Browsing Geophysical Institute by Subject "VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Petroleumsgeologi og -geofysikk: 464"
Now showing items 1-8 of 8
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The impact of mean state errors on equatorial Atlantic interannual variability in a climate model
(Peer reviewed; Journal article, 2015-02-23)Observations show that the Equatorial Atlantic Zonal Mode (ZM) obeys similar physics to the El Niño Southern Oscillation (ENSO): positive Bjerknes and delayed negative feedbacks. This implies the ZM may be predictable on ... -
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 ... -
On the Influence of Small-Scale Topography on Dense Plumes, with a Special Focus on the Filchner Overflow Plume
(Doctoral thesis, 2007-10-05) -
Open-source feature-tracking algorithm for sea ice drift retrieval from Sentinel-1 SAR imagery
(Peer reviewed; Journal article, 2016-04-26)A computationally efficient, open-source feature-tracking algorithm, called ORB, is adopted and tuned for sea ice drift retrieval from Sentinel-1 SAR (Synthetic Aperture Radar) images. The most suitable setting and parameter ... -
Open-source sea ice drift algorithm for Sentinel-1 SAR imagery using a combination of feature tracking and pattern matching
(Peer reviewed; Journal article, 2017-08-07)An open-source sea ice drift algorithm for Sentinel-1 SAR imagery is introduced based on the combination of feature tracking and pattern matching. Feature tracking produces an initial drift estimate and limits the search ... -
Operational algorithm for ice–water classification on dual-polarized RADARSAT-2 images
(Peer reviewed; Journal article, 2017-01-11)Synthetic Aperture Radar (SAR) data from RADARSAT-2 (RS2) in dual-polarization mode provide additional information for discriminating sea ice and open water compared to single-polarization data. We have developed an automatic ... -
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, ... -
Stratification and circulation in Sognefjorden
(Master thesis, 2006)The winter time stratification and circulation above sill depth in Sognefjorden is studied from CTD and ADCP data from February 2002-2004. The year to year variability in distribution of temperature and salinity has been ...