Blar i Geophysical Institute på tittel
Viser treff 537-556 av 1074
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Mechanisms for decadal scale variability in a simulated Atlantic Meridional Overturning Circulation
(Peer reviewed; Journal article, 2011-06-25)Variability in the Atlantic Meridional Overturning Circulation (AMOC) has been analysed using a 600-year pre-industrial control simulation with the Bergen Climate Model. The typical AMOC variability has amplitudes of 1 ... -
Mechanisms of decadal North Atlantic climate variability and implications for the recent cold anomaly
(Journal article; Peer reviewed, 2021)Decadal sea surface temperature (SST) fluctuations in the North Atlantic Ocean influence climate over adjacent land areas and are a major source of skill in climate predictions. However, the mechanisms underlying decadal ... -
Mechanisms of Ocean Heat Anomalies in the Norwegian Sea
(Peer reviewed; Journal article, 2019-04)Ocean heat content in the Norwegian Sea exhibits pronounced variability on interannual to decadal time scales. These ocean heat anomalies are known to influence Arctic sea ice extent, marine ecosystems, and continental ... -
Mechanisms of regional winter sea-ice variability in a warming arctic
(Journal article; Peer reviewed, 2021)The Arctic winter sea ice cover is in retreat overlaid by large internal variability. Changes to sea ice are driven by exchange of heat, momentum, and freshwater within and between the ocean and the atmosphere. Using a ... -
The mechanisms that determine the response of the Northern Hemisphere’s stationary waves to North American Ice Sheets
(Peer reviewed; Journal article, 2019-07-01)Stationary waves describe the persistent meanders in the west–east flow of the extratropical atmosphere. Here, changes in stationary waves caused by ice sheets over North America are examined and the underlying mechanisms ... -
Mechanisms underlying recent Arctic atlantification
(Journal article; Peer reviewed, 2020-06-20)Recent warming and reduced sea ice concentrations in the Atlantic sector of the Arctic Ocean are the main signatures of ongoing Arctic “Atlantification.” The mechanisms driving the warming trends are nevertheless still ... -
Melting of Northern Greenland during the last interglaciation
(Peer reviewed; Journal article, 2012-11-05)Using simulated climate data from the comprehensive coupled climate model IPSL CM4, we simulate the Greenland ice sheet (GrIS) during the Eemian interglaciation with the three-dimensional ice sheet model SICOPOLIS. The ... -
Meridional and vertical variations of the water vapour isotopic composition in the marine boundary layer over the Atlantic and Southern Ocean
(Journal article; Peer reviewed, 2020)Stable water isotopologues (SWIs) are useful tracers of moist diabatic processes in the atmospheric water cycle. They provide a framework to analyse moist processes on a range of timescales from large-scale moisture transport ... -
Meridional Ocean Carbon Transport
(Journal article; Peer reviewed, 2020)The ocean's ability to take up and store CO2 is a key factor for understanding past and future climate variability. However, qualitative and quantitative understanding of surface-to-interior pathways, and how the ocean ... -
Mesoscale Eddies Are Oases for Higher Trophic Marine Life
(Peer reviewed; Journal article, 2012-01-17)Mesoscale eddies stimulate biological production in the ocean, but knowledge of energy transfers to higher trophic levels within eddies remains fragmented and not quantified. Increasing the knowledge base is constrained ... -
The mesoscale eddy field in the Lofoten Basin from high-resolution Lagrangian simulations
(Journal article; Peer reviewed, 2021)Warm Atlantic-origin waters are modified in the Lofoten Basin in the Nordic Seas on their way toward the Arctic. An energetic eddy field redistributes these waters in the basin. Retained for extended periods, the warm ... -
Mesoscale variability of the Antarctic slope front and the slope front current
(Master thesis, 2022-06-01)The Weddell Sea is essential for the global climate due to the production of the dense shelf water that contributes to the Weddell Sea Bottom Water (WSBW), feeding the lower limb of the global thermohaline circulation (Orsi ... -
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 ... -
Meteorological conditions and cloud effects on surface radiation balance near Helheim glacier and Jakobshavn isbræ (Greenland)using ground-based observations.
(Journal article; Peer reviewed, 2021)The surface radiation budget is an essential component of the total energy exchange between the atmosphere and the Earth’s surface. Measurements of radiative fluxes near/on ice surfaces are sparse in the polar regions, ... -
Meteorological observations in tall masts for the mapping of atmospheric flow in Norwegian fjords
(Journal article; Peer reviewed, 2020)Since 2014, 11 tall meteorological masts have been erected in coastal areas of mid-Norway in order to provide observational data for a detailed description of the wind conditions at several potential fjord crossing sites. ... -
Metrics to assess the mitigation of global warming by carbon capture and storage in the ocean and in geological reservoirs
(Peer reviewed; Journal article, 2004-09-18)Different metrics to assess mitigation of global warming by carbon capture and storage are discussed. The climatic impact of capturing 30% of the anthropogenic carbon emission and its storage in the ocean or in geological ... -
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 ... -
Microstructure Measurements from an Underwater Glider in the Turbulent Faroe Bank Channel Overflow
(Peer reviewed; Journal article, 2014-05)Measurements of ocean microstructure are made in the turbulent Faroe Bank Channel overflow using a turbulence instrument attached to an underwater glider. Dissipation rate of turbulent kinetic energy « is measured using ... -
Microstructure measurements using a glider in the Faroe Bank Channel Overflow
(Master thesis, 2013-05-30)The application of turbulence instrumentation on underwater gliders is addressed, and two methods for glider-inferred dissipation rates of turbulent kinetic energy are evaluated against a ship-based vertical microstructure ... -
Miljøpåvirkninger fra produksjon og bruk av hydrogen i maritim transport
(Master thesis, 2020-07-01)I denne studien er hydrogen foreslått som et alternativt drivstoff for maritim transport. Miljøpåvirkninger fra å erstatte konvensjonelle fossile brensler i sjøtransport med hydrogen vurderes ved å utføre en livssyklusvurdering ...