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RV Corystes COR10/95
Cruise summary report
Cruise Info. | |||||||||||||||||||||||||
Ship name (ship code) | RV Corystes (74RY) | ||||||||||||||||||||||||
Cruise identifier | COR10/95 | ||||||||||||||||||||||||
Cruise period | 1995-09-25 — 1995-10-17 | ||||||||||||||||||||||||
Status | Completed | ||||||||||||||||||||||||
Port of departure | Lowestoft, United Kingdom | ||||||||||||||||||||||||
Port of return | Lowestoft, United Kingdom | ||||||||||||||||||||||||
Objectives | The work is directed at a better understanding of the dynamics of the North Channel which control the flushing characteristics of the Irish Sea. Net outflow from the Irish Sea is northward but there are apparently long periods of inflow on the western side of the channel. It is not known to what extent outflowing water recirculates and extends southward along the Irish coast or what importance inflows of Atlantic water have on flushing characteristics of the region. Variability in the flow regime and factors governing it are poorly understood. The main sampling aims of the cruise were:
1. To deploy and recover mooring arrays in the North Channel and western Irish Sea. 2. Deploy and retrieve free floating ARGOS buoys in the North Channel and western Irish Sea to determine the Lagrangian circulation. 3. Undertake associated physical and biological surveys of the region in support of 1) and 2). 4. Continue inter-comparisons of the Valeport BFM308 and Aanderaa RCM-7 current meters. 5. Undertake SCANFISH trials. 6. Measure near bed velocities in the vicinity of a munitions dumping site in the North Channel. 7. If possible, recover the Minipod at the sand extraction site Area 107 in the outer Wash. Failing this, service the guard buoy marking the position of the minipod. 8. Test for acoustic interference with the Tritech alimeter on the CTD rosette. | ||||||||||||||||||||||||
Chief scientist | Juan Brown (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) | ||||||||||||||||||||||||
Cruise report | (0.25 MB) | ||||||||||||||||||||||||
Ocean/sea areas | |||||||||||||||||||||||||
General | North Sea Irish Sea and St. George's Channel | ||||||||||||||||||||||||
Specific | Irish Sea, North Channel, Malin Shelf and North Sea | ||||||||||||||||||||||||
Track charts | |||||||||||||||||||||||||
Measurements | |||||||||||||||||||||||||
Physical oceanography | |||||||||||||||||||||||||
Surface measurements underway (T,S) | Quantity: activity duration in days = 20 Description: continuous T & S | ||||||||||||||||||||||||
CTD stations | Quantity: number of stations = 5 Description: also 260 miles undulating CTD | ||||||||||||||||||||||||
Current meters | Quantity: number of stations = 3 Description: 5 current meters recovered | ||||||||||||||||||||||||
Current profiler (eg ADCP) | Quantity: activity duration in days = 20 Description: continuous ADCP | ||||||||||||||||||||||||
Surface drifters/drifting buoys | Quantity: number of deployments = 9 Description: satellite tracked drifting buoys | ||||||||||||||||||||||||
Chemical oceanography | |||||||||||||||||||||||||
Phosphate | Quantity: number of samples = 97 | ||||||||||||||||||||||||
Nitrate | Quantity: number of samples = 97 | ||||||||||||||||||||||||
Nitrite | Quantity: number of samples = 97 | ||||||||||||||||||||||||
Ammonia | Quantity: number of samples = 97 | ||||||||||||||||||||||||
Silicate | Quantity: number of samples = 97 | ||||||||||||||||||||||||
Contamination | |||||||||||||||||||||||||
Suspended matter | Quantity: number of stations = 5 | ||||||||||||||||||||||||
Biology and fisheries | |||||||||||||||||||||||||
Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: number of samples = 97 | ||||||||||||||||||||||||
Moorings, landers, buoys | |||||||||||||||||||||||||
Physical oceanography | |||||||||||||||||||||||||
Current meters | 53° 30' 0" N 5° 19' 59" W — 2 moored c/m recovered (102days) | ||||||||||||||||||||||||
Current meters | 54° 51' 0" N 5° 22' 59" W — | ||||||||||||||||||||||||
Current meters | 54° 17' 59" N 5° 5' 59" W — 3 moored c/m recovered (42days) | ||||||||||||||||||||||||
Data held at BODC | Get data | ||||||||||||||||||||||||
Series/Profiles | |||||||||||||||||||||||||
5 CTD/STD cast | Transmittance and attenuance of the water column Vertical spatial coordinates Salinity of the water column Temperature of the water column Concentration of suspended particulate material in the water column Transmittance and attenuance of the water column Vertical spatial coordinates Salinity of the water column Temperature of the water column Concentration of suspended particulate material in the water column
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