Browsing Geophysical Institute by Title
Now showing items 621-640 of 865
-
Rapid changes in the Subpolar Gyre based on an Ocean General Circulation Model
(Master thesis, 2013-06-03)Data from the ocean component of the Norwegian Earth System Model has been analyzed for the period 1960-2008. Most attention is given to the Subpolar Gyre, which strength and spatial extensiveness is understood to have ... -
Rapid water temperature variations at the northern shelf of the Yellow Sea
(Journal article; Peer reviewed, 2021-05-06)During summer, there is great spatial variability in bottom water temperature on the northern shelf of the Yellow Sea. This variability is associated with a thermal front along the shelf. Oscillatory currents from semidiurnal ... -
Recent and future changes of the Arctic sea-ice cover
(Peer reviewed; Journal article, 2008)The present and future state of the Arctic sea ice cover is explored using new observations and a coupled one dimensional air–sea–ice model. Updated satellite observations of Fram Strait ice-area export show an increase ... -
Recent drought and precipitation tendencies in Ethiopia
(Peer reviewed; Journal article, 2013-05)In 2011, drought in the Horn of Africa again made news headlines. This study aims to quantify the meteorological component of this and other drought episodes in Ethiopia since 1971. A monthly precipitation data set for 14 ... -
Recent wind driven high sea ice area export in the Fram Strait contributes to Arctic sea ice decline
(Peer reviewed; Journal article, 2011-10-14)Arctic sea ice area has been decreasing for the past two decades. Apart from melting, the southward drift through Fram Strait is the main ice loss mechanism. We present high resolution sea ice drift data across 79° N from ... -
Recommendation on use of wind lidars
(Research report, 2021) -
Reconciling Observation and Model Trends in North Atlantic Surface CO2
(Peer reviewed; Journal article, 2019)The North Atlantic Ocean is a region of intense uptake of atmospheric CO2. To assess how this CO2 sink has evolved over recent decades, various approaches have been used to estimate basin‐wide uptake from the irregularly ... -
Reconstructing the time history of the air-sea CO2 disequilibrium and its rate of change in the eastern subpolar North Atlantic, 1972–1989
(Peer reviewed; Journal article, 2006-02-18)This study determines the temporal changes of wintertime surface ocean partial pressure of CO2 (pCO2 SW) in the eastern subpolar North Atlantic (esNA) (50–64ºN; 32–10ºW) by using data of carbon-system parameters and ... -
Reconstruction of Glacier Mass Balance and Sensitivity Tests to Climate Change: A case study of Ålfotbreen and Nigardsbreen
(Master thesis, 2011-11-30)A physically-based one dimensional CROCUS snow model was applied to simulate the surface mass balances of Ålfotbreen (1964-2009) and Nigardsbreen (1962-2009) in southern Norway. The required hourly meteorological input ... -
The red-sky enigma over Svalbard in December 2002
(Peer reviewed; Journal article, 2005)On 6 December 2002, during winter darkness, an extraordinary event occurred in the sky, as viewed from Longyearbyen (78° N, 15° E), Svalbard, Norway. At 07:30 UT the southeast sky was surprisingly lit up in a deep red ... -
Regional atmospheric response to the Benguela Niñas
(Journal article; Peer reviewed, 2021)We investigate how the atmosphere is affected by the cold sea surface temperature (SST) anomalies of the Benguela Niñas using reanalysis data and a high-resolution atmospheric model. A composite analysis of reanalysis data ... -
Regional climate models' performance in representing precipitation and temperature over selected Mediterranean areas
(Peer reviewed; Journal article, 2013-12-12)This paper discusses the relative performance of several climate models in providing reliable forcing for hydrological modeling in six representative catchments in the Mediterranean region. We consider 14 Regional Climate ... -
Regional, seasonal, and predictable Arctic sea ice change
(Doctoral thesis, 2017-12-07)The loss of Arctic sea ice is one of the most prominent and best quantified indicators of ongoing global climate change. Satellite passive microwave observations since 1979 indicate significant negative sea ice extent ... -
Relating model bias and prediction skill in the equatorial Atlantic
(Journal article; Peer reviewed, 2021)We investigate the impact of large climatological biases in the tropical Atlantic on reanalysis and seasonal prediction performance using the Norwegian Climate Prediction Model (NorCPM) in a standard and an anomaly coupled ... -
Relation between the wind stress curl in the North Atlantic and the Atlantic inflow to the Nordic Seas
(Journal of Geophysical Research: Oceans, Journal article, 2008-06-27)In this study an isopycnic coordinate ocean model has been used to investigate the relationships between the North Atlantic wind stress curl (WSC) and the inflow of Atlantic water to the Nordic Seas. For the period 1995–2001, ... -
The relationship between the eddy-driven jet stream and northern European sea level variability
(Journal article; Peer reviewed, 2021)Wintertime sea level variability over the northern European continental shelf is largely wind-driven. Using daily gridded sea level anomaly from altimetry, we examine both the spatial and the temporal relationship between ... -
Resolving the controls of water vapour isotopes in the Atlantic sector
(Peer reviewed; Journal article, 2019-04-09)Stable water isotopes are employed as hydrological tracers to quantify the diverse implications of atmospheric moisture for climate. They are widely used as proxies for studying past climate changes, e.g., in isotope records ... -
Resolving the upper-ocean warm layer improves the simulation of the Madden-Julian oscillation
(Peer reviewed; Journal article, 2014-09)Here we show that coupling a high-resolution one-column ocean model to an atmospheric general circulation model dramatically improves simulation of the Madden–Julian oscillation (MJO) to have realistic strength, period, ... -
Response of Arctic Ocean stratification to changing river runoff in a column model
(Peer reviewed; Journal article, 2015-04-07)A one-dimensional model of the atmosphere-ice-ocean column is used to study the effects of changing river runoff to the Arctic Ocean. River runoff is the largest contributor of freshwater to the Arctic and is expected to ... -
Retention of Coastal Cod Eggs in a Fjord Caused by Interactions between Egg Buoyancy and Circulation Pattern
(Peer reviewed; Journal article, 2011-08-01)Norwegian coastal cod form a stationary population of Atlantic cod Gadus morhua consisting of several genetically separated subpopulations. A small-scale differentiation in marine populations with pelagic eggs and larvae ...