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Analysis of an Event of "Parametric Rolling" Onboard RV "Polarstern" Based on Shipborne Wave Radar and Satellite Data

Bruns, Thomas and Lehner, Susanne and Li, Xiao-Ming and Hessner, Katrin and Rosenthal, Wolfgang (2011) Analysis of an Event of "Parametric Rolling" Onboard RV "Polarstern" Based on Shipborne Wave Radar and Satellite Data. IEEE Journal of Oceanic Engineering, 36 (2), pp. 364-372. ISSN 0364-9059.

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Official URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5766770


During the Antarctic summer season 2008/2009 the wave radar system WaMoS II was installed onboard of the German research vessel �Polarstern.� The purpose was to collect quasi-in situ data for the comparison with satellite-borne SAR and altimeter instruments (Envisat, TerraSAR-X, Jason). The experiment was part of the German research project DeMarine- Security. On 7 March 2009 in the central South Atlantic Ocean, �Polarstern� was heading towards Punta Arenas against a rough cross sea. In the night, a sudden event of heavy rolling, i.e., an oscillation about its length axis, hit the vessel and lasted for a few minutes. Using WaMoS II data, as well as ENVISAT and wave model data, we investigate the conditions under which the event occurred. It is shown that the rolling was caused by a �parametric� resonance when the period of encounter came close to one half of the vessels�s natural rolling period. We conclude that an onboard wave radar can be helpful in diagnosing and forecasting critical conditions.

Document Type:Article
Title:Analysis of an Event of "Parametric Rolling" Onboard RV "Polarstern" Based on Shipborne Wave Radar and Satellite Data
AuthorsInstitution or Email of Authors
Bruns, ThomasDWD
Lehner, SusanneDLR
Li, Xiao-MingDLR
Hessner, KatrinOceanWave GmbH
Rosenthal, WolfgangGAUSS GmbH
Date:April 2011
Journal or Publication Title:IEEE Journal of Oceanic Engineering
Refereed publication:Yes
In ISI Web of Science:Yes
Page Range:pp. 364-372
Keywords:Ocean surface waves, parametric rolling, shipborne wave radar, synthetic aperture radar
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignement
DLR - Research theme (Project):L -- no assignement
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Marine Remote Sensing
Deposited By: Xiao Ming Li
Deposited On:18 Jan 2012 11:19
Last Modified:12 Dec 2013 21:34

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