Browsing Geophysical Institute by Journals "Energy Procedia"
Now showing items 1-19 of 19
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Analysis of a low-level coastal jet off the western coast of Norway
(Peer reviewed; Journal article, 2014)Offshore wind installations depend strongly on an improved knowledge of the atmospheric and ocean conditions affecting the marine atmospheric boundary layer (MABL). In particular the better understanding of atmospheric ... -
Characterization of the SUMO Turbulence Measurement System for Wind Turbine Wake Assessment
(Peer reviewed; Journal article, 2014)The remotely piloted aircraft system (RPAS) SUMO (Small Unmanned Meteorological Observer) has been equipped with a miniaturized 5-hole probe sensor system for measurement of the 3-dimensional flow vector with a temporal ... -
A Comparison of LiDAR and Radiosonde Wind Measurements
(Peer reviewed; Journal article, 2014)Doppler LiDAR measurements are already well established in the wind energy research and their accuracy has been tested against met mast data up to 100 m above ground. However, the new generation of scanning LiDAR have a ... -
A Diagnostic Diagram to Understand Atmosphere-ocean Dynamics in the Southern North Sea at High Wind Spe
(Peer reviewed; Journal article, 2014)Long time series of offshore meteorological measurements in the lower marine atmospheric boundary layer show dynamical regimes and variability that are forced partly by interaction with the underlying sea surface and partly ... -
Experimental characterization of the marine atmospheric boundary layer in the Havsul area, Norway
(Peer reviewed; Journal article, 2013)Offshore wind energy applications depend strongly on an improved knowledge of the physical processes taking place in marine atmospheric boundary layer (MABL). In particular the better understanding of the complex interactions ... -
First results of turbulence measurements in a wind park with the Small Unmanned Meteorological Observer SUMO
(Peer reviewed; Journal article, 2012-01)The Small Unmanned Meteorological Observer (SUMO), equipped with a miniaturized 5-hole probe for turbulent flow measurements with 100 Hz temporal resolution, has for the first time been operated in and around a wind farm. ... -
Modelling the effect of ocean waves on the atmospheric and ocean boundary layers
(Peer reviewed; Journal article, 2012)Ocean waves, in addition to generating direct forces on fixed and floating offshore wind generator structures, also have significant indirect effects via their influence on the atmospheric and oceanic boundary layers above ... -
A numerical study of transport and spreading of gases from natural analogues of gas-seepage through the seafloor
(Peer reviewed; Journal article, 2009-02)Natural leakages of CO2 are reported in the literature at mid ocean ridges and CH4 seepages in hydrocarbon rich ares. These could potentially serve as natural analogues of leakages from CO2 storages. In this study we have ... -
Offshore wind turbine wake characteristics using scanning doppler lidar
(Peer reviewed; Journal article, 2017-10)Within an offshore wind park, wind flow characteristics are quite complex and govern both the energy production and the structural wind turbine response. An experimental study focussed on assessing the spatial variability ... -
Perturbation in the atmospheric acoustic field from a large offshore wind farm in the presence of surface gravity waves
(Peer reviewed; Journal article, 2013)In this study a quantitatively reliable approximation of atmospheric sound wave propagation is given in the presence of a large wind farm. Rough sea surface is used as lower boundary condition at the sea surface, and an ... -
Preliminary results of the NORCOWE Direct Covariance Flux System for Ship based measurements
(Peer reviewed; Journal article, 2013)To cover the increased demand of renewable energy the development of offshore wind turbines that can be placed in deep water has started. Model results from Sullivan et al. [2] indicate that the ocean has the ability to ... -
Proof of concept for wind turbine wake investigations with the RPAS SUMO
(Peer reviewed; Journal article, 2016-09)The Small Unmanned Meteorological Observer (SUMO) has been operated in the vicinity of five research turbines of the Energy Research Centre of the Netherlands (ECN) at the test site Wieringermeer. The intention of the ... -
PVTx Properties of a Two-phase CO2 Jet from Ruptured Pipeline
(Peer reviewed; Journal article, 2013)Span and Wagner equation of state (SW EOS) have been used to investigate changes in the thermodynamic properties of CO2 during a depressurization process from a pipeline into marine environment. The process is assumed to ... -
Sea surface gravity wave - wind interaction in the marine atmospheric boundary layer
(Peer reviewed; Journal article, 2014)In this study, we investigate the turbulence structure over idealized wind-generated surface gravity waves with varying wave age using a wave-modified one-dimensional boundary layer model. To prescribe the shape of the ... -
Sensor movement correction for direct turbulence measurements in the marine atmospheric boundary layer
(Peer reviewed; Journal article, 2012)Understanding of the turbulent exchange processes between the ocean and the overlying atmosphere is essential for wind shear and turbulence structure of the Marine Atmospheric Boundary Layer (MABL). This is highly relevant ... -
Topographic effects on CO2, diffusion and dissolution from the seafloor
(Peer reviewed; Journal article, 2009-02)At 3000 meters depth liquid CO2 is denser than seawater and hence will be stored as a “lake” on the deep ocean floor, which is expected to gradually be dissolved in seawater. Ocean currents and turbulence will influence ... -
Turbulence Measurements in Shallow Water from a Subsurface Moored Moving Platform
(Peer reviewed; Journal article, 2013)Preliminary results are presented from a moored, autonomous instrument measuring the upper ocean turbulent dissipation rate together with the surface gravity wave field. Observations are made in the area approximately 30 ... -
Upper Ocean Response to Large Wind Farm Effect in the Presence of Surface Gravity Waves
(Peer reviewed; Journal article, 2012)The upper ocean response in the presence of a wind farm is studied numerically, taking into account the effect of surface gravity waves. The farm geometry is a simplified rigid rectangle with characteristic size of L aligned ... -
Wave–induced characteristics of atmospheric turbulence flux measurements
(Peer reviewed; Journal article, 2013)In this paper, we present the air–sea flux of momentum obtained with the eddy correlation method applied to data measured from a moored discus buoy deployed approximately 600 m off a research Air Sea Interaction Tower at ...