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Bergen Open Research Archive

Browsing by Author "Drange, Helge"

Bergen Open Research Archive

Browsing by Author "Drange, Helge"

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  • Evensen, Geir; Drange, Helge (Chapter, Elsevier Science, 1997)
  • Furevik, Tore; Bentsen, Mats; Drange, Helge; Kindem, I. K. T.; Kvamstø, Nils Gunnar; Sorteberg, Asgeir (Journal article; Peer reviewed, Springer, 2003-07)
    A new coupled atmosphere–ocean–sea ice model has been developed, named the Bergen Climate Model (BCM). It consists of the atmospheric model ARPEGE/IFS, together with a global version of the ocean model MICOM including a ...
  • 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 ...
  • Gao, Yongqi; Drange, Helge (Journal article; Peer reviewed, Science Press, 2004-03-04)
    The Miami Isopycnic Coordinate Ocean Model (MICOM) is used to investigate the effect of diapycnal mixing on the oceanic uptake of CFC-11 and the ventilation of the surface waters in the Southern Ocean (south of 45°S). ...
  • Gao, Yongqi; Drange, Helge; Bentsen, Mats (Journal article; Peer reviewed, Blackwell Munksgaard, 2003)
    Simulated distributions of the chlorofluorocarbons CFC-11 and CFC-12 are used to examine the ventilation of the North Atlantic Ocean in a global version of the Miami Isopycnic Coordinate Ocean Model (MICOM). Three simulations ...
  • Sorteberg, Asgeir; Furevik, Tore; Drange, Helge; Kvamstø, Nils Gunnar (Journal article, American Geophysical Union, 2005-09-23)
    A five-member ensemble with a coupled atmospheresea ice-ocean model is used to examine the effects of natural variability on climate projections for the Arctic. The individual ensemble members are initialized from a 300 ...
  • Otterå, Odd Helge; Drange, Helge (Journal article; Peer reviewed, Blackwell, 2004)
    The sensitivity of the ocean circulation to changes in solar irradiance is examined using an isopycnic coordinate, global ocean general circulation model (OGCM) coupled to a thermodynamic/dynamic sea-ice model. In the ...
  • Otterå, Odd Helge; Drange, Helge (Journal article; Peer reviewed, Blackwell, 2004-03)
    The sensitivity of the ocean circulation to changes in solar irradiance is examined using an isopycnic coordinate, global ocean general circulation model (OGCM) coupled to a thermodynamic/dynamic sea-ice model. In the ...
  • 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 ...
  • 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)
  • Risebrobakken, Bjørg; Dokken, Trond M.; Otterå, Odd Helge; Jansen, Eystein; Gao, Yongqi; Drange, Helge (Journal article; Peer reviewed, Elsevier, 2007-01)
    About 115,000 years ago the last interglacial reached its terminus and nucleation of new ice sheet growth was initiated. Evidence from the northernmost Nordic Seas indicate that the inception of the last glacial was ...
  • Frankignoul, C.; Kestenare, E.; Botzet, M.; Carril, A. F.; Drange, Helge; Pardaens, A.; Terray, L.; Sutton, R. (Journal article; Peer reviewed, Springer-Verlag, 2004-04)
    The surface heat flux feedback is estimated in the Atlantic and the extra-tropical Indo-Pacific, using monthly heat flux and sea surface temperature anomaly data from control simulations with five global climate models, and ...
  • Jiang, Dabang; Wang, Huijun; Drange, Helge; Lang, Xianmei (Journal article; Peer reviewed, American Geophysical Union, 2003-02-06)
    With the boundary conditions appropriate for the Last Glacial Maximum (LGM), including ice sheets, sea surface temperatures, sea-ice distribution, atmospheric CO2 concentration, the Earth’s orbital parameters, topography, ...
  • Jiang, Dabang; Wang, Huijun; Ding, Zhongli; Lang, Xianmei; Drange, Helge (Journal article; Peer reviewed, American Geophysical Union, 2005-07-27)
    A new climate simulation for the middle Pliocene (ca. 3 Ma BP) is performed by a global grid-point atmospheric general circulation model developed at the Institute of Atmospheric Physics (IAP AGCM) with boundary conditions ...
  • Alendal, Guttorm; Drange, Helge; Haugan, Peter Mosby (Chapter, American Geophysical Union, 1994)
  • Kuzmina, Svetlana I.; Bengtsson, Lennart; Johannessen, Ola M.; Drange, Helge; Bobylev, Leonid P.; Miles, Martin W. (Journal article; Peer reviewed, American Geophysical Union, 2005-02-17)
    The results of 12 coupled climate models participating in the Coupled Model Intercomparison Project (CMIP2) are compared together with observational data in order to investigate: 1) How the current generation of climate ...
  • Johannessen, Johnny A.; Le Provost, Christian; Drange, Helge; Srokosz, Meric; Woodworth, Philip; Sclüssel, Peter; Le Grand, Pascal; Kerr, Yann; Wingham, Duncan; Rebhan, Helge (Chapter, GODAE Project Office and Bureau of Meteorology, Melbourne, 2001-12)
    During the first decade of the 21st century Earth observation from satellites will be faced with two major demands: provision of continuity missions and launch of new exploratory missions. This paper addresses European ...
  • Drange, Helge; Alendal, Guttorm; Johannessen, Ola M. (Journal article; Peer reviewed, American Geophysical Union, 2001-07-01)
    The natural ocean uptake of the greenhouse gas CO2 can be accelerated by collecting and liquefying the gas from point sources, and by pumping it into the ocean at appropriate locations and at sufficient depths. Results ...

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