BORA - UiB

Bergen Open Research Archive

Browsing Research centres and projects by Subject "Oceanography"

Bergen Open Research Archive

Browsing Research centres and projects by Subject "Oceanography"

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  • Bjørgo, Einar; Johannessen, Ola M.; Miles, Martin W. (Journal article; Peer reviewed, American Geophysical Union, 1997-02-15)
    The most consistent means of investigating the global sea ice cover is by satellite passive microwave sensors, as these are independent of illumination and cloud cover. The Nimbus 7 Scanning Multichannel Microwave Radiometer ...
  • Bouzinac, Catherine; Font, Jordi; Johannessen, Johnny A. (Journal article; Peer reviewed, American Geophysical Union, 2003-03-01)
    In the western Mediterranean Sea, sea level variations are the result of seasonal steric effect, atmospheric forcing and mesoscale circulation activity, particularly in the Alboran and Algerian basins, as well as water ...
  • Johannessen, Ola M.; Miles, Martin W. (Journal article; Peer reviewed, Blackwell Scientific Publications, 2000)
  • Sandven, Stein; Johannessen, Ola M.; Miles, Martin W.; Pettersson, Lasse H.; Kloster, Kjell (Journal article; Peer reviewed, American Geophysical Union, 1999-07-15)
    Sea ice features and processes in the Barents Sea were studied during the Seasonal Ice Zone Experiment 1992 (SIZEX92), a dedicated ERS 1 satellite synthetic aperture radar (SAR) field campaign carried out in March 1992. ...
  • Johannessen, Johnny A.; Shuchman, Robert A.; Digranes, G.; Lyzenga, D. R.; Wackerman, C.; Johannessen, Ola M.; Vachon, P. W. (Journal article; Peer reviewed, American Geophysical Union, 1996-03-15)
    ERS 1 C band synthetic aperture radar (SAR) data were collected during the Norwegian Continental Shelf Experiment (NORCSEX) both in November 1991 during the ERS 1 commissioning phase and at different seasons in 1992 and ...
  • Korsbakken, E.; Johannessen, Johnny A.; Johannessen, Ola M. (Journal article; Peer reviewed, American Geophysical Union, 1998-04-15)
    A unique series of European Remote Sensing Satellite (ERS) 1 and 2 C band synthetic aperture radar (SAR) images was obtained off the southern coast of Norway during the Coast Watch’95 experiment in September 1995. In this ...
  • Espedal, Heidi A.; Johannessen, Ola M.; Johannessen, Johnny A.; Dano, E.; Lyzenga, D. R.; Knulst, Johan (Journal article; Peer reviewed, American Geophysical Union, 1998-10-15)
    Ocean mesoscale phenomena such as eddies and current convergence zones can often be seen in synthetic aperture radar (SAR) images due to characteristic patterns caused by natural film induced damping of the waves. Such ...
  • Johannessen, Ola M.; Lygre, Kjetil; Eldevik, Tor (Chapter, American Geophysical Union, 2005)
    In the Boreas Basin in the northern Greenland Sea, convection has been observed to be localized as narrow structures - chimneys - in which the water masses may be homogeneous from the surface through great depths. An ...
  • Johannessen, Ola M.; Sandven, Stein; Kloster, Kjell; Pettersson, Lasse H.; Melentyev, V. V.; Bobylev, Leonid P.; Kondratyev, K. Ya. (Journal article; Peer reviewed, Taylor & Francis, 1997-08-01)
  • Johannessen, Ola M.; Sandven, Stein; Kloster, Kjell; Pettersson, Lasse H.; Melentyev, V. V.; Bobylev, Leonid P.; Kondratyev, K. Ya. (Journal article, Taylor & Francis, 1997-08-01)
  • Orre, Steinar; Gao, Yongqi; Drange, Helge; Deleersnijder, Eric (Peer reviewed; Journal article, Science Press, 2008-09-27)
    A simple approach for estimating the equivalent diffusion for diagnosing tracer transport is proposed. Two different expressions are derived; one is based directly on an analytical solution of the two-dimensional ...
  • Marzeion, Ben; Drange, Helge (Journal article, Elsevier Science, 2006)
    A three-box model of the Atlantic Ocean is used to examine the influence different parameterisations of the diapycnal mixing may have on the large scale dynamics of the ocean circulation. Special emphasis is given to the ...
  • Johannessen, Johnny A.; Sandven, Stein; Durand, Dominique (Chapter, Kluwer Academic Publishers, 2002)
    Satellite oceanography began with the Gemini XII flight in November 1966. From a Hasselblad camera mounted in the pilot’s window large internal waves in the eastern tropical Atlantic were photographed via sunglitter for ...
  • Vachon, P. W.; Johannessen, Ola M.; Johannessen, Johnny A. (Journal article; Peer reviewed, American Geophysical Union, 1994-11-15)
    An ERS 1 synthetic aperture radar (SAR) image of the island Hopen shows a distinct 7.6-km wavelength wave phenomenon near the island. This wave phenomenon is interpreted as the surface imprint on open water of atmospheric ...
  • Doney, S. C.; Lindsay, K.; Caldeira, Ken; Campin, J. M.; Drange, Helge; Dutay, J. C.; Follows, M.; Gao, Yongqi; Gnanadesikan, A.; Gruber, N.; Ishida, A.; Joos, Fortunat; Madec, G.; Maier-Reimer, E.; Marshall, J. C.; Matear, R. J.; Monfray, P.; Mouchet, A.; Najjar, R.; Orr, J. C.; Plattner, G. K.; Sarmiento, J. L.; Schlitzer, R.; Slater, R.; Totterdell, I. J.; Weirig, M. F.; Yamanaka, Y.; Yool, A. (Journal article; Peer reviewed, American Geophysical Union, 2004-09-15)
    A suite of standard ocean hydrographic and circulation metrics are applied to the equilibrium physical solutions from 13 global carbon models participating in phase 2 of the Ocean Carbon-cycle Model Intercomparison Project ...
  • Backeberg, Bjørn C.; Bertino, Laurent; Johannessen, Johnny A. (Journal article, Copernicus Publications on behalf of the European Geosciences Union, 2009-06-02)
    A 4th order advection scheme is applied in a nested eddy-resolving Hybrid Coordinate Ocean Model (HYCOM) of the greater Agulhas Current system for the purpose of testing advanced numerics as a means for improving the model ...
  • Matsumoto, K.; Sarmiento, J. L.; Key, R. M.; Aumont, O.; Bullister, J. L.; Caldeira, Ken; Campin, J. M.; Doney, S. C.; Drange, Helge; Dutay, J. C.; Follows, M.; Gao, Yongqi; Gnanadesikan, A.; Gruber, N.; Ishida, A.; Joos, Fortunat; Lindsay, K.; Maier-Reimer, E.; Marshall, J. C.; Matear, R. J.; Monfray, P.; Mouchet, A.; Najjar, R.; Plattner, G. K.; Schlitzer, R.; Slater, R.; Swathi, P. S.; Totterdell, I. J.; Weirig, M. F.; Yamanaka, Y.; Yool, A.; Orr, J. C. (Journal article; Peer reviewed, American Geophysical Union, 2004-04-02)
    New radiocarbon and chlorofluorocarbon-11 data from the World Ocean Circulation Experiment are used to assess a suite of 19 ocean carbon cycle models. We use the distributions and inventories of these tracers as quantitative ...
  • Kattsov, Vladimir M.; Källén, Erland; Cattle, Howard P.; Christensen, Jens; Drange, Helge; Hanssen-Bauer, Inger; Jóhannesen, Tómas; Karol, Igor; Räisänen, Jount; Svensson, Gunilla; Vavulin, Stanislav (Chapter, ACIA, 2005-09)
  • Backeberg, Bjørn C.; Johannessen, Johnny A.; Bertino, Laurent; Reason, Chris J.C. (Journal article, The Institute of Marine Engineering, Science & Technology (IMarEST), 2008-02)
    For the purpose of developing an operational oceanography system for the greater Agulhas Current regime, a high resolution Hybrid Coordinate Ocean Model (HYCOM) has been set in a nested configuration. The intense and complex ...
  • Shuchman, Robert A.; Josberger, Edward G.; Russel, Catherine A.; Fischer, Kenneth W.; Johannessen, Ola M.; Johannessen, Johnny A.; Gloersen, Per (Journal article; Peer reviewed, American Geophysical Union, 1998-06-15)
    The “Odden” is a large sea ice feature that forms in the east Greenland Sea that may protrude eastward to 5 °E from the main sea ice pack (at about 8 °W) between 73° and 77 °N. It generally forms at the beginning of the ...

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