Blar i Geophysical Institute på tittel
Viser treff 1002-1021 av 1287
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Seasonal predictions initialised by assimilating sea surface temperature observations with the EnKF
(Peer reviewed; Journal article, 2019-07-23)This study demonstrates that assimilating SST with an advanced data assimilation method yields prediction skill level with the best state-of-the-art systems. We employ the Norwegian Climate Prediction Model (NorCPM)—a ... -
Seasonal resonance of diurnal coastal trapped waves in the southern Weddell Sea, Antarctica
(Peer reviewed; Journal article, 2017-01-30)The summer enhancement of diurnal tidal currents at the shelf break in the southern Weddell Sea is studied using velocity measurements from 29 moorings during the period 1968 to 2014. Kinetic energy associated with diurnal ... -
Seasonal to Decadal Temperature Variations in the Faroe-Shetland Inflow Waters
(AGU Geophysical Monograph Series;158, Chapter, 2005)A 53 years hind-cast simulation with a regional version of the Nansen Center version of the Miami Isopycnic Coordinate Ocean Model (MICOM) has been conducted to explore the nature of the observed seasonal to inter-annual ... -
Seasonal variation in marine C:N:P stoichiometry: can the composition of seston explain stable Redfield ratios?
(Peer reviewed; Journal article, 2011)Seston is suspended particulate organic matter, comprising a mixture of autotrophic, heterotrophic and detrital material. Despite variable proportions of these components, marine seston often exhibits relatively small ... -
Seasonal-to-decadal predictions with the ensemble kalman filter and the Norwegian earth System Model: A twin experiment
(Peer reviewed; Journal article, 2014-03-10)Here, we firstly demonstrate the potential of an advanced flow dependent data assimilation method for performing seasonal-to-decadal prediction and secondly, reassess the use of sea surface temperature (SST) for initialisation ... -
Seasonality of coastal upwelling trends in the Mauritania-Senegalese region under RCP8.5 climate change scenario
(Journal article; Peer reviewed, 2023)The Mauritania-Senegalese upwelling region (MSUR), the southernmost region of the Canary current upwelling system, is well-known for its coastal productivity and the key role it plays in enriching the oligotrophic open ... -
Seasonality of Surface Chlorophyll in the Red Sea
(Master thesis, 2012-10-01)Although the understanding of the oceanography of the Red Sea has been developed over the last few decades, but we still have a little knowledge about the influences of the physical factors on the phytoplankton activity. ... -
Self-nested large-eddy simulations in PALM model system v21.10 for offshore wind prediction under different atmospheric stability conditions
(Journal article; Peer reviewed, 2023)Large-eddy simulation (LES) resolves large-scale turbulence directly and parametrizes small-scale turbulence. Resolving micro-scale turbulence, e.g., in wind turbine wakes, requires both a sufficiently small grid spacing ... -
Sensitivity analysis in key parameters related to wind power production
(Master thesis, 2021-06-01) -
Sensitivity analysis of the dynamic response of floating wind turbines
(Master thesis, 2018-08-23)Development of offshore wind turbines shows a clear shift from the fixed-bottom turbines to the floating turbines. The reason for such tendency is due to the fact that moving towards the deep ocean will substantially limit ... -
Sensitivity of Air-Sea Heat Exchange in Cold-Air Outbreaks to Model Resolution and Sea-Ice Distribution
(Journal article; Peer reviewed, 2021)Modeling air-sea interactions during cold air outbreaks poses a major challenge because of the vast range of scales and physical processes involved. Using the Polar WRF model, we investigate the sensitivity of downstream ... -
The sensitivity of marine-terminating glaciers to model parameters and geometry
(Master thesis, 2016-06-01)Greenland outlet glaciers are among the largest contributors to global sea level rise. With high velocities and calving rates, they discharge large amounts of glacial ice into the ocean. During the last two decades, the ... -
Sensitivity of remote sensing – derived phytoplankton productivity to mixed layer depth: Lessons from the carbon-based productivity model
(Peer reviewed; Journal article, 2009-10-01)Mixed layer depth (MLD) has long been recognized as having an important influence on underwater light budget and, thus, net primary productivity (NPP) of phytoplankton. The depth- and wavelength-integrated carbon-based ... -
Sensitivity of simulated wintertime Arctic atmosphere to vertical resolution in the ARPEGE/IFS model
(Journal article, 2008)The current state of the art general circulation models, including several of those used by the IPCC, show considerable disagreement in simulating present day high latitude climate. This is of major concern and reduces the ... -
Sensitivity of the dynamic response of a multimegawatt floating wind turbine to the choice of turbulence model
(Journal article; Peer reviewed, 2022)In the design of offshore wind turbines, it is important to make a realistic estimate of the wind load. This is particularly important for floating wind turbines, having natural frequencies in a frequency range where the ... -
Sensitivity of the marine biospheric Si cycle for biogeochemical parameter variations
(Peer reviewed; Journal article, 2003-09-06)A systematic quantitative assessment of the marine silicon cycle is presented, based on a prognostic coupled water column-sediment global biogeochemical ocean general circulation model (HAMOCC). The resulting tracer ... -
The sensitivity of the present day Atlantic meriodinal overturning circulation to freshwater forcing
(Peer reviewed; Journal article, 2003-09-09)Mounting evidence indicates that the Atlantic Meridional Overturning Circulation (AMOC) was strongly reduced during cold climate episodes in the past, possible due to freshwater influx from glacial melting. It is also ... -
Sensor movement correction for direct turbulence measurements in the marine atmospheric boundary layer
(Peer reviewed; Journal article, 2012)Understanding of the turbulent exchange processes between the ocean and the overlying atmosphere is essential for wind shear and turbulence structure of the Marine Atmospheric Boundary Layer (MABL). This is highly relevant ... -
Severe mesoscale weather events over the Nordic Seas: Numerical modelling and sensitivity experiments
(Doctoral thesis, 2011-06-22)The Nordic seas region, due to its unique geographical and climatological conditions, experiences a number of adverse mesoscale weather events that have proven fatal for human activities in the area. Most of these weather ... -
SFY: A free-drifting wave buoy for measuring surf waves
(Master thesis, 2023-06-01)Breaking waves have been studied for over a century. Still, there is an insufficient understanding of wave breaking due to limited in situ data. The high variability and the energetic environment in the surf zone makes it ...