Now showing items 331-350 of 618

    • Near-inertial mixing in the central Arctic Ocean 

      Fer, Ilker (American Meteorological Society, 2014-08)
      Observations were made in April 2007 of horizontal currents, hydrography, and shear microstructure in the upper 500 m from a drifting ice camp in the central Arctic Ocean. An approximately 4-day-long time series, collected ...
      Journal article
    • Nemo-Nordic 1.0: A NEMO-based ocean model for the Baltic and North seas - Research and operational applications 

      Hordoir, Robinson; Axell, Lars; Höglund, Anders; Dieterich, Christian; Fransner, Filippa; Gröger, Matthias; Liu, Ye; Pemberton, Per; Schimanke, Semjon; Andersson, Helen; Ljungemyr, Patrik; Nygren, Petter; Falahat, Saeed; Nord, Adam; Jönsson, Anette; Lake, Iréne; Döös, Kristofer; Hieronymus, Magnus; Dietze, Heiner; Löptien, Ulrike; Kuznetsov, Ivan; Westerlund, Antti; Tuomi, Laura; Haapala, Jari (European Geosciences Union, 2019-01-21)
      We present Nemo-Nordic, a Baltic and North Sea model based on the NEMO ocean engine. Surrounded by highly industrialized countries, the Baltic and North seas and their assets associated with shipping, fishing and tourism ...
      Journal article
    • New approaches to investigate the influence of orographic and dynamic blocking on large-scale atmospheric flow 

      Spensberger, Clemens (The University of Bergen, 2015-01-15)
      Orographic and dynamic blocks have a profound influence on both weather and climate. The persistence of dynamic blocks can, for example, lead to the build-up of extreme temperature anomalies or droughts. In addition, ...
      Doctoral thesis
    • A new global interior ocean mapped climatology: the 1° ×  1° GLODAP version 2 

      Lauvset, Siv Kari; Key, Robert M.; Olsen, Are; van Heuven, Steven; Velo, Antón; Lin, Xiaohua; Schirnick, Carsten; Kozyr, Alex; Tanhua, Toste; Hoppema, Mario; Jutterström, Sara; Steinfeldt, Reiner; Jeansson, Emil; Ishii, Masao; Pérez, Fiz F.; Suzuki, Toru; Watelet, Sylvain (Copernicus Publications, 2016-08-15)
      We present a mapped climatology (GLODAPv2.2016b) of ocean biogeochemical variables based on the new GLODAP version 2 data product (Olsen et al., 2016; Key et al., 2015), which covers all ocean basins over the years 1972 ...
      Journal article
    • A new interpretative framework for below-cloud effects on stable water isotopes in vapour and rain 

      Graf, Pascal; Wernli, Heini; Pfahl, Stephan; Sodemann, Harald (Copernicus Publications, 2019-01-22)
      Raindrops interact with water vapour in ambient air while sedimenting from the cloud base to the ground. They constantly exchange water molecules with the environment and, in sub-saturated air, they evaporate partially or ...
      Journal article
    • New layer thickness parameterization of diffusive convection in the ocean 

      Zhou, Sheng-Qi; Lu, Yuan-Zheng; Song, Xue-Long; Fer, Ilker (Elsevier, 2016-03)
      In the present study, a new parameterization is proposed to describe the convecting layer thickness in diffusive convection. By using in situ observational data of diffusive convection in the lakes and oceans, a wide range ...
      Journal article
    • A New Look at Deformation as a Diagnostic for Large-Scale Flow 

      Spensberger, Clemens; Spengler, Thomas (American Meteorological Society, 2014-11)
      Deformation plays a key role in atmospheric dynamics because it provides a dynamical measure of the interaction between different scales, such as in frontogenesis. A climatology of deformation constructed from Interim ECMWF ...
      Journal article
    • A new roughness length parameterization accounting for wind-wave (mis)alignment 

      Porchetta, Sara; Temel, Orkun; Munoz-Esparza, Domingo; Reuder, Joachim; Monbaliu, Jaak; Van Beeck, Jeroen; van Lipzig, Nicole (Copernicus Publications, 2019-05-20)
      Two-way feedback occurs between offshore wind and waves. However, the influence of the waves on the wind profile remains understudied, in particular the momentum transfer between the sea surface and the atmosphere. Previous ...
      Journal article
    • A new roughness length parameterization accounting for wind-wave (mis)alignment 

      Porchetta, Sara; Temel, Orkun; Munoz-Esparza, Domingo; Reuder, Joachim; Monbaliu, Jaak; Van Beeck, Jeroen; van Lipzig, Nicole (Copernicus Publications, 2019-05-20)
      Two-way feedback occurs between offshore wind and waves. However, the influence of the waves on the wind profile remains understudied, in particular the momentum transfer between the sea surface and the atmosphere. Previous ...
      Journal article
    • North Atlantic 20th century multidecadal variability in coupled climate models: sea surface temperature and ocean overturning circulation 

      Medhaug, Iselin; Furevik, Tore (The University of Bergen, 2011-06-06)
      Output from a total of 24 state-of-the-art Atmosphere-Ocean General Circulation Models is analyzed. The models were integrated with observed forcing for the period 1850–2000 as part of the Intergovernmental Panel on ...
      Peer reviewedJournal article
    • North Atlantic multi-decadal variability - mechanisms and predictability 

      Keenlyside, Noel; Ba, Jin; Mecking, Jennifer V.; Omrani, Nour-Eddine; Latif, Mojib; Zhang, Rong; Msadek, Rym (World Scientific Publishing, 2015-10)
      The North Atlantic Ocean undergoes pronounced basin-wide, multi-decadal variations. The corresponding fluctuations in sea surface temperature (SST) have become known as the Atlantic Multi-decadal Oscillation (AMO) or ...
      Chapter
    • North Atlantic multidecadal variability in coupled climate models - Mechanisms and responses 

      Medhaug, Iselin (The University of Bergen, 2011-05-06)
      Global atmosphere-ocean general circulation models have been used to investigate mechanisms controlling the North Atlantic low-frequency variability, with the focus on the Atlantic Meridional Overturning Circulation, the ...
      Doctoral thesis
    • North Atlantic ocean circulation and decadal sea level change during the Altimetry era 

      Chafik, Leon Martin; Nilsen, Jan Even Øie; Dangendorf, Sönke; Reverdin, Gilles; Frederikse, Thomas (Springer Nature, 2019-01-31)
      Regional sea-level rise is characterized by decadal acceleration and deceleration periods that typically stem from oceanic climate variability. Here, we investigate decadal sea-level trends during the altimetry era and pin ...
      Journal article
    • The North Atlantic Oscillation and greenhouse-gas forcing 

      Kuzmina, Svetlana I.; Bengtsson, Lennart; Johannessen, Ola M.; Drange, Helge; Bobylev, Leonid P.; Miles, Martin W. (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 ...
      Journal articlePeer reviewed
    • North Atlantic storm track changes during the Last Glacial Maximum recorded by Alpine speleothems 

      Luetscher, Marc; Boch, Ronny; Sodemann, Harald; Spötl, Christoph; Cheng, Hai; Edwards, Roger Lawrence; Frisia, Silvia; Hof, Florian; Müller, Wolfgang A. (Nature Publishing Group, 2015-02-27)
      The European Alps are an effective barrier for meridional moisture transport and are thus uniquely placed to record shifts in the North Atlantic storm track pattern associated with the waxing and waning of Late-Pleistocene ...
      Journal article
    • The North Atlantic waveguide and downstream impact experiment 

      Schäfler, Andreas; Craig, George; Wernli, Heini; Arbogast, Philippe; Doyle, James D.; McTaggart-Cowan, Ron; Methven, John; Rivière, Gwendal; Ament, Felix; Boettcher, Maxi; Bramberger, Martina; Cazenave, Quitterie; Cotton, Richard; Crewell, Susannne; Delanoë, Julien; Dörnbrack, Andreas; Ehrlich, André; Ewald, Florian; Fix, Andreas; Grams, Christian M.; Gray, Suzanne L.; Grob, Johannes; Groß, Silke; Hagen, Martin; Harvey, Ben; Hirsch, Lutz; Jacob, Marek; Kölling, Tobias; Konow, Heike; Lemmerz, Christian; Lux, Oliver; Magnusson, Linus; Mayer, Bernhard; Mech, Mario; Moore, Richard; Pelon, Jacques; Quinting, Julian; Rahm, Stephan; Rapp, Markus; Rautenhaus, Marc; Reitebuch, Oliver; Reynolds, Carlolyn A.; Sodemann, Harald; Spengler, Thomas; Vaughan, Geraint; Wendisch, Manfred; Wirth, Martin; Witschas, Benjamin; Wolf, Kevin; Zinner, Tobias (American Meteorological Society, 2018)
      The North Atlantic Waveguide and Downstream Impact Experiment (NAWDEX) explored the impact of diabatic processes on disturbances of the jet stream and their influence on downstream high-impact weather through the deployment ...
      Journal article
    • A North-South Contrast of Subsurface Salinity Anomalies in the Northwestern Pacific From 2002 to 2013 

      Yan, Youfang; Svendsen, Lea; Wang, Chunzai; Keenlyside, Noel; Xu, Dazhi (American Geophysical Union, 2019-03)
      This paper finds a north‐south contrast of subsurface salinity trend during 2002–2013 in the northwestern Pacific. Both Argo float data and long‐term repeat hydrographic measurements along the 137°E section show that ...
      Journal article
    • The Northeast Greenland shelf as a potential habitat for the Northeast Arctic cod 

      Strand, Kjersti Opstad; Sundby, Svein; Albretsen, Jon; Vikebø, Frode Bendiksen (Frontiers, 2017-09-26)
      Observations (1978–1991) of distributions of pelagic juvenile Northeast Arctic cod (Gadus morhua L.) show that up to 1/3 of the year class are dispersed off the continental shelf and into the deep Norwegian Sea while on ...
      Journal article
    • The northern Barents Sea during 1970–2016: From seabed to surface in the Arctic warming hotspot 

      Lind, Sigrid (The University of Bergen, 2018-05-09)
      Global warming is amplified in the cold and white Arctic, where strong positive feedback mechanisms associated with, e.g., changes in surface conditions and the vertical structure of the Arctic atmosphere enhance the ...
      Doctoral thesis
    • Northern Hemisphere storminess in the Norwegian Earth System Model (NorESM1-M) 

      Knudsen, Erlend Moster; Walsh, J. E. (Copernicus Publications, 2014-12-16)
      Metrics of storm activity in Northern Hemisphere high- and midlatitudes are evaluated from historical output and future projections by the Norwegian Earth System Model (NorESM1-M) coupled global climate model. The European ...
      Journal article