POCK&PLOOPS
| Type | Oceanographic cruise |
|---|---|
| Ship | Haliotis |
| Ship owner | Ifremer |
| Dates | 13/04/2011 - 02/05/2011 |
| Chief scientist(s) | BALTZER Agnès , EHRHOLD Axel  |
LETG - LITTORAL ENVIRONNEMENT TELEDETECTION GEOMATIQUE GEOLITTOMER - Université de Nantes Faculté Lettres et Sciences Humaines BP 81227 44312 NANTES Cedex +33 (0)2 40 14 13 08 |
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| DOI | 10.17600/11120020 |
| Objective | Geophysical survey complement, thanks to RV Haliotis instruments, on 2 Haploops zones: bay of Concarneau and bay of Vilaine. This cruise was a follow up to the SEISPLOOPS (SEIStec - haPLOOPS) cruise conducted in June 2009. During the latter cruise we used the Seistec boomer and Edgetech sidescan sonar from the University of Caen's M2C laboratory. By using interferometric sonar, Roxann and RV Haliotis' shipboard Chirp, we could complement our data and obtain the very fine-scale bathymetry of the zone required to show the size of pockmarks and the relations which exist with gas in deeps. Finally, by using Ifremer's small ROV we could verify the degree of activity of these pockmarks. The cruise is related to the "Haploops" research action hosted by the P5 programme on Coastal ecosystems: dynamics, trends, monitoring. POCK&PLOOPS is based on close collaboration with Axel Ehrhold and Stanislas Dubois (IFREMER/Dynéco/EB). The data from the POCK&PLOOPS mission will supplement the data already acquired in the frame of the REBENT and SEISPLOOPS missions in 2009 (multibeam and sonar in the bay of Concarneau, Sparker, video camera and sonar in the bay of Vilaine). The project is conducted in the frame of the "Haploops" research action hosted by the P5 programme on Coastal ecosystems: dynamics, trends, monitoring (headed by Michel Marchand). The Haploops project is 100% funded by the Total Foundation for Biodiversity and the Sea in 2011 and 2012 (it was funded by PNEC in 2009 and 2010). |
