Now showing items 1-10 of 13

    • Analysis of merged SMMR-SSMI time series of Arctic and Antarctic sea ice parameters 1978-1995 

      Bjørgo, Einar; Johannessen, Ola M.; Miles, Martin W. (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 ...
      Journal articlePeer reviewed
    • Annual cycles of sea level and sea surface temperature in the western Mediterranean Sea 

      Bouzinac, Catherine; Font, Jordi; Johannessen, Johnny A. (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 ...
      Journal articlePeer reviewed
    • Coastal wind field retrievals from ERS synthetic aperture radar images 

      Korsbakken, E.; Johannessen, Johnny A.; Johannessen, Ola M. (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 ...
      Journal articlePeer reviewed
    • COASTWATCH´95: ERS 1/2 SAR detection of natural film on the ocean surface 

      Espedal, Heidi A.; Johannessen, Ola M.; Johannessen, Johnny A.; Dano, E.; Lyzenga, D. R.; Knulst, Johan (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 ...
      Journal articlePeer reviewed
    • Cover ERS-1/2 SAR monitoring of dangerous ice phenomena along the western part of Northern Sea Route 

      Johannessen, Ola M.; Sandven, Stein; Kloster, Kjell; Pettersson, Lasse H.; Melentyev, V. V.; Bobylev, Leonid P.; Kondratyev, K. Ya. (Taylor & Francis, 1997-08-01)
      Journal articlePeer reviewed
    • Cover ERS-1/2 SAR monitoring of dangerous ice phenomena along the western part of Northern Sea Route 

      Johannessen, Ola M.; Sandven, Stein; Kloster, Kjell; Pettersson, Lasse H.; Melentyev, V. V.; Bobylev, Leonid P.; Kondratyev, K. Ya. (Taylor & Francis, 1997-08-01)
      Journal article
    • An ERS 1 synthetic aperture radar image of atmospheric lee waves 

      Vachon, P. W.; Johannessen, Ola M.; Johannessen, Johnny A. (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 ...
      Journal articlePeer reviewed
    • Microwave Study programs of Air-Ice-Ocean interactive processes in the Seasonal Ice Zone of the Greenland and Barents Seas 

      Johannessen, Ola M.; Campbell, William J.; Shuchman, Robert A.; Sandven, Stein; Gloersen, Per; Johannessen, Johnny A.; Josberger, Edward G.; Haugan, Peter Mosby (American Geophysical Union, 1992)
      Describes the use of satellite ice data into a working technology for the satellite data sets of the recent past and immediate future. Chapters cover basic observations, modeling, geophysical interpretation, and using data ...
      Chapter
    • Multisensor approach to automated classification of sea ice image data 

      Bogdanov, Andrey V.; Alexandrov, Vitaly Y.; Sandven, Stein; Johannessen, Ola M.; Bobylev, Leonid P. (IEEE Geoscience and Remote Sensing Society, 2005-07)
      A multisensor data fusion algorithm based on a multilayer neural network is presented for sea ice classification in the winter period. The algorithm uses European Remote Sensing (ERS), RADARSAT synthetic aperture radar ...
      Journal article
    • Satellite detection of natural films on the ocean surface 

      Espedal, Heidi A.; Johannessen, Ola M.; Knulst, Johan (American Geophysical Union, 1996-11-01)
      Natural films on the ocean surface influence air-sea fluxes of momentum, heat, and gas. It is therefore essential to be able to map the geographical extent and variability of such films to determine the resulting impact ...
      Journal article