Blar i Geophysical Institute på tittel
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Impacts of Greenland Block Location on Clouds and Surface Energy Fluxes over the Greenland Ice Sheet
(Journal article; Peer reviewed, 2020)Clouds and blocking activity have been implicated as causes of increased Greenland Ice Sheet (GrIS) melt in the 21st century. Although Greenland blocks (i.e., long-lasting, mostly stationary anticyclones) generally reduce ... -
Impacts of the autumn Arctic sea ice on the intraseasonal reversal of the winter Siberian high
(Peer reviewed; Journal article, 2019-02)During 1979–2015, the intensity of the Siberian high (SH) in November and December–January (DJ) is frequently shown to have an out-of-phase relationship, which is accompanied by opposite surface air temperature and circulation ... -
Impacts of the extratropical North Pacific on boreal summer Arctic circulation
(Journal article; Peer reviewed, 2023)A distinct characteristic of the Arctic summer atmospheric circulation is the anomalous anticyclonic circulation centered over the Arctic Ocean associated with significant Arctic warming. Previous studies have related the ... -
Impacts of UV Irradiance and Medium-Energy Electron Precipitation on the North Atlantic Oscillation during the 11-Year Solar Cycle
(Journal article; Peer reviewed, 2021)Observational studies suggest that part of the North Atlantic Oscillation (NAO) variability may be attributed to the spectral ultra-violet (UV) irradiance variations associated to the 11-year solar cycle. The observed ... -
Impacts on carbon budgets of increased use og Norwegian forest resources for energy
(Master thesis, 2019-06-19)When forests are logged for heat and electricity production, emissions from burning of the biomass are not accounted for in national greenhouse gas reporting to the climate convention. This would have been correct if a ... -
Implementation of a Simple Actuator Disk for Large-Eddy Simulation in the Weather Research and Forecasting Model (WRF-SADLES v1.2) for wind turbine wake simulation
(Journal article; Peer reviewed, 2024)In this study, we present the development of a Simple Actuator Disk model for Large-Eddy Simulation (SADLES), implemented within the Weather Research and Forecasting (WRF) model, which is widely used in atmospheric research. ... -
Implementation of slope irradiance in Mesoscale Model version 5 and its effect on temperature and wind fields during the breakup of a temperature inversion
(Peer reviewed; Journal article, 2003-01-27)The atmospheric mesoscale model MM5 has been used at high horizontal resolution to simulate the breakup of a temperature inversion in complex topography. To improve the surface parameterizations during daytime, slope and ... -
Implementation of the sectional aerosol module SALSA2.0 into the PALM model system 6.0: model development and first evaluation
(Peer reviewed; Journal article, 2019-04-11)Urban pedestrian-level air quality is a result of an interplay between turbulent dispersion conditions, background concentrations, and heterogeneous local emissions of air pollutants and their transformation processes. ... -
Implementering av indikeringssystem på dieselmotor og tester av dieseloljer
(Master thesis, 2016-05-31)This report shows the implementation of indication systems and the setup of the lab for a single cylinder diesel engine located at Bergen Univercity College. Further on a study of alternative fuels was carried out, basing ... -
Importance of radiative transfer processes in urban climate models: A study based on the PALM 6.0 model system
(Journal article; Peer reviewed, 2022)Including radiative transfer processes within the urban canopy layer into microscale urban climate models (UCMs) is essential to obtain realistic model results. These processes include the interaction of buildings and ... -
The importance of wind forcing in fjord wave modelling
(Peer reviewed; Journal article, 2019-12-03)Accurate predictions of surface ocean waves in coastal areas are important for a number of marine activities. In complex coastlines with islands and fjords, the quality of wind forcing significantly affects the results. ... -
An Improved Estimate of the Coupled Arctic Energy Budget
(Peer reviewed; Journal article, 2019)This study combines state-of-the-art reanalyses such as the fifth-generation European Re-Analysis (ERA5) and the Ocean Reanalysis System 5 (ORAS5) with novel observational products to present an updated estimate of the ... -
Improved long-span bridge modeling using data-driven identification of vehicle-induced vibrations
(Journal article; Peer reviewed, 2020)The paper introduces a procedure to automatically identify key vehicle characteristics from vibrations data collected on a suspension bridge. The primary goal is to apply a model of the dynamic displacement response of a ... -
An Improved Surface Boundary Condition for Large-Eddy Simulations Based on Monin–Obukhov Similarity Theory: Evaluation and Consequences for Grid Convergence in Neutral and Stable Conditions
(Peer reviewed; Journal article, 2020)Monin–Obukhov similarity theory is used in large-eddy simulation (LES) models as a surface boundary condition to predict the surface shear stress and scalar fluxes based on the gradients between the surface and the first ... -
Improvement of aquaculture management practice by integration of hydrodynamic modelling
(Journal article; Peer reviewed, 2021)Aquaculture has grown to become an important export industry in Norway. The Norwegian Food Safety Authorithy (NFSA) is responsible for the management of the production zones designated to aquaculture. Fish diseases and ... -
Improving Radar-Based Precipitation Nowcasts with Machine Learning Using an Approach Based on Random Forest
(Journal article; Peer reviewed, 2020)A binary classification model is trained by random forest using data from 41 stations in Norway to predict the precipitation in a given hour. The predictors consist of results from radar nowcasts and numerical weather ... -
Improving weather and climate predictions by training of supermodels
(Peer reviewed; Journal article, 2019-11-28)Recent studies demonstrate that weather and climate predictions potentially improve by dynamically combining different models into a so-called “supermodel”. Here, we focus on the weighted supermodel – the supermodel's time ... -
In situ coastal observations of wave homogeneity and coherence
(Journal article; Peer reviewed, 2022)A better understanding of wave homogeneity, i.e. the spatial variations of the wave characteristics, and wave coherence in coastal areas and fjords is essential for the design and analysis of sea-crossing infrastructures, ... -
In-air one-point calibration of oxygen optodes in underway systems
(Journal article; Peer reviewed, 2021)Ships of opportunity are a frequently used platform in surface ocean carbon observations and estimating the annual ocean carbon sink. For understanding the drivers behind changes in the ocean carbon system, oxygen measurements ... -
Inconsistent Wind Speed Trends in Current Twentieth Century Reanalyses
(Peer reviewed; Journal article, 2019)Reanalysis data underpin much research in atmospheric and related sciences. While most reanalysis only cover the last couple of decades, National Oceanic and Atmospheric Administration (20CR) and European Centre for ...