Blar i Geophysical Institute på emneord "VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Oseanografi: 452"
Viser treff 1-20 av 33
-
The Atlantic Water flow along the Vøring Plateau: Detecting frontal structures in oceanic station time series
(Journal article, 2007-01-13)The topographic steering of the baroclinic western branch of the Norwegian Atlantic Current (NwAC) determines the extent of Atlantic Water and location of the Arctic Front in the Nordic Seas. In this paper the geographical ... -
Benguela Niños: Observations and Modelling
(Master thesis, 2004)A numerical ocean model for the South Atlantic was used to study the 1995 Benguela Niño in order to learn about the underlying forcing mechanisms of the phenomenon. By comparing observations and model output, it was found ... -
Circulation and exchange of water masses on the Faroe Shelf and the impact on the Shelf ecosystem
(Doctoral thesis, 2009-02-11)The findings in this work can be listed as follows: FSW: Based on CTD data, the FSW is found to be relatively vertically homogeneous through-out the year inside the 100 m depth contour. Temperature measurements at coastal ... -
Drag coefficient reduction at very high wind speeds
(Peer reviewed; Journal article, 2006-03-31)The correct representation of the 10-m drag coefficient for momentum (K10) at extreme wind speeds is very important for modeling the development of tropical depressions and may also be relevant to the understanding of other ... -
The East Greenland Current: Structure and Variability
(Master thesis, 2004) -
Effect of critical latitude and seasonal stratification on tidal current profiles along Ronne Ice Front, Antarctica
(Journal article, 2006-03-30)The ice front region of Ronne Ice Shelf lies near the critical latitude of the semidiurnal M2 tide, the principal tidal constituent in the southern Weddell Sea. Here the Coriolis frequency almost equals the M2 tidal ... -
Intermediate water from the Greenland Sea in the Faroe Bank Channel : spreading of released sulphur hexafluoride
(Journal article, 2005-02)The Faroe Bank Channel is the deepest passage for dense water leaving the Nordic Seas into the North Atlantic. The contribution to this part of the Greenland-Scotland Overflow by intermediate water from the Greenland Sea ... -
An investigation of the Faroe Shelf Front
(Master thesis, 2003)The water mass on the Faroe Shelf is distinct from the off-shelf water surrounding the shelf. This difference of water masses is reflected in the temperature and salinity distributions. The on-shelf water is colder and ... -
Magnitude and Origin of the Anthropogenic CO2 Increase and the 13C Suess Effect in the Nordic Seas since 1981
(Peer reviewed; Journal article, 2006-09-29)This study evaluates the anthropogenic changes of CO2 (∆Cant) and δ13C (∆δ13Cant) in the Nordic seas, the northern limb of the Atlantic Meridional Overturning Circulation, that took place between 1981 and 2002/03. The ... -
Mesoscale variability study of the Agulhas Current from satellite radar altimetry and a high resolution model
(Master thesis, 2006-06)Towards understanding the dynamics and eddy evolving processes in the greater Agulhas Current system, a Hybrid Coordinate Ocean Model (HYCOM) system has been set up to simulation the ocean circulation around Southern Africa ... -
Mg/Ca ratios in the planktonic foraminifer Neogloboquadrina pachyderma (sinistral) in the northern North Atlantic/Nordic Seas
(Peer reviewed; Journal article, 2006-06-15)In core top samples in the Nordic Seas, Mg/Ca ratios of N. pachyderma (sin.) are generally consistent with previous high-latitude calibration data but do not reflect the modern calcification temperature gradient from 2ºC ... -
Modeling ocean processes below Fimbulisen, Antarctica
(Peer reviewed; Journal article, 2006-01-18)Model simulations of circulation and melting beneath Fimbulisen, Antarctica, obtained using an isopycnic coordinate ocean model, are presented. Model results compare well with available observations of currents and hydrography ... -
Modeling the dynamics and drift of icebergs in the Barents Sea
(Doctoral thesis, 2010-10-22) -
Multiple timescales of stochastically forced North Atlantic Ocean variability: A model study
(Peer reviewed; Journal article, 2015-09)The Atlantic meridional overturning circulation (AMOC) and the subpolar gyre (SPG) are important elements in mechanisms for multidecadal variability in models in the North Atlantic Ocean. In this study, a 2000-year long ... -
Numerical sensitivity studies on the variability of climate-relevant processes in the Barents Sea
(Peer reviewed; Journal article, 2005-06-03)The Barents Sea is a key region in the North Atlantic/Arctic Ocean climate system because of the intense ocean-atmosphere heat exchange and the formation of sea ice. The latter process is connected with salt input, so-called ... -
Observation and Simulation of Ice Tongues and Vortex Pairs in the Marginal Ice Zone
(Geophysical Monograph 85, Chapter, 1994)Recognizes the major advancements of the past decade in understanding the interactions among the polar oceans and global atmospheric and oceanic systems. This volume addresses the following topics: Polar Ocean Circulation ... -
Ocean abyssal carbon experiments at 0.7 and 4 km depth
(Journal article, 2005)Observations from small-scale (20 to 90 litres) CO2 experiments conducted off the coast of California at 684 m depth and at 3942 m depth are discussed. In both experiments, when the seawater velocity was sufficiently strong, ... -
Ocean circulation and climate at the Eemian and last glacial inception
(Doctoral thesis, 2010-09-24)Combining a hierarchy of climate models of varying complexity with marine proxy data, we show that the North Atlantic surface circulation played an important role for the climate of the Eemian and the last glacial inception. ... -
On the potential of 230Th, 231Pa, and 10Be for marine rain ratio determinations: A modeling study
(Peer reviewed; Journal article, 2006-06-16)The global distributions of the radionuclides 230Th, 231Pa, and 10Be are simulated with a biogeochemical ocean general circulation model. Sensitivity experiments for changes in the composition of the particle composition ...