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RV Corystes COR11/00

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corystes (74RY)
Cruise identifierCOR11/00
Cruise period2000-08-15 — 2000-08-31
StatusCompleted
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
ObjectivesThe work is directed toward:
1. A better understanding of the dynamics of the circulation processes of the central North Sea in order to characterise the extent and nature of density driven and seasonal jet-like circulation which acts as a direct and rapid pathway for transport of material. Subsequently, the knowledge will be viewed with respect to concerns that elevated levels of contaminants on the Dogger Bank have originated in the near coastal regions.
2. Iimproved knowledge of the processes that determine areas of strong phytoplankton production in the vicinity of the Dogger Bank.
3. A resolution of the processes that influence primary productivity and the distribution and behaviour of particulate matter and nutrients in the southern North Sea. In particular, the interaction between UK and Dutch waters.
Chief scientistJuan Brown (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Cruise reportRV Corystes COR11/00 cruise report co11_00.pdf (0.17 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificSouthern North Sea; Dogger Bank
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: activity duration in days = 17
Description: Logged hull PRT temperatures, radiation and salinity
CTD stationsQuantity: number of stations = 17
Description: Vertical profiles with FSI CTD - turbidity, PAR and chlorophyll sensors fitted
Subsurface temperature and salinity measurementsQuantity: track kilometres = 1480
Description: Scanfish undulating towed body with temperature, conductivity, turbidity, PAR and fluorescence sensors
Optics (eg underwater light levels)Quantity: track kilometres = 1480
Description: Scanfish undulating towed body with temperature, conductivity, turbidity, PAR and fluorescence sensors
Optics (eg underwater light levels)Quantity: number of stations = 17
Description: Vertical profiles with FSI CTD - turbidity, PAR and chlorophyll sensors fitted
Current profiler (eg ADCP)Quantity: activity duration in days = 17
Description: Underway current profiling with vessel mounted ADCP
Chemical oceanography 
PhosphateQuantity: number of samples = 155
Description: Near surface samples along Scanfish sections and during cruise
PhosphateQuantity: number of stations = 17
Description: General oceanic sampler used to collect samples during ascent at each CTD station. Samples for conductivity/salinity calibration of CTD, for chlorophyll and suspended particulates for calibration of fluorometer and turbidity sensors. Sample for nitrate, nitrite, silicate, phosphate and ammonium analyses.
NitrateQuantity: number of samples = 155
Description: Near surface samples along Scanfish sections and during cruise
NitrateQuantity: number of stations = 17
Description: General oceanic sampler used to collect samples during ascent at each CTD station. Samples for conductivity/salinity calibration of CTD, for chlorophyll and suspended particulates for calibration of fluorometer and turbidity sensors. Sample for nitrate, nitrite, silicate, phosphate and ammonium analyses.
NitriteQuantity: number of stations = 17
Description: General oceanic sampler used to collect samples during ascent at each CTD station. Samples for conductivity/salinity calibration of CTD, for chlorophyll and suspended particulates for calibration of fluorometer and turbidity sensors. Sample for nitrate, nitrite, silicate, phosphate and ammonium analyses.
NitriteQuantity: number of samples = 155
Description: Near surface samples along Scanfish sections and during cruise
AmmoniaQuantity: number of stations = 17
Description: General oceanic sampler used to collect samples during ascent at each CTD station. Samples for conductivity/salinity calibration of CTD, for chlorophyll and suspended particulates for calibration of fluorometer and turbidity sensors. Sample for nitrate, nitrite, silicate, phosphate and ammonium analyses.
AmmoniaQuantity: number of samples = 155
Description: Near surface samples along Scanfish sections and during cruise
SilicateQuantity: number of stations = 17
Description: General oceanic sampler used to collect samples during ascent at each CTD station. Samples for conductivity/salinity calibration of CTD, for chlorophyll and suspended particulates for calibration of fluorometer and turbidity sensors. Sample for nitrate, nitrite, silicate, phosphate and ammonium analyses.
SilicateQuantity: number of samples = 155
Description: Near surface samples along Scanfish sections and during cruise
Contamination 
Suspended matterQuantity: number of stations = 17
Description: General oceanic sampler used to collect samples during ascent at each CTD station. Samples for conductivity/salinity calibration of CTD, for chlorophyll and suspended particulates for calibration of fluorometer and turbidity sensors. Sample for nitrate, nitrite, silicate, phosphate and ammonium analyses.
Suspended matterQuantity: number of stations = 17
Description: Vertical profiles with FSI CTD - turbidity, PAR and chlorophyll sensors fitted
Suspended matterQuantity: track kilometres = 1480
Description: Scanfish undulating towed body with temperature, conductivity, turbidity, PAR and fluorescence sensors
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of samples = 155
Description: Near surface samples along Scanfish sections and during cruise
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 17
Description: General oceanic sampler used to collect samples during ascent at each CTD station. Samples for conductivity/salinity calibration of CTD, for chlorophyll and suspended particulates for calibration of fluorometer and turbidity sensors. Sample for nitrate, nitrite, silicate, phosphate and ammonium analyses.
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 17
Description: Vertical profiles with FSI CTD - turbidity, PAR and chlorophyll sensors fitted
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: track kilometres = 1480
Description: Scanfish undulating towed body with temperature, conductivity, turbidity, PAR and fluorescence sensors
Meteorology 
Incident radiationQuantity: activity duration in days = 17
Description: Logged hull PRT temperatures, radiation and salinity
Moorings, landers, buoys 
Physical oceanography 
Optics (eg underwater light levels)53° 9' 59" N  2° 48' 59" E — Mooring 'H', recovered 28/08/00, deployed 30/06/00; sensors in upper 2m for pressure, temperature, conductivity, chlorophyll, nitrate and turbidity
Current meters53° 3' 59" N  2° 36' 0" E — Current meter mooring 'F', recovered 28/08/00, deployed 27/06/00
Current meters53° 28' 59" N  2° 42' 0" E — Current meter mooring 'A', recovered 27/08/00, deployed 27/06/00
Current meters52° 48' 59" N  2° 55' 59" E — Current meter mooring 'E', recovered 27/08/00, deployed 28/06/00
Current meters53° 15' 59" N  3° 1' 59" E — Current meter mooring 'G', recovered 27/08/00, deployed 27/06/00
Current profiler (eg ADCP)53° 19' 59" N  2° 45' 0" E — Bottom mounted ADCP, mooring 'B', recovered 27/08/00, deployed 27/06/00
Current profiler (eg ADCP)55° 36' 59" N  2° 17' 59" E — Bottom mounted ADCP, mooring 'J', recovered 21/08/00, deployed 03/07/00
Current profiler (eg ADCP)55° 13' 59" N  2° 32' 59" E — Bottom mounted ADCP, mooring 'L', recovered 21/08/00, deployed 03/07/00
Current profiler (eg ADCP)55° 2' 59" N  2° 40' 59" E — Bottom mounted ADCP, mooring 'M', recovered 21/08/00, deployed 03/07/00
Current profiler (eg ADCP)55° 22' 59" N  2° 27' 0" E — Bottom mounted ADCP, mooring 'K', recovered 21/08/00, deployed 03/07/00
Current profiler (eg ADCP)52° 58' 59" N  2° 51' 59" E — Bottom mounted ADCP, mooring 'D', recovered 27/08/00, deployed 28/06/00
Chemical oceanography 
Nitrate53° 9' 59" N  2° 48' 59" E — Mooring 'H', recovered 28/08/00, deployed 30/06/00; sensors in upper 2m for pressure, temperature, conductivity, chlorophyll, nitrate and turbidity
Contamination 
Suspended matter53° 9' 59" N  2° 48' 59" E — Mooring 'H', recovered 28/08/00, deployed 30/06/00; sensors in upper 2m for pressure, temperature, conductivity, chlorophyll, nitrate and turbidity
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)53° 9' 59" N  2° 48' 59" E — Mooring 'H', recovered 28/08/00, deployed 30/06/00; sensors in upper 2m for pressure, temperature, conductivity, chlorophyll, nitrate and turbidity