FN Archimer Export Format
PT J
TI Floe Size Effect on Wave-Ice Interactions: Possible Effects, Implementation in Wave Model, and Evaluation
BT 
AF BOUTIN, Guillaume
   ARDHUIN, Fabrice
   DUMONT, Dany
   SEVIGNY, Caroline
   GIRARD-ARDHUIN, Fanny
   ACCENSI, Mickael
AS 1:3;2:1;3:2;4:2;5:3;6:3;
FF 1:PDG-ODE-LOPS-SIAM;2:;3:;4:;5:PDG-ODE-LOPS-SIAM;6:PDG-ODE-LOPS-SIAM;
C1 Univ Brest, CNRS, IUEM, LOPS,Ifremer,IRD, Brest, France.
   Univ Quebec Rimouski, Inst Sci Mer, Rimouski, PQ, Canada.
C2 CNRS, FRANCE
   UNIV QUEBEC (UQAR-ISMER), CANADA
   IFREMER, FRANCE
SI BREST
SE PDG-ODE-LOPS-SIAM
UM LOPS
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-int-hors-europe
IF 3.235
TC 39
UR https://archimer.ifremer.fr/doc/00454/56591/58274.pdf
LA English
DT Article
AB Wind waves may play an important role in the evolution of sea ice. That role is largely determined by how fast the ice layer dissipates the wave energy. The transition from a continuous layer of ice to a series of broken floes is expected to have a strong impact on the several attenuation processes. Here we explore the possible effects of basal friction, scattering, and dissipation within the ice layer. The ice is treated as a single layer that can be fractured in many floes. Dissipation associated with ice flexure is evaluated using an anelastic linear dissipation and a cubic inelastic viscous dissipation. Tests aiming to reproduce a Marginal Ice Zone are used to discuss the effects of each process separately. Attenuation is exponential for friction and scattering. Scattering produces an increase in the wave height near the ice edge and broadens the wave directional spectrum, especially for short-period waves. The nonlinear inelastic dissipation is larger for larger wave heights as long as the ice is not broken. These effects are combined in a realistic simulation of an ice break-up event observed south of Svalbard in 2010. The recorded rapid shift from a strong attenuation to little attenuation when the ice is broken is only reproduced when using a nonlinear dissipation that vanishes when the ice is broken. A preliminary pan-Arctic test of these different parameterizations suggests that inelastic dissipation alone is not enough and requires its combination with basal friction. 
PY 2018
PD JUN
SO Journal Of Geophysical Research-oceans
SN 2169-9275
PU Amer Geophysical Union
VL 123
IS 7
UT 000441888200020
BP 4779
EP 4805
DI 10.1029/2017JC013622
ID 56591
ER

EF