Browsing Institutt for geofag by Title
Now showing items 2928-2947 of 3035
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)Abstract Realistic initialization of the land surface is important to produce accurate NWP forecasts. Therefore, making use of available observations is essential when estimating the surface state. In this work, sequential ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)Models relating sediment supply to catchment properties are important in order to use the geological record to deduce landscape evolution and interplay between tectonics and climate. Water-discharge (Qw) is an important ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2008)A debris flow occurred on 8 May 2004, in Fjǽrland, Western Norway, due to a Glacial Lake Outburst Flood and a natural terminal moraine failure. The site was investigated in 2004 and 2005, using pre- and post-flow aerial ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)The radiative effect of anthropogenic aerosols is one of the largest uncertainties in Earth's energy budget over the industrial period. This uncertainty is in part due to sparse observations of aerosol concentrations in ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)This study presents a new model for calculating canopy shortwave radiation transmissivity from synthetic hemispheric images using only information contained within a canopy height model (CHM) – CanopyHeightModel2Radiation ...
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(Master thesis / Masteroppgave, 2021)
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)Varved lake sediments are one of the most important natural archives that allow annual resolution paleoclimate reconstructions. Conventional varve counting techniques use thin sections to manually identify lamina. However, ...
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(Master thesis / Masteroppgave, 2022)Temperature inversions prevents vertical mixing and thereby the distribution and dilution of pollutants, and can cause health hazardous concentrations of NO2 to accumulate. Policies have been implemented to reduce the ...
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(Master thesis / Masteroppgave, 2021)
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)Accurate mapping of greenhouse gas fluxes at the Earth’s surface is essential for the validation and calibration of climate models. In this study, we present a framework for surface flux estimation with drones. Our approach ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)Reservoir characterization specific to CO2 storage is challenging due to the dynamic interplay of physical and chemical trapping mechanisms. The mineralization potential for CO2 in a given siliciclastic sandstone aquifer ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)With dense SAR satellite data time series it is possible to map surface and subsurface glacier properties that vary in time. On Sentinel-1A and RADARSAT-2 backscatter time series images over mainland Norway and Svalbard, ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)Mixed-phase clouds play an important role in determining Arctic warming, but are parametrized in models and difficult to constrain with observations. We use two satellite-derived cloud phase metrics to investigate the ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)Abstract Sample sizes of observed climate extremes are typically too small to reliably constrain return period estimates when there is non-stationary behaviour. To increase the historical record 100-fold, we apply the ...
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(Master thesis / Masteroppgave, 2020)Accurate forecasts of very low temperatures in stable boundary layer (SBL) conditions in arctic areas remain a challenge in numerical weather prediction. These forecasts are of great importance both for local communities ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)In this paper, we comprehensively evaluated the utility of integrated long-term satellite-based precipitation and evapotranspiration products for drought monitoring over mainland China. The latest Integrated Multi-satelliteE ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)The traditional calibration objective of hydrological models is to optimize streamflow simulations. To identify the value of satellite soil moisture data in calibrating hydrological models, a new objective of optimizing ...
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(Master thesis / Masteroppgave, 2016)Norge har et terreng som fører til at landet er disponert for masseførende skred, blant annet sørpeskred. Sørpeskred er definert som en hurtig massebevegelse av vannmettet snø med et vanninnhold over 15%. Disse skredene ...
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(Master thesis / Masteroppgave, 2009)Denne studiens formål var å utvikle et syndrombasert signalsystem som gir et signal ved økt forekomst av en gitt infeksjon i en eller flere av landets kommuner. Infeksjonen og datasettet som ble benyttet var influensa, ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)A new Standard Pollen Diagram for southeastern Norway (c.f. Hafsten 1956) is compiled from 60 local pollen diagrams supplied with 229 14C-dates. Eight regional pollen assemblage zones describe the vegetation history for ...