FN Archimer Export Format
PT CHAP
TI Random Ocean Swell-Rays: A Stochastic Framework
BT Chapron Bertrand, Crisan Dan, Holm Darryl, Mémin Etienne, Radomska Anna (Eds.) (2023). Stochastic Transport in Upper Ocean Dynamics. STUOD 2021 Workshop, London, UK, September 20-23. Springer International Publishing. ISBN 978-3-031-18987-6. Part of the Mathematics of Planet Earth book series (MPE,volume 10), pp.259-271
AF Resseguier, Valentin
   Hascoët, Erwan
   Chapron, Bertrand
AS 1:1;2:2;3:3;
FF 1:;2:;3:PDG-ODE-LOPS-SIAM;
C1 Lab, SCALIAN DS, Rennes, France
   OceanDataLab, Locmaria-Plouzané, France
   Laboratoire d’Océanographie Physique et Spatiale (LOPS), Ifremer, Plouzané, France
C2 SCALIAN, FRANCE
   OCEANDATALAB, FRANCE
   IFREMER, FRANCE
SI BREST
SE PDG-ODE-LOPS-SIAM
UM LOPS
UR https://archimer.ifremer.fr/doc/00813/92470/98682.pdf
LA English
DT Book section
AB Originating from distant storms, swell systems radiate across all ocean basins. Far from their sources, emerging surface waves have low steepness characteristics, with very slow amplitude variations. Swell propagation then closely follows principles of geometrical optics, i.e. the eikonal approximation to the wave equation, with a constant wave period along geodesics, when following a wave packet at its group velocity. The phase averaged evolution of quasi-linear wave fields is then dominated by interactions with underlying current and/or topography changes. Comparable to the propagation of light in a slowly varying medium, over many wavelengths, cumulative effects can lead to refraction, i.e. change of the direction of propagation of a given wave packet, so that it departs from its initial ray-propagation direction. This opens the possibility of using surface swell systems as probes to estimate turbulence along their propagating path. 
PY 2023
DI 10.1007/978-3-031-18988-3_16
ID 92470
ER

EF