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Le Surell AR1/2004
Cruise summary report
| Cruise Info. | |
| Ship name | Le Surell |
| Cruise identifier | AR1/2004 |
| Cruise period | 2004-02-08 — 2004-02-08 |
| Status | Completed |
| Port of departure | Port-Saint-Louis-du-Rhône, France |
| Port of return | Port-Saint-Louis-du-Rhône, France |
| Purpose | Research |
| Objectives | Bathymetric, ADCP and sidescan sonar survey of the lower reaches of the Rhône river to the mouth after the large Rhône flood in December 2003. This cruise was intended originally to complete survey lines not covered during the bathymetric survey of cruise AR1-2003. However, due to bathymetric changes caused by the December 2003 flood, it was decided to collect river profiles to enable a comparison with the pre-flood (November 2003) profiles. Strong Mistral winds meant that it was only possible to collect data during one of the four planned survey days.
This was the third cruise in a series planned for the Gulf of Lions within Workpackage 1 (Shelf and River input systems) of the European Union FP5 project European Margin Strata Formation (EUROSTRATAFORM) (EVK3-CT-2002-00079) (see also AR1-2003 and FR1-2003). EUROSTRATAFORM objectives are to explore the fate of sediment particles from their source in rivers through to their deposition on shallow deltas, the continental shelf and deep sea basins. |
| Chief scientist | Carl L Amos (Southampton Oceanography Centre) |
| Project | EUROSTRATAFORM |
| Coordinating body | Challenger Division, SOC, Southampton, SO14 3ZH |
| Ocean/sea areas | |
| General | Mediterranean Sea |
| Specific | Gulf of Lions, northwest Mediterranean |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Quantity: track kilometres = 16.668 Description: Surface temperature measurements underway, single beam Lowrance echosounder 200kHz, surface water temperature, continuous recording |
| Current profiler (eg ADCP) | Quantity: track kilometres = 16.668 Description: ADCP current profiler, RDI 600 kHz Workhorse, backscatter intensity, vertical profile, continuous recording |
| Current profiler (eg ADCP) | Quantity: track kilometres = 16.668 Description: ADCP current profiler, RDI 600 kHz Workhorse, depth to bottom and seabed morphology, continuous recording |
| Current profiler (eg ADCP) | Quantity: track kilometres = 16.668 Description: ADCP current profiler, RDI 600 kHz Workhorse, current velocity, vertical profile, continuous recording |
| Current profiler (eg ADCP) | Quantity: number of track lines = 21 Description: ADCP current profiler, RDI 600 kHz Workhorse, river discharge |
| Geology and geophysics | |
| Single-beam echosounding | Quantity: track kilometres = 16.668 Description: Single beam echosounding, single beam Lowrance echosounder 200kHz, depth to bottom, continuous recording |
| Long/short range side scan sonar | Quantity: track kilometres = 16.668 Description: High resolution sidescan sonar imaging, Marine Electronics 1640, 500kHz sidescan sonar, surface backscatter, continuous recording |
