FN Archimer Export Format
PT J
TI Note on the directional properties of meter-scale gravity waves
BT 
AF PEUREUX, Charles
   BENETAZZO, Alvise
   ARDHUIN, Fabrice
AS 1:1;2:2;3:3;
FF 1:PDG-ODE-LOPS-SIAM;2:;3:;
C1 Univ Brest, Lab Oceanog Phys & Spatiale, CNRS, IFREMER,IRD, F-29200 Plouzane, France.
   Italian Natl Res Council, Inst Marine Sci, Venice, Italy.
C2 IFREMER, FRANCE
   ITALIAN NATL RES COUNCIL, ITALY
   CNRS, FRANCE
SI BREST
SE PDG-ODE-LOPS-SIAM
UM LOPS
IN WOS Ifremer jusqu'en 2018
   DOAJ
   copubli-france
   copubli-europe
IF 2.539
TC 24
UR https://archimer.ifremer.fr/doc/00416/52778/53657.pdf
   https://archimer.ifremer.fr/doc/00416/52778/53658.pdf
LA English
DT Article
AB The directional distribution of the energy of young waves is bimodal for frequencies above twice the peak frequency, and that distribution can be obscured by the presence of bound waves. Here we analyze in detail a typical case measured with a peak frequency fp = 0.18 Hz and a wind speed of 10.7 m s−1. The directional distribution for a given wavenumber is nearly symmetric, with the separation of two peaks of the directional distribution growing with frequency, reaching a separation of 150° at 35 times the peak wave number kp, with a separation that increases for wavenumbers up to 45 kp. When considering only free waves, the lobe ratio of peak energy density to the minimum energy level, in the wind direction, increases linearly with the non-dimensional wavenumber k / kp, up to a value of 6 at k / kp ≃ 22, possibly more for shorter components. These observations extend to shorter components previous measurements, and have important consequences for wave properties sensitive to the directional distribution, such as surface slopes, Stokes drift or microseism sources. 
PY 2018
PD JAN
SO Ocean Science
SN 1812-0784
PU Copernicus Gesellschaft Mbh
VL 14
IS 1
UT 000423118600001
BP 41
EP 52
DI 10.5194/os-14-41-2018
ID 52778
ER

EF