The workshop "From surf beats to the Earth's hum: understanding infragravity waves and interpreting long period signals" hosted on March 12 and 13 by LabexMer at IUEM (Brest, France), will gather researchers from around the world interested in coastal hydrodynamics, ocean engineering, and seismology... with a common interest in slow motions, with typical oscillation periods from 30 s to 5 minutes.
Oscillations with periods from 30 s to 5 minutes are present in many geophysical signals, from sea level at the shoreline, where it plays an important part in marine submersion and sediment transport, to seismic records. These oscillations can be amplified and make iceshelves, small harbors and ship moorings ring, causing important damage. Although we know that these oscillations are related to ocean wave groups and their beating, the energy fluxes from short ocean waves to long infragravity waves is still debated. Also the generation of seismic waves from these long ocean waves is only being uncovered now. These topics are part of the LabexMer Axis 7 (Waves and marine structures) and the French ANR project "MIcroseism Modeling for Oceanographic and Seismic Applications" (MIMOSA), a partnership between IPG Paris and Ifremer.
A first session dedicated to IG waves in a coastal context will be held on Thursday 12, in the afternoon. A second session about seismic signals and the global IG wave field will be held on Friday 13.
Both will take place in Amphi A, IUEM (Plouzané, France), with live streaming on the web.
See http://bit.ly/1yJLvmb for a detailed program and other information.