Sea/Ocean |
Celtic Sea (Sud Pierres Noires, Terrasse de Mériadzek, Site profond (N 47° 03,00'-W 08° 55,00')) |
Ports |
Port of departure : Brest (France)
Port of return : Brest (France)
|
Project |
EMSO - European Multidisciplinary Seafloor and Water Column Observatory,PAssive Margins Exploration LAboratories |
Scientific Authority |
RECHERCHES ET DÉVELOPPEMENTS TECHNOLOGIQUES Centre Ifremer Bretagne ZI Pointe du Diable 29280 Plouzané +33(0) 2 98 22 41 41 https://rd-technologiques.ifremer.fr/ |
Discipline(s) |
- TECHNOLOGY
- MARINE GEOSCIENCES
Code |
Label |
Quantity |
PI |
D90 |
Other physical oceanographic meas. |
- |
DUSSUD Loïc |
G04 |
Core soft bottom Sébastien Garziglia - 1 carotte de 32m |
- |
DUSSUD Loïc |
G27 |
Gravity measurements |
- |
DUSSUD Loïc |
G73 |
Single-beam echosounding |
- |
DUSSUD Loïc |
H71 |
Surface measurements underway (T,S) |
- |
DUSSUD Loïc |
M06 |
Routine standard measurements |
- |
DUSSUD Loïc |
|
Summary of measurements |
- -Corer boom trials. Operating trials of 5 booms in "swing" and "rotation" modes; Trials were prepared and performed with specialists from Kley France; Successful deployment of a 36-metre corer tube.
-Penetration tests with the 50-metre Penfeld. Performing 3 consecutive penetrations until a maximum penetration of 50 metres was reached; The last pullout of the rod ended by a malfunction which significantly damaged the rod. -EvoLogics modem trials: The previous dive had validated communications between the ship and the Penfeld tool at a depth of 2,200 metres; Dive to 4,200 metres (without setting down the tool) with various communication sequences. -36-metre coring: Sampling of a 36-metre long core in order to compare the measurements taken by the Penfeld's instrumented tip with a sediment sample taken in the same place. -Testing of 20 kN tips. Tests were not performed due to the Penfeld's rod damage. -Tests of velocity tip: Tests were not performed due to the Penfeld's rod damage. -Multibeam trials: Validating the modifications made to the deep sea echosounder (Seabat 7150) during the technical stop (replacement of transducers, new version of data acquisition software (PDS2000), new formats of imagery data).
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Positionning system |
Geodetic system : WORLD GEODETIC SYSTEM 1984 = WGS84
Positioning system : GPS différentiel
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