[{"name":"oden-lomrog-2007-bathymetry-1","title":"High-resolution bathymetry data from expedition LOMROG, Lomonosov Ridge, Arctic Ocean, 2007","summary":"Multibeam bathymetry from areas in the central Arctic Ocean over sections of the southern Lomonosov Ridge off Northern Greenland, the Morris Jesup Rise and Yermak Plateu.\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 Lomonosov Ridge off Greenland (LOMROG) 2007 expedition.\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 100\u2060\u200a\u2013\u200a\u2060200 m. The processing of the raw data was carried out using the Qimera software by QPS.","citations":"Jakobsson, M., Nilsson, J., O'Regan, M., Backman, J., L\u00f6wemark, L., Dowdeswell, J.A., Mayer, L., Polyak, L., Colleoni, F., Anderson, L., Bj\u00f6rk, G., Darby, D., Eriksson, B., Hanslik, D., Hell, B., Marcussen, C., Sell\u00e9n, E., Wallin, \u00c5., 2010. An Arctic Ocean ice shelf during MIS 6 constrained by new geophysical and geological data. Quaternary Science Reviews 29, 3505-3517. doi:10.1016\/j.quascirev.2010.03.015 \n\nBj\u00f6rk, G., Anderson, L.G., Jakobsson, M., Antony, D., Eriksson, B., Eriksson, P.B., Hell, B., Hjalmarsson, S., Janzen, T., Jutterstr\u00f6m, S., Linders, J., L\u00f6wemark, L., Marcussen, C., Olsson, A.K., Rudels, B., Sell\u00e9n, E., S\u00f8lvsten, M., 2010. Flow of Canadian basin deep water in the Western Eurasian Basin of the Arctic Ocean. Deep Sea Research Part I: Oceanographic Research Papers 57, 577-586. doi:10.1016\/j.dsr.2010.01.006\n\nDowdeswell, J.A., Jakobsson, M., Hogan, K.A., O'Regan, M., Antony, D., Backman, J., Darby, D., Eriksson, B., Evans, D.J.A., Hell, B., Janzen, T., L\u00f6wemark, L., Marcussen, C., Noormets, R., \u00d3 Cofaig, C., Polyak, L., Sell\u00e9n, E., S\u00f6lvsten, M., 2010. High-resolution geophysical observations from the Yermak Plateau and northern Svalbard margin: implications for ice-sheet grounding and deep-keeled icebergs. Quaternary Science Reviews 29, 3518-3531. doi:2075\/10.1016\/j.quascirev.2010.06.002\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 summer 2007 from Swedish icebreaker (IB) Oden during the LOMROG expedition. 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 LOMROG expedition started in Troms\u00f8, Norway, August 12 and ended in Longyearbyen, Svalbard, September 17, 2007. This was a Swedish\/Danish collaboration project with participating scientists also from Canada, Finland, and USA. With IB Oden supported by Russian nuclear icebreaker 50 Let Pobedy, LOMROG reached the southern most tip of the Lomonosov Ridge off Greenland. The LOMROG expedition constituted a project in the Arctic Palaeoclimate and its Extremes (APEX) research network programme endorsed by the International Arctic Science Committee (IASC) and the ICSU\/WMO Joint Committee for the International Polar Year 2007\/2008 (IPY).","category":"Marine","subcategory":"Bathymetry","keywords":"Geophysics; Arctic Ocean; Bathymetry; Seafloor morphology; Multibeam; LOMROG expedition; Icebreaker Oden","scientist":"Martin Jakobsson, Morten S\u00f8lvsten, Bj\u00f6rn Eriksson, Benjamin Hell, Leonid Polyak, Ludwig L\u00f6wemark","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":"Lomonosov Ridge off Greenland (LOMROG) 2007 expedition","publisher":"Bolin Centre Database","version":"1","constrains":"","access":""}]