Citation
Nina Kirchner, Markus Friding (2021) High-resolution bathymetry data from expedition OATRC, Arctic Ocean, 2012. Dataset version 1. Bolin Centre Database. https://doi.org/10.17043/oden-oatrc-2012-bathymetry-1
References
Jakobsson M, Mayer LA, Bringensparr C, Castro CF, Mohammad R, Johnson P, Ketter T, Accettella D, Amblas D, An L, Arndt JE, Canals M, Casamor JL, Chauché N, Coakley B, Danielson S, Demarte M, Dickson M-L, Dorschel B, Dowdeswell JA, Dreutter S, Fremand AC, Gallant D, Hall JK, Hehemann L, Hodnesdal H, Hong J, Ivaldi R, Kane E, Klaucke I, Krawczyk DW, Kristoffersen Y, Kuipers BR, Millan R, Masetti G, Morlighem M, Noormets R, Prescott MM, Rebesco M, Rignot E, Semiletov I, Tate AJ, Travaglini P, Velicogna I, Weatherall P, Weinrebe W, Willis JK, Wood M, Zarayskaya Y, Zhang T, Zimmermann M, Zinglersen KB, (2020) The International Bathymetric Chart of the Arctic Ocean Version 4.0. Scientific Data 7:176. https://doi.org/10.1038/s41597-020-0520-9
Data
Data description
The bathymetric data are provided as processed grids, divided into survey areas, with a grid cell size of 2 – 25 m. Note that depths are given in positive numbers. The grids are provided both in the UTM zone 29N projection (EPSG 32629) and in geographic coordinates (WGS 84, latitude and longitude). The horizontal datum is WGS 84 and the vertical datum is instantaneous sea level, implying that the vertical level has not been corrected for tides. For each projection, the bathymetric data grids are available in four formats: GeoTiff, netCDF, ASCII XYZ and ESRI Arc ASCII grid. Data are also illustrated as JPEG images.
Comments
The data were acquired in September 2012 from Swedish icebreaker (IB) Oden during the OATRC 2012 expedition. A Kongsberg EM122 1° × 1°, 12 kHz, multibeam echo-sounder was hull-mounted in IB Oden. Position, heading and attitude data were received from a Kongsberg-Seatex Seapath 320 navigation unit (GPS and GLONASS) with attached MRU5 motion sensor. The exact speed of sound at the multibeam transducers was provided by a Valeport Mini SVS/T sound speed and temperature sensor mounted in the sea-chest in Oden’s hull, close to the multibeam transducer arrays. This was interfaced with the multibeam system directly. In addition, sound speed profiles for the entire water column were provided by CTD (Conductivity, Temperature, Depth) stations as well as XBT (Expendable Bathy Thermograph) probes.
The data were collected in a mixture of sea-ice conditions, ranging from 5/10 to 8/10 coverage. Navigation was provided by a Seatex Seapath 320 without local augmentation as this is not available in the area. Sound speed correction was done regularly using data from a Seabird 911+ CTD (conductivity, temperature depth) or Valeport SVP (sound velocity profiler).
The OATRC 2012 expedition started and ended in Longyearbyen, Svalbard, and lasted from September 15 to September 25, 2012. It was a collaboration between the Norwegian University of Science and Technology (NTNU) and the Swedish Polar Research Secretariat. OATRC 2012 was associated with the Sustainable Arctic Marine and Coastal Technology (SAMCoT) centre, initiated by the Research Council of Norway and hosted by NTNU.
Contact information
Email address
[javascript protected email address]Phone number
+46-8-164719
Postal address
Martin Jakobsson
Department of Geological Sciences
Stockholm University
SE-106 91 Stockholm
Sweden
GCMD science keywords
Earth science > Oceans > Bathymetry/seafloor topography > Bathymetry
GCMD location
Ocean > Arctic Ocean
Status
Completed
Dataset language
English
Project
Oden Arctic Technology Research Cruise (OATRC) 2012 expedition
Publisher
Bolin Centre Database
Begin date
2012-09-15
End date
2012-09-25
Dataset version
1
DOI
10.17043/oden-oatrc-2012-bathymetry-1
Published
2021-11-04 15:13:40