Browsing Geophysical Institute by Author "Aarnes, Ole Johan"
Now showing items 1-10 of 10
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Climate change and safe design of ship structures
Bitner-Gregersen, Elzbieta M.; Vanem, Erik; Gramstad, Odin; Hørte, Torfinn; Aarnes, Ole Johan; Reistad, Magnar; Breivik, Øyvind; Magnusson, Anne Karin; Natvig, Bent (Peer reviewed; Journal article, 2018-02)The paper addresses projected changes of wave climate in the North Atlantic and their impact on the safe design of ships, with a particular focus given on associated uncertainties. The Fifth Assessment Report of the ... -
Extremes and Trends in Wave Climate. A regional and global study
Aarnes, Ole Johan (Doctoral thesis, 2015-01-16)Wind generated surface waves represent a critical factor for offshore constructions and coastal development, and are highly relevant in scientific questions related to climate and weather. The sea state can be described ... -
A high‐resolution hindcast of wind and waves for the North Sea, the Norwegian Sea, and the Barents Sea
Reistad, Magnar; Breivik, Øyvind; Haakenstad, Hilde; Aarnes, Ole Johan; Furevik, Birgitte Rugaard; Bidlot, Jean-Raymond (Peer reviewed; Journal article, 2011-05)A combined high-resolution atmospheric downscaling and wave hindcast based on the ERA-40 reanalysis covering the Norwegian Sea, the North Sea, and the Barents Sea is presented. The period covered is from September 1957 to ... -
The importance of wind forcing in fjord wave modelling
Christakos, Konstantinos; Furevik, Birgitte Rugaard; Aarnes, Ole Johan; Breivik, Øyvind; Tuomi, Laura; Byrkjedal, Øyvind (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. ... -
Marine Wind and Wave Height Trends at Different ERA-Interim Forecast Ranges
Aarnes, Ole Johan; Abdalla, Saleh; Bidlot, Jean-Raymond; Breivik, Øyvind (Peer reviewed; Journal article, 2015-01-15)Trends in marine wind speed and significant wave height are investigated using the global reanalysis ERA-Interim over the period 1979–2012, based on monthly-mean and monthly-maximum data. Besides the traditional reanalysis, ... -
NORA10EI: A revised regional atmosphere-wave hindcast for the North Sea, the Norwegian Sea and the Barents Sea
Haakenstad, Hilde; Breivik, Øyvind; Reistad, Magnar; Aarnes, Ole Johan (Peer reviewed; Journal article, 2020)NORA10EI, a new atmosphere and wave hindcast for the Norwegian Sea, the North Sea and the Barents Sea is presented. The hindcast uses ERA‐Interim as initial and boundary conditions and covers the period 1979–2017. The ... -
On Mixed Wind-Sea/Swell Conditions in the Open Ocean : Model and Radar-Observations
Aarnes, Ole Johan (Master thesis, 2005) -
Projected changes in significant wave height toward the end of the 21st century: Northeast Atlantic
Aarnes, Ole Johan; Reistad, Magnar; Breivik, Øyvind; Bitner-Gregersen, Elzbieta M.; Eide, Lars Ingolf; Gramstad, Odin; Magnusson, Anne Karin; Natvig, Bent; Vanem, Erik (Peer reviewed; Journal article, 2017-04)Wind field ensembles from six CMIP5 models force wave model time slices of the northeast Atlantic over the last three decades of the 20th and the 21st centuries. The future wave climate is investigated by considering the ... -
Wave Extremes in the Northeast Atlantic
Aarnes, Ole Johan; Breivik, Øyvind; Reistad, Magnar (Peer reviewed; Journal article, 2012-03)The objective of this study is to compute 100-yr return value estimates of significant wave height using a new hindcast developed by the Norwegian Meteorological Institute. This regional hindcast covers the northeast ... -
Wind and wave extremes over the world oceans from very large ensembles
Breivik, Øyvind; Aarnes, Ole Johan; Abdalla, Saleh; Bidlot, Jean-Raymond; Janssen, Peter A. E. M. (Peer reviewed; Journal article, 2014-07)Global return values of marine wind speed and significant wave height are estimated from very large aggregates of archived ensemble forecasts at +240 h lead time. Long lead time ensures that the forecasts represent independent ...