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RV Corystes COR7/00

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corystes (74RY)
Cruise identifierCOR7/00
Cruise period2000-05-18 — 2000-05-25
StatusCompleted
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
ObjectivesThis was the fourth in a series of cruises planned to investigate the processes that influence productivity and the distribution and behaviour of suspended particulate matter and nutrients in the southern North Sea. The transport of nutrients and particulate matter from UK waters to the southern North Sea and European coastal zone is especially of interest.
1) To service the Smart Buoy and mini-pod moorings deployed during March in the Sean Gas Field and at the Outer Gabbard;
2) To deploy ADCP and current meter moorings in the vicinity of the Sean gas Field Smart Buoy;
3) To collect water samples and CTD profiles;
4) To complete Scanfish surveys;
5) To deploy satellite-tracked drifting buoys.
Chief scientistKenneth J Medler (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Cruise reportRV Corystes COR7/00 cruise report co7_00.pdf (0.15 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificOuter Gabbard, Sean Gas Field
Track chartsRV Corystes COR7/00 cruise track — trk4404a.html RV Corystes COR7/00 cruise track — trk4404b.html RV Corystes COR7/00 cruise track — trk4404c.html
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: activity duration in days = 7
Description: Logged hull PRT, temperature, salinity samples
CTD stationsQuantity: number of stations = 31
Description: Vertical profiles with FSI CTD - turbidity, PAR and chlorophyll sensors fitted
Subsurface temperature and salinity measurementsQuantity: track kilometres = 640
Description: Scanfish undulating towed body with temperature, conductivity, turbidity, PAR and fluorescence sensors
Optics (eg underwater light levels)Quantity: number of stations = 31
Description: Vertical profiles with FSI CTD - turbidity, PAR and chlorophyll sensors fitted
Current profiler (eg ADCP)Quantity: activity duration in days = 7
Description: Underway current profiling using RDI vessel-mounted ADCP
Chemical oceanography 
PhosphateQuantity: number of samples = 120
Description: Near surface samples along Scanfish sections and during cruise
PhosphateQuantity: number of stations = 31
Description: General oceanics sampler used to collect samples during upcasts at each CTD station. Samples for conductivity/salinity calibration of CTD, plus nitrates, nitrites, silicates, phosphates, ammonium, total-N, suspended particulate matter, chlorophyll and phaeopigment
NitrateQuantity: number of samples = 120
Description: Near surface samples along Scanfish sections and during cruise
NitrateQuantity: number of stations = 31
Description: General oceanics sampler used to collect samples during upcasts at each CTD station. Samples for conductivity/salinity calibration of CTD, plus nitrates, nitrites, silicates, phosphates, ammonium, total-N, suspended particulate matter, chlorophyll and phaeopigment
NitriteQuantity: number of samples = 120
Description: Near surface samples along Scanfish sections and during cruise
NitriteQuantity: number of stations = 31
Description: General oceanics sampler used to collect samples during upcasts at each CTD station. Samples for conductivity/salinity calibration of CTD, plus nitrates, nitrites, silicates, phosphates, ammonium, total-N, suspended particulate matter, chlorophyll and phaeopigment
Total - NQuantity: number of stations = 31
Description: General oceanics sampler used to collect samples during upcasts at each CTD station. Samples for conductivity/salinity calibration of CTD, plus nitrates, nitrites, silicates, phosphates, ammonium, total-N, suspended particulate matter, chlorophyll and phaeopigment
AmmoniaQuantity: number of samples = 120
Description: Near surface samples along Scanfish sections and during cruise
AmmoniaQuantity: number of stations = 31
Description: General oceanics sampler used to collect samples during upcasts at each CTD station. Samples for conductivity/salinity calibration of CTD, plus nitrates, nitrites, silicates, phosphates, ammonium, total-N, suspended particulate matter, chlorophyll and phaeopigment
SilicateQuantity: number of samples = 120
Description: Near surface samples along Scanfish sections and during cruise
SilicateQuantity: number of stations = 31
Description: General oceanics sampler used to collect samples during upcasts at each CTD station. Samples for conductivity/salinity calibration of CTD, plus nitrates, nitrites, silicates, phosphates, ammonium, total-N, suspended particulate matter, chlorophyll and phaeopigment
Contamination 
Suspended matterQuantity: number of stations = 31
Description: General oceanics sampler used to collect samples during upcasts at each CTD station. Samples for conductivity/salinity calibration of CTD, plus nitrates, nitrites, silicates, phosphates, ammonium, total-N, suspended particulate matter, chlorophyll and phaeopigment
Suspended matterQuantity: track kilometres = 640
Description: Scanfish undulating towed body with temperature, conductivity, turbidity, PAR and fluorescence sensors
Suspended matterQuantity: number of stations = 31
Description: Vertical profiles with FSI CTD - turbidity, PAR and chlorophyll sensors fitted
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 31
Description: Vertical profiles with FSI CTD - turbidity, PAR and chlorophyll sensors fitted
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 31
Description: General oceanics sampler used to collect samples during upcasts at each CTD station. Samples for conductivity/salinity calibration of CTD, plus nitrates, nitrites, silicates, phosphates, ammonium, total-N, suspended particulate matter, chlorophyll and phaeopigment
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: track kilometres = 640
Description: Scanfish undulating towed body with temperature, conductivity, turbidity, PAR and fluorescence sensors
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of samples = 120
Description: Near surface samples along Scanfish sections and during cruise
Moorings, landers, buoys 
Physical oceanography 
Optics (eg underwater light levels)53° 9' 59" N  2° 48' 59" E — Single mooring, sensors in upper 2m, for pressure, temperature, conductivity, chlorophyll, photosynthetically active radiation and nitrate recovered - deployed 26/03/00
Optics (eg underwater light levels)53° 9' 59" N  2° 48' 59" E — Single mooring, sensors in upper 2m, for pressure, temperature, conductivity, chlorophyll, photosynthetically active radiation and nitrate recovered - deployed 20/05/00
Optics (eg underwater light levels)52° 0' 0" N  2° 19' 59" E — Single mooring, sensors in upper 2m, for pressure, temperature, conductivity, chlorophyll, photosynthetically active radiation and nitrate recovered - deployed 18/05/00
Optics (eg underwater light levels)52° 0' 0" N  2° 19' 59" E — Single mooring, sensors in upper 2m, for pressure, temperature, conductivity, chlorophyll, photosynthetically active radiation and nitrate recovered - deployed 24/03/00
Current meters53° 3' 59" N  2° 36' 0" E — Current meter mooring F deployed 20/05/00 - instruments at 3m and 19m heights, temperature and conductivity
Current meters53° 28' 59" N  2° 42' 0" E — Current meter mooring A deployed 20/05/00 - instruments at 3m and 19m heights, temperature and conductivity
Current meters53° 15' 59" N  3° 1' 59" E — Current meter mooring G deployed 30/05/00 - instruments at 3m and 19m heights, temperature and conductivity
Current meters52° 48' 59" N  2° 55' 59" E — Curent meter mooring E deployed 20/05/00 - instruments at 3m and 19m heights, temperature, conductivity and turbidity
Current profiler (eg ADCP)53° 19' 59" N  2° 45' 0" E — Bottom mounted ADCP mooring B deployed 21/05/00
Current profiler (eg ADCP)52° 58' 59" N  2° 51' 59" E — Bottom mounted ADCP mooring D deployed 21/05/00
Surface drifters/drifting buoys52° 1' 59" N  1° 51' 59" E — Surface drifter, 15m drogue, released 18/05/00
Surface drifters/drifting buoys52° 1' 59" N  2° 7' 59" E — Surface drifter, 15m drogue, released 18/05/00
Surface drifters/drifting buoys53° 15' 59" N  1° 27' 59" E — Surface drifter, 15m drogue, released 19/05/00
Surface drifters/drifting buoys53° 9' 59" N  1° 0' 0" E — Surface drifter, 15m drogue, released 19/05/00
Surface drifters/drifting buoys52° 23' 59" N  2° 19' 59" E — Surface drifter, 15m drogue, released 19/05/00
Surface drifters/drifting buoys52° 38' 59" N  2° 6' 59" E — Surface drifter, 15m drogue, released 24/05/00
Sea level (inc. bot. press., inverted echosounder)53° 9' 59" N  2° 48' 59" E — Bottom mounted minipod with pressure, temperature turbidity sensors recovered - deployed 20/05/00
Sea level (inc. bot. press., inverted echosounder)53° 9' 59" N  2° 48' 59" E — Bottom mounted minipod with pressure, temperature turbidity sensors recovered - deployed 26/03/00
Chemical oceanography 
Nitrate53° 9' 59" N  2° 48' 59" E — Single mooring, sensors in upper 2m, for pressure, temperature, conductivity, chlorophyll, photosynthetically active radiation and nitrate recovered - deployed 20/05/00
Nitrate53° 9' 59" N  2° 48' 59" E — Single mooring, sensors in upper 2m, for pressure, temperature, conductivity, chlorophyll, photosynthetically active radiation and nitrate recovered - deployed 26/03/00
Nitrate52° 0' 0" N  2° 19' 59" E — Single mooring, sensors in upper 2m, for pressure, temperature, conductivity, chlorophyll, photosynthetically active radiation and nitrate recovered - deployed 18/05/00
Nitrate52° 0' 0" N  2° 19' 59" E — Single mooring, sensors in upper 2m, for pressure, temperature, conductivity, chlorophyll, photosynthetically active radiation and nitrate recovered - deployed 24/03/00
Contamination 
Suspended matter53° 9' 59" N  2° 48' 59" E — Bottom mounted minipod with pressure, temperature turbidity sensors recovered - deployed 26/03/00
Suspended matter53° 9' 59" N  2° 48' 59" E — Single mooring, sensors in upper 2m, for pressure, temperature, conductivity, chlorophyll, photosynthetically active radiation and nitrate recovered - deployed 20/05/00
Suspended matter52° 0' 0" N  2° 19' 59" E — Single mooring, sensors in upper 2m, for pressure, temperature, conductivity, chlorophyll, photosynthetically active radiation and nitrate recovered - deployed 18/05/00
Suspended matter52° 0' 0" N  2° 19' 59" E — Single mooring, sensors in upper 2m, for pressure, temperature, conductivity, chlorophyll, photosynthetically active radiation and nitrate recovered - deployed 24/03/00
Suspended matter53° 9' 59" N  2° 48' 59" E — Bottom mounted minipod with pressure, temperature turbidity sensors recovered - deployed 20/05/00
Suspended matter53° 9' 59" N  2° 48' 59" E — Single mooring, sensors in upper 2m, for pressure, temperature, conductivity, chlorophyll, photosynthetically active radiation and nitrate recovered - deployed 26/03/00
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)53° 9' 59" N  2° 48' 59" E — Single mooring, sensors in upper 2m, for pressure, temperature, conductivity, chlorophyll, photosynthetically active radiation and nitrate recovered - deployed 26/03/00
Phytoplankton pigs (eg chlorophyll, fluorescence)52° 0' 0" N  2° 19' 59" E — Single mooring, sensors in upper 2m, for pressure, temperature, conductivity, chlorophyll, photosynthetically active radiation and nitrate recovered - deployed 24/03/00
Phytoplankton pigs (eg chlorophyll, fluorescence)52° 0' 0" N  2° 19' 59" E — Single mooring, sensors in upper 2m, for pressure, temperature, conductivity, chlorophyll, photosynthetically active radiation and nitrate recovered - deployed 18/05/00
Phytoplankton pigs (eg chlorophyll, fluorescence)53° 9' 59" N  2° 48' 59" E — Single mooring, sensors in upper 2m, for pressure, temperature, conductivity, chlorophyll, photosynthetically active radiation and nitrate recovered - deployed 20/05/00