratory none 72 Lyme Rd. Hanover NH 03755-1290 USA Bruce.C.Elder@erdc.usace.army.mil pointOfContact Martin Doble University of Cambridge, Cambridge, UK none principalInvestigator Rene Forsberg Danish National Space Center none Copenhagen Denmark principalInvestigator Katharine Giles University College London none pointOfContact Christian Haas University of Alberta none Edmonton Canada principalInvestigator Dan Carlson University of Alaska, Fairbanks none pointOfContact Nick Hughes Norwegian Met Office none Tromso Norway principalInvestigator Stefan Hendricks Alfred Wegener Institute for Polar and Marine Research none Bremerhaven Germany pointOfContact Rob Chadwell University of Alaska, Fairbanks none pointOfContact Skip Echert NorthWest Research Association none Seattle Washington USA pointOfContact Robert Harris PolarTREC none Hartford VT USA pointOfContact Chandra Khambhamettu University of Delaware none principalInvestigator Ron Kwok none Jet Propulsion Laboratory (JPL) Pasadena CA USA principalInvestigator Seymour Laxon University College London none pointOfContact Ben Holt Jet Propulsion Laboratory (JPL) none Pasedena CA USA pointOfContact Torge Martin IFM-GEOMAR none Kiel Germany pointOfContact Don Perovich Cold Regions Research and Engineering Laboratory none 1 603 646-4255 72 Lyme Rd. Hanover NH 03755-1290 USA Donald.K.Perovich@erdc.usace.army.mil pointOfContact Matthew Pruis NorthWest Research Associates none Seattle Washington USA principalInvestigator Ignatius G. Rigor none 1 206 685-2571 University of Washington Seattle WA 98105 USA igr@apl.washington.edu principalInvestigator Eggert Jon Magnusson none Gavia Iceland pointOfContact Alice Orlich University of Alaska, Fairbanks none pointOfContact Henriette Skourup Danish National Space Center none Copenhagen Denmark pointOfContact Mani Thomas University of Delaware none pointOfContact Adrian Turner University College London none pointOfContact P. Wadhams University of Cambridge none pw11@cam.ac.uk principalInvestigator D. Wilkinson none pointOfContact Richard Yeo none Gavia Iceland pointOfContact H. Jay Zwally none 1 301 614-5643 Laboratory for Hydrospheric Processes Greenbelt MD 20771 USA H.J.Zwally@nasa.gov pointOfContact asNeeded dataset series attribute Bruce Elder Cold Regions Research and Engineering Laboratory none 72 Lyme Rd. Hanover NH 03755-1290 USA Bruce.C.Elder@erdc.usace.army.mil http://nsidc.org pointOfContact Ocean > Arctic Ocean > Beaufort Sea > Perrenial-seasonal ice boundary place NASA / GCMD Location Keywords 2008-02-05 revision EARTH SCIENCE > Cryosphere > Sea Ice > Sea Ice Mass Balance EARTH SCIENCE > Cryosphere > Sea Ice > Ice Deformation EARTH SCIENCE > Cryosphere > Snow/Ice > Ice Depth/Thickness > Distribution EARTH SCIENCE > Cryosphere > Snow/Ice > Ice Motion EARTH SCIENCE > Oceans > Sea Ice > Sea Ice Dynamics EARTH SCIENCE > Oceans > Sea Ice > Ice Deformation discipline NASA / GCMD Science Keywords 2008-02-05 revision theme None 2008-01-24 revision 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 theme otherRestrictions otherRestrictions Access Constraints : none 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. eng; usa UTF8 climatologyMeteorologyAtmosphere -170 -130 70 76 20070201 20070630 ASCII Text Online (HTTP) NetCDF Online (HTTP) NSIDC User Services National Snow and Ice Data Center 1 303 492-6199 National Snow and Ice Data Center Boulder CO 80309-0449 USA nsidc@nsidc.org http://nsidc.org custodian NSIDC NOAA User Services NSIDC National Oceanic and Atmospheric Administration 1 303 492-6199 National Snow and Ice Data Center Boulder CO 80309-0449 USA nsidc@nsidc.org http://nsidc.org/noaa/ custodian onLine Online (HTTP) ADCP > Acoustic Doppler Current Profiler sensor CTD > Conductivity, Temperature, Depth sensor GPR > Ground Penetrating Radar sensor GPS > Global Positioning System sensor ICE STRESS SENSORS sensor LIDAR > Light Detection and Ranging sensor SAR > Synthetic Aperture Radar sensor THERMISTORS sensor UPWARD LOOKING SONAR sensor VISUAL OBSERVATIONS sensor AIRCRAFT satellite N/A AUVS > Autonomous Underwater Vehicles satellite N/A BUOYS satellite N/A HELICOPTER satellite N/A METEOROLOGICAL STATIONS satellite N/A SATELLITES satellite N/A SUBMARINE satellite N/A