[{"name":"oden-sat-2008-2009-bathymetry-1","title":"High-resolution bathymetry data from Sea acceptance test, Arctic Ocean, 2008 and 2009","summary":"Multibeam bathymetry from areas in Arctic Ocean waters off Northwest Svalbard.\r\n\r\nHigh-resolution bathymetry data are commonly used to study, for example, general seafloor geology, glacial morphology, bottom habitats, and bottom current activities. The data were collected from Swedish icebreaker Oden during the Sea Acceptance Test (SAT) 2008 and 2009 expeditions.\r\n\r\nThe bathymetry is acquired with a multibeam echo-sounder. The data are provided in the form of a compiled Digital Terrain Model with a grid cell size of 15\u2060\u200a\u2013\u200a\u206025 m. The processing of the raw data was carried out using the Qimera software by QPS.","citations":"Freire F, Gyllencreutz R, Jafri R, Jakobsson M (2014) Acoustic evidence of a submarine slide in the deepest part of the Arctic, the Molloy Hole. Geo-Marine Letters, 315\u200a\u2013\u200a\u2060325. doi:10.1007\/s00367-014-0371-5\n\nJakobsson 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, Chauch\u00e9 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. doi:10.1038\/s41597-020-0520-9","comments":"The data were acquired in 2008 and 2009 from Swedish icebreaker (IB) Oden during the SAT expeditions. A Kongsberg EM122 1\u00b0\u2060\u200a\u00d7\u200a1\u00b0\u2060, 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\u2019s 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.\r\n\r\n\r\nThe 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).\r\n\r\n\r\nThe first expedition between 23 and 28 of June, 2008, started and ended in Longyearbyen, Svalbard. The second expedition also started and ended in Longyearbyen, Svalbard, and lasted between July 13 and 14, 2009.","category":"Marine","subcategory":"Bathymetry","keywords":"Geophysics; Arctic Ocean; Bathymetry; Seafloor morphology; Multibeam; SAT 2008 and 2009 expeditions; Icebreaker Oden","scientist":"Martin Jakobsson, Bj\u00f6rn Eriksson, Larry Mayer, Rezwan Mohammad","firstname":"Martin","lastname":"Jakobsson","address":"Department of Geological Sciences; Stockholm University","postalcode":"SE-106 91","city":"Stockholm","province":"","country":"Sweden","parameters":"Earth science > Oceans > Bathymetry\/seafloor topography > Bathymetry","location":"Ocean > Arctic Ocean","progress":"Completed","language":"English","project":"Sea Acceptance Test (SAT) 2008 and 2009 expeditions","publisher":"Bolin Centre Database","version":"1","constrains":"","access":""}]