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RV Corystes COR9/97

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corystes (74RY)
Cruise identifierCOR9/97
Cruise period1997-08-22 — 1997-09-03
StatusCompleted
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
ObjectivesThe work is directed at a better understanding of the dynamics of the circulation processes fringing the north east coast of England, between the Firth of Forth and Flamborough Head, and in the vicinity of the Dogger Bank. It is intended to characterise the extent and nature of the density driven and seasonal jet like circulation which, from previous work in the Irish Sea and limited historical data, we believe acts as a direct and rapid pathway for transport of material from the coastal region to the central North Sea. Subsequently, the knowledge will be viewed with respect to the nutrient dynamics of the region and concerns that elevated levels of contaminants on the Dogger Bank have originated in the near coastal region. The main sampling aims of the cruise are:
1) To recover three mooring arrays deployed during Corystes 7/97.
2) Recover free floating satellite tracked buoys deployed during Corystes 7/97 to determine the Lagrangian circulation.
3. Undertake associated physical and chemical surveys of the region in support of 1) and 2).
Chief scientistJuan Brown (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Cruise reportRV Corystes COR9/97 cruise report co9_97.pdf (0.15 MB) 
Ocean/sea areas 
GeneralNorth Sea
Track chartsRV Corystes COR9/97 cruise track — trk4293a.html RV Corystes COR9/97 cruise track — trk4293b.html
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: number of samples = 82
Description: Hull mounted PRT; samples for salinometer analysis
CTD stationsQuantity: number of stations = 25
Description: FSI CTD, temperature, salinity, turbidity and fluorescence
Subsurface temperature and salinity measurementsQuantity: track kilometres = 1050
Description: Scanfish undulating towed body with temperature, conductivity, turbidity and fluorescence sensors
Chemical oceanography 
PhosphateQuantity: number of samples = 71
Description: Collected by rosette sampler during CTD profiles
PhosphateQuantity: number of samples = 82
Description: Hull mounted PRT; samples for salinometer analysis
NitrateQuantity: number of samples = 71
Description: Collected by rosette sampler during CTD profiles
NitrateQuantity: number of samples = 82
Description: Hull mounted PRT; samples for salinometer analysis
NitriteQuantity: number of samples = 71
Description: Collected by rosette sampler during CTD profiles
NitriteQuantity: number of samples = 82
Description: Hull mounted PRT; samples for salinometer analysis
AmmoniaQuantity: number of samples = 71
Description: Collected by rosette sampler during CTD profiles
AmmoniaQuantity: number of samples = 82
Description: Hull mounted PRT; samples for salinometer analysis
SilicateQuantity: number of samples = 71
Description: Collected by rosette sampler during CTD profiles
SilicateQuantity: number of samples = 82
Description: Hull mounted PRT; samples for salinometer analysis
Contamination 
Suspended matterQuantity: number of samples = 71
Description: Collected by rosette sampler during CTD profiles
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of samples = 82
Description: Hull mounted PRT; samples for salinometer analysis
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of samples = 71
Description: Collected by rosette sampler during CTD profiles
Moorings, landers, buoys 
Physical oceanography 
Current meters55° 0' 0" N  2° 0' 0" E — Recovered two meters: deployed 24/07/97, mooring 97M2, recovered 28/08/97
Current profiler (eg ADCP) Recovered ADCP: deployed 23/07/97, mooring 97M1, recovered 24/08/97
Current profiler (eg ADCP)55° 43' 59" N  2° 0' 0" E — Recovered ADCP: deployed 23/07/97, mooring 97M3, recovered 28/08/97
Surface drifters/drifting buoys53° 57' 59" N  2° 19' 59" E — Deployed 23/08/97.
Surface drifters/drifting buoys54° 6' 59" N  1° 55' 59" E — Deployed 23/08/97.
Surface drifters/drifting buoys55° 28' 59" N  1° 9' 59" W — Deployed 24/08/97.
Surface drifters/drifting buoys55° 28' 59" N  1° 22' 59" W — Deployed 24/08/97.
Surface drifters/drifting buoys54° 49' 59" N  1° 1' 59" W — Deployed 24/08/97.
Surface drifters/drifting buoys53° 58' 59" N  1° 55' 59" E — Deployed 23/08/97.
Surface drifters/drifting buoys54° 6' 59" N  2° 19' 59" E — Deployed 23/08/97.
Surface drifters/drifting buoys54° 1' 59" N  2° 19' 59" E — Deployed 23/08/97.