Blar i Faculty of Mathematics and Natural Sciences på emneord "Oceanography"
Viser treff 1-20 av 36
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Annual cycles of sea level and sea surface temperature in the western Mediterranean Sea
(Peer reviewed; Journal article, 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 ... -
Arctic sea ice and climate change - will the sea ice disappear in this century?
(Peer reviewed; Journal article, 2000) -
Bottom melting of Arctic Sea Ice in the Nansen Basin due to Atlantic Water influence
(Master thesis, 2016-05-24)The hydrographic situation for a region north of Svalbard is investigated using observations from the Norwegian Young Sea Ice Cruise (N-ICE2015). Observations from January to June 2015 are compared to historical observations ... -
Calving rates at tidewater glaciers vary strongly with ocean temperature
(Peer reviewed; Journal article, 2015-10-09)Rates of ice mass loss at the calving margins of tidewater glaciers (frontal ablation rates) are a key uncertainty in sea level rise projections. Measurements are difficult because mass lost is replaced by ice flow at ... -
Climatic mean and interannual variation of northern Barents Sea water mass distribution and circulation. A combined study of ROMS, current and hydrography observations
(Master thesis, 2008-06-02)Evaluating current measurements, hydrography observations and model (ROMS) results of the northern Barents Sea, water mass distribution and circulation is investigated. Water mass exchange with the Arctic Ocean is linked ... -
Coastal ocean fronts and eddies imaged with ERS 1 synthetic aperture radar
(Peer reviewed; Journal article, 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 ... -
COASTWATCH´95: ERS 1/2 SAR detection of natural film on the ocean surface
(Peer reviewed; Journal article, 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 ... -
Convective chimneys and plumes in the Northern Greenland Sea
(Geophysical Monograph Series;30, Chapter, 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 ... -
Diagnosing ocean tracer transport from Sellafield and Dounreay by equivalent diffusion and age
(Peer reviewed; Journal article, 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 ... -
Early Pliocene onset of modern Nordic Seas circulation related to ocean gateway changes
(Peer reviewed; Journal article, 2015-10-28)The globally warm climate of the early Pliocene gradually cooled from 4 million years ago, synchronous with decreasing atmospheric CO2 concentrations. In contrast, palaeoceanographic records indicate that the Nordic Seas ... -
Egg buoyancy variability in local populations of Atlantic cod (Gadus morhua)
(Peer reviewed; Journal article, 2012)Previous studies have found strong evidences for Atlantic cod (Gadus morhua) egg retention in fjords, which are caused by the combination of vertical salinity structure, estuarine circulation, and egg specific gravity, ... -
Evaluating two numerical advection schemes in HYCOM for eddy-resolving modelling of the Agulhas Current
(Ocean Science, Journal article, 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 ... -
The greater Agulhas Current system: an integrated study of its mesoscale variability
(Journal of Operational Oceanography, Journal article, 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 ... -
High northern latitude surface air temperature: comparison of existing data and creation of a new gridded data set 1900–2000
(Peer reviewed; Journal article, 2008-03)Detection, attribution and understanding of temperature changes in the high northern latitudes depend on constraining uncertainties and resolving apparent discrepancies in observational data sets. We quantitatively compare ... -
High-frequency internal wave observations in the marginal ice zone
(Journal of Geophysical Research: Oceans;92(C7), Journal article, 1987-06-30) -
Hydrothermal vent fields and chemosynthetic biota on the world's deepest seafloor spreading centre
(Journal article, 2012-01-10)The Mid-Cayman spreading centre is an ultraslow-spreading ridge in the Caribbean Sea. Its extreme depth and geographic isolation from other mid-ocean ridges offer insights into the effects of pressure on hydrothermal ... -
Large mesopelagic fishes biomass and trophic efficiency in the open ocean
(Peer reviewed; Journal article, 2014-02-07)With a current estimate of ~1,000 million tons, mesopelagic fishes likely dominate the world total fishes biomass. However, recent acoustic observations show that mesopelagic fishes biomass could be significantly larger ... -
Large-Scale Atmospheric Circulation Variability and its Impacts on the Nordic Seas Ocean Climate - a Review. In: The Nordic Seas: An Integrated Perspective
(Geophysical Monograph Series;158, Chapter, 2005)The large-scale atmospheric circulation and its impacts on the Nordic Seas ocean climate are reviewed. The dominant factors for the atmospheric variability are the Icelandic low and the Azores high, determining the strength ... -
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 ... -
On effect of wave breaking on short wind waves
(Peer reviewed; Journal article, 2004-10)The paper presents an attempt to estimate short wave generation by wave breaking. A breaking wave crest disturbs the surface and generates sub-surface turbulence. The locally disturbed area further disperses and feeds short ...