The North Sea Andrea storm and numerical simulations

Abstract. A coupling of a spectral wave model with a nonlinear phase-resolving model is used to reconstruct the evolution of wave statistics during a storm crossing the North Sea on 8–9 November 2007. During this storm a rogue wave (named the Andrea wave) was recorded at the Ekofisk field. The wave has characteristics comparable to the well-known New Year wave measured by Statoil at the Draupner platform 1 January 1995. Hindcast data of the storm at the nearest grid point to the Ekofisk field are here applied as input to calculate the evolution of random realizations of the sea surface and its statistical properties. Numerical simulations are carried out using the Euler equations with a higher-order spectral method (HOSM). Results are compared with some characteristics of the Andrea wave record measured by the down-looking lasers at Ekofisk.

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A comparison of the measured North Sea Andrea rogue wave with numerical simulations

Natural Hazards and Earth System Sciences Discussions ◽

10.5194/nhessd-1-5033-2013 ◽

2013 ◽

Vol 1 (5) ◽

pp. 5033-5056 ◽

Cited By ~ 1

Author(s):

E. M. Bitner-Gregersen ◽

L. Fernandez ◽

J. M. Lefèvre ◽

J. Monbaliu ◽

A. Toffoli

Keyword(s):

North Sea ◽

Rogue Wave ◽

Wave Model ◽

Sea Surface ◽

Wave Statistics ◽

The North ◽

Nonlinear Phase ◽

Spectral Wave Model ◽

Wave Event ◽

The North Sea

Abstract. A coupling of a spectral wave model with a nonlinear phase resolving model is used to reconstruct the evolution of wave statistics during a storm crossing the North Sea on 8–9 November 2007. During this storm a rogue wave (named the Andrea wave) was recorded at the Ekofisk field. The wave has characteristics comparable to the well-known New Year wave measured by Statoil at the Draupner platform the 1 January 1995. Hindcast data of the storm are here applied as input to calculate random realizations of sea surface and evolution of its statistical properties associated with this specific wave event by solving the Euler equations with a Higher Order Spectral Method (HOSM). The numerical results are compared with the Andrea wave profile as well as characteristics of the Andrea wave record measured by the down-looking lasers at the Ekofisk field.

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Numerical simulations of surface wave refraction in the North Sea, part 1: Kinematics

Deutsche Hydrographische Zeitschrift ◽

10.1007/bf02226406 ◽

1990 ◽

Vol 43 (1) ◽

pp. 1-18 ◽

Cited By ~ 3

Author(s):

Hans C. Graber ◽

Michael W. Byman ◽

Wolfgang Rosenthal

Keyword(s):

Surface Wave ◽

Numerical Simulations ◽

North Sea ◽

Wave Refraction ◽

The North ◽

The North Sea

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Numerical simulations of tidally cued vertical migrations of flatfish larvae in the North Sea

Estuarine Coastal and Shelf Science ◽

10.1016/j.ecss.2003.09.010 ◽

2004 ◽

Vol 59 (2) ◽

pp. 295-305 ◽

Cited By ~ 21

Author(s):

M. de Graaf ◽

Z. Jager ◽

C.B. Vreugdenhil ◽

M. Elorche

Keyword(s):

Numerical Simulations ◽

North Sea ◽

The North ◽

The North Sea

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Extreme offshore wave statistics in the North Sea

Flood Recovery, Innovation and Response II ◽

10.2495/friar100051 ◽

2010 ◽

Author(s):

K. Roscoe ◽

S. Caires ◽

F. Diermanse ◽

J. Groeneweg

Keyword(s):

North Sea ◽

Wave Statistics ◽

The North ◽

The North Sea ◽

Offshore Wave

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A multi-decadal wind-wave hindcast for the North Sea 1949–2014: coastDat2

10.5194/essd-2017-36 ◽

2017 ◽

Cited By ~ 1

Author(s):

Nikolaus Groll ◽

Ralf Weisse

Keyword(s):

Climate Variability ◽

North Sea ◽

Wind Wave ◽

Wave Model ◽

Wave Climate ◽

Climate Variability And Change ◽

Data Set ◽

Wave Hindcast ◽

The North ◽

The North Sea

Abstract. Long and consistent wave data are important for analysing wave climate variability and change. Moreover, such statistics are also needed in coastal and offshore design and for addressing safety-related issues at sea. Using the third-generation spectral wave model WAM a multi-decadal wind-wave hindcast for the North Sea covering the period 1949–2014 was produced. The hindcast is part of the coastDat database representing a consistent and homogenous met-ocean data set. It is shown that despite not being perfect, data from the wave hindcast are generally suitable for wave climate analysis. In particular comparisons of hindcast data with in situ and satellite observations show on average a reasonable agreement while a tendency towards overestimation of the highest waves could be inferred. Despite these limitations, the wave hindcast still provides useful data for assessing wave climate variability and change as well as for risk analysis, in particular when conservative estimates are needed. Hindcast data are stored at the World Data Center for Climate (WDCC) and can be freely accessed using the https://doi.org/10.1594/WDCC/coastDat-2_WAM-North_Sea (Groll and Weisse, 2016) or via the coastDat web-page http://www.coastdat.de.

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The Impact of the Two-Way Coupling between Wind Wave and Atmospheric Models on the Lower Atmosphere over the North Sea

Atmosphere ◽

10.3390/atmos10070386 ◽

2019 ◽

Vol 10 (7) ◽

pp. 386 ◽

Cited By ~ 2

Author(s):

Anne Wiese ◽

Emil Stanev ◽

Wolfgang Koch ◽

Arno Behrens ◽

Beate Geyer ◽

...

Keyword(s):

North Sea ◽

Wind Wave ◽

Wave Model ◽

Lower Atmosphere ◽

Small Scale ◽

Coupled Simulation ◽

The North ◽

Induced Drag ◽

The North Sea ◽

Wave Induced

The effects of coupling between the atmospheric model of the Consortium for Small-Scale Modelling-Climate Limited-area Modelling (CCLM) and the wind wave model (WAM) on the lower atmosphere within the North Sea area are studied. Due to the two-way coupling between the models, the influences of wind waves and the atmosphere on each other can be determined. This two-way coupling between these models is enabled through the introduction of wave-induced drag into CCLM and updated winds into WAM. As a result of wave-induced drag, different atmospheric parameters are either directly or indirectly influenced by the wave conditions. The largest differences between the coupled and reference model simulation are found during storm events as well as in areas of steep gradients in the mean sea level pressure, wind speed or temperature. In the two-way coupled simulation, the position and strength of these gradients vary, compared to the reference simulation, leading to differences that spread throughout the entire planetary boundary layer and outside the coupled model area, thereby influencing the atmosphere over land and ocean, although not coupled to the wave model. Ultimately, the results of both model simulations are assessed against in situ and satellite measurements, with a better general performance of the two-way coupled simulation with respect to the observations.

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