Browsing Institutt for geofag by Title
Now showing items 1418-1437 of 2342
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(Doctoral thesis / Doktoravhandling, 2011)
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)Abstract Shortwave radiative feedbacks from Southern Ocean clouds are a major source of uncertainty in climate projections. Much of this uncertainty arises from changes in cloud scattering properties and lifetimes that ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2021)The mechanisms which amplify orbitally driven changes in insolation and drive the glacial cycles of the past 2.6 million years, the Pleistocene, are poorly understood. Previous studies indicate that cloud phase feedbacks ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)Abstract. We investigate data from an acoustic Doppler current profiler deployed in a constricted ocean channel showing a tidally dominated flow with intermittent velocity extrema during outflow from the constriction but ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)Abstract. The role of clouds in the surface radiation budget is particularly complex in the rapidly changing Arctic. However, despite their importance, long-term observations of Arctic clouds are relatively sparse. Here, ...
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(Research report / Forskningsrapport, 1994)
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(Research report / Forskningsrapport, 1998)Ninety observation series of solar irradiance and angular distributions of sky radiance at different sun angles and wavelengths from ultraviolet to red are presented in tabular form. The observed distributions of spectral ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)An experimental study of long interfacial gravity waves was conducted in a closed wave tank containing two layers of viscous immiscible fluids. The study focuses on the development in time of the mean particle drift that ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)This study investigates the dissipation rates and flow conditions at the Drøbak Sill in the Oslofjord. The area was transected 13 times with a free-falling microstructure shear probe during 4 days in June 2011. At the same ...
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(Master thesis / Masteroppgave, 2006)There have been many opinions on the definition of solifluction since the expression was first used by J. G. Andersson in 1906. The original definition was “slow flowing from higher to lower ground of masses of waste ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)Recent severe European droughts raise the vital question: are we already experiencing measurable changes in drought likelihood that agree with climate change projections? The plethora of drought definitions compounds this ...
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(Doctoral thesis / Doktoravhandling, 2018)In the last couple of years many Earth observation satellites with optical instruments have been set in space. These satellites generate an enormous amount of data and give us a image of different landforms on Earth. The ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)Abstract. Lateral changes in the group velocity of waves propagating in oceanic or coastal waters cause a deflection in their propagation path. Such refractive effects can be computed given knowledge of the ambient current ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)Antarctic sea ice is a critical component of the climate system and a vital habitat for Southern Ocean ecosystems. Understanding the underlying physical processes and improving Antarctic sea ice prediction is of broad ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)At present, anthropogenic halogens and oceanic emissions of very short-lived substances (VSLSs) both contribute to the observed stratospheric ozone depletion. Emissions of the long-lived anthropogenic halogens have been ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)Abstract Water resources sustainability in High Mountain Asia (HMA) surrounding the Tibetan Plateau (TP)—known as Asia’s water tower—has triggered widespread concerns because HMA protects millions of people against water ...
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Oceanic response to changes in the WAIS and astronomical forcing during the MIS31 superinterglacial (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)Marine Isotope Stage 31 (MIS31, between 1085 and 1055 ka) was characterized by higher extratropical air temperatures and a substantial recession of polar glaciers compared to today. Paleoreconstructions and model simulations ...
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(Doctoral thesis / Doktoravhandling, 2024)Clouds are important elements in the atmosphere and the whole climate system as they transport water and impact incoming and outgoing radiation. They may consist of liquid water, ice or a mixture of both. Among other factors ...
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(Doctoral thesis / Doktoravhandling, 2015)This dissertation investigates the physical structure of the crust and upper mantle in southwestern Scandinavia using different seismological and non-seismologic geophysical methods: 1. The S-wave velocity structure of ...
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Olivine Grain Size Distributions in Faults and Shear Zones: Evidence for Nonsteady State Deformation (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)The grain size distribution of deformed rocks may provide valuable information about their deformation history and the associated mechanisms. Here we present a unique set of olivine grain size distributions from ultramafic ...