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RV Corystes COR8/02

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corystes (74RY)
Cruise identifierCOR8/02
Cruise period2002-06-26 — 2002-07-09
StatusCompleted
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
PurposeResearch
ObjectivesThe work was directed toward:
a) a better understanding of the circulation processes of the southern and central North Sea in order to characterise the transport of nutrients from UK waters;
b) improved knowledge of the processes that determine areas of strong phytoplankton production in the vicinity of the Frisian Front.

The main sampling aims of the cruise were:
1) Deploy free-floating satellite tracked buoys in order to determine the Lagrangian circulation. Subsequently, a number may be retrieved.
2) To undertake Scanfish and CTD surveys to collect information on the water column structure in relation to nutrient and plankton dynamics.
3) Conduct productivity experiments and assess nutrient uptake.
Chief scientistKenneth J Medler (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Cruise reportRV Corystes COR8/02 cruise report cory8_02.pdf (0.48 MB) 
Ocean/sea areas 
GeneralNorth Sea
Specificsouthern North Sea
Track chartsRV Corystes COR8/02 cruise track — cory8_02trk.pdf (0.43 MB) 
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: activity duration in days = 12
Description: Logged near-surface hull PRT and salinity
Water bottle stationsQuantity: number of samples = 160
Description: Near-surface samples for chlorophyll, salinity and nutrients analyses
CTD stationsQuantity: number of stations = 15
Description: Vertical CTD profiles with PAR, SPM, chlorophyll sensors
Subsurface temperature and salinity measurementsQuantity: track kilometres = 2230
Description: Scanfish undulating towed body with temperature, conductivity, PAR and chlorophyll sensors
Optics (eg underwater light levels)Quantity: number of stations = 15
Description: Vertical CTD profiles with PAR, SPM, chlorophyll sensors
Current profiler (eg ADCP)Quantity: activity duration in days = 12
Description: Underway current profiling - vessel mounted ADCP
Chemical oceanography 
OxygenQuantity: number of stations = 15
Description: General oceanics sampler to collect samples during ascent at each CTD station for calibration of sensors plus nutrients analyses
PhosphateQuantity: number of stations = 15
Description: General oceanics sampler to collect samples during ascent at each CTD station for calibration of sensors plus nutrients analyses
NitrateQuantity: number of stations = 15
Description: General oceanics sampler to collect samples during ascent at each CTD station for calibration of sensors plus nutrients analyses
NitriteQuantity: number of stations = 15
Description: General oceanics sampler to collect samples during ascent at each CTD station for calibration of sensors plus nutrients analyses
AmmoniaQuantity: number of stations = 15
Description: General oceanics sampler to collect samples during ascent at each CTD station for calibration of sensors plus nutrients analyses
SilicateQuantity: number of stations = 15
Description: General oceanics sampler to collect samples during ascent at each CTD station for calibration of sensors plus nutrients analyses
Contamination 
Suspended matterQuantity: number of stations = 15
Description: General oceanics sampler to collect samples during ascent at each CTD station for calibration of sensors plus nutrients analyses
Suspended matterQuantity: number of stations = 15
Description: Vertical CTD profiles with PAR, SPM, chlorophyll sensors
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 15
Description: Vertical CTD profiles with PAR, SPM, chlorophyll sensors
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 15
Description: General oceanics sampler to collect samples during ascent at each CTD station for calibration of sensors plus nutrients analyses
Geology and geophysics 
Core - soft bottomQuantity: number of cores = 30
Description: Seabed samples for sediment chlorophyll and pore water nutrients analyses
Moorings, landers, buoys 
Physical oceanography 
Surface drifters/drifting buoys54° 55' 29" N  3° 19' 59" E — Satellite tracked free drifting buoys with drogues centred near 25m
Surface drifters/drifting buoys54° 58' 0" N  3° 16' 59" E — Satellite tracked free drifting buoys with drogues centred near 25m
Surface drifters/drifting buoys54° 42' 24" N  3° 42' 0" E — Satellite tracked free drifting buoys with drogues centred near 25m
Surface drifters/drifting buoys54° 19' 30" N  4° 10' 0" E — Satellite tracked free drifting buoys with drogues centred near 25m
Surface drifters/drifting buoys54° 7' 5" N  4° 25' 23" E — Satellite tracked free drifting buoys with drogues centred near 25m
Surface drifters/drifting buoys53° 52' 0" N  4° 39' 29" E — Satellite tracked free drifting buoys with drogues centred near 25m
Surface drifters/drifting buoys53° 46' 59" N  4° 44' 30" E — Satellite tracked free drifting buoys with drogues centred near 25m
Surface drifters/drifting buoys53° 40' 0" N  4° 50' 23" E — Satellite tracked free drifting buoys with drogues centred near 25m
Surface drifters/drifting buoys53° 52' 59" N  3° 51' 6" E — Satellite tracked free drifting buoys with drogues centred near 25m
Surface drifters/drifting buoys54° 12' 0" N  3° 19' 59" E — Satellite tracked free drifting buoys with drogues centred near 25m
Surface drifters/drifting buoys55° 40' 0" N  4° 0' 6" E — Satellite tracked free drifting buoys with drogues centred near 25m
Surface drifters/drifting buoys55° 40' 0" N  4° 24' 42" E — Satellite tracked free drifting buoys with drogues centred near 25m
Surface drifters/drifting buoys55° 25' 0" N  4° 25' 5" E — Satellite tracked free drifting buoys with drogues centred near 25m
Surface drifters/drifting buoys55° 19' 59" N  4° 0' 0" E — Satellite tracked free drifting buoys with drogues centred near 25m
Surface drifters/drifting buoys54° 55' 0" N  3° 25' 0" E — Satellite tracked free drifting buoys with drogues centred near 25m
Surface drifters/drifting buoys54° 19' 36" N  3° 40' 0" E — Satellite tracked free drifting buoys with drogues centred near 25m
Surface drifters/drifting buoys54° 30' 35" N  3° 56' 35" E — Satellite tracked free drifting buoys with drogues centred near 25m