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RV Cefas Endeavour 14/04

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cefas Endeavour (74E9)
Cruise identifier14/04
Cruise period2004-10-22 — 2004-11-01
StatusCompleted
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
PurposeResearch
ObjectivesThe project is generally aimed at achieving a better understanding of the dynamics of the circulation processes of the seas around the UK. 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. CEND1404 is the third in a series of cruises in Autumn 2004 (ref Corystes 1304, CEND 1204) to examine change over this 2 month period from the warmest, most stratified conditions through the breakdown period.
Over the 10 day cruise we
i) recovered ADCP moorings
ii) performed Scanfish (undulating CTD, fluorescence and light) surveys.
Iii) Underway surface chlorophyll, nutrients, POC/PON and DOC/DON sampling
iv) CTD rosette stations with chlorophyll, nutrients, POC/PON, DOC/DON and Oxygen sampling.
V) NIOZ core stations in an area of retention
The mooring recoveries were performed first, located towards the eastern extreme of British waters north on the northern slope of Dogger Bank. We then performed a large scale Scanfish and CTD survey between this region and the north eastern coast of England. With good weather we were able to extend the survey into waters up to 57° North before completing the cruise with Nioz cores in the Farne Deeps and an end of cruise CTD repeat stations along the line of the first Scanfish section where the moorings had also been positioned.
Chief scientistStephen Robin Dye (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Cruise programmeRV Cefas Endeavour 14/04 cruise programme endeavour14_04.pdf  (0.02 MB) 
Cruise reportRV Cefas Endeavour 14/04 cruise report endeavour14_04.pdf (0.36 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificNorth Sea, Dogger Bank, Farne Deep, Devil's Hole
Track chartsRV Cefas Endeavour 14/04 cruise track — endeavour14_04trk.pdf (0.35 MB)  RV Cefas Endeavour 14/04 cruise track — endeavour14_04trk.html
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: number of samples = 45
Description: Underway surface samples
Surface measurements underway (T,S)Quantity: activity duration in days = 9
Description: Underway Surface Continuous Logger thermosalinograph, fluorometer
Water bottle stationsQuantity: number of stations = 84
Description: CTD ascent water bottles
CTD stationsQuantity: number of stations = 84
Description: CTD profile stations, with PAR, flouorometer, turbidity
Subsurface temperature and salinity measurementsQuantity: track kilometres = 760
Description: Undulating towed body (Scanfish) T, Conductivity, PAR, Fluorometer
Optics (eg underwater light levels)Quantity: number of stations = 84
Description: CTD profile stations, with PAR, flouorometer, turbidity
Optics (eg underwater light levels)Quantity: track kilometres = 760
Description: Undulating towed body (Scanfish) T, Conductivity, PAR, Fluorometer
Current profiler (eg ADCP)Quantity: activity duration in days = 9
Description: Underway current profiling- vessel mounted ADCP
Chemical oceanography 
OxygenQuantity: number of samples = 45
Description: Underway surface samples
OxygenQuantity: number of stations = 84
Description: CTD ascent water bottles
PhosphateQuantity: number of stations = 84
Description: CTD ascent water bottles
PhosphateQuantity: number of samples = 45
Description: Underway surface samples
Total - PQuantity: number of samples = 45
Description: Underway surface samples
Total - PQuantity: number of stations = 84
Description: CTD ascent water bottles
NitrateQuantity: number of stations = 84
Description: CTD ascent water bottles
NitrateQuantity: number of samples = 45
Description: Underway surface samples
NitriteQuantity: number of samples = 45
Description: Underway surface samples
NitriteQuantity: number of stations = 84
Description: CTD ascent water bottles
Total - NQuantity: number of stations = 84
Description: CTD ascent water bottles
Total - NQuantity: number of samples = 45
Description: Underway surface samples
AmmoniaQuantity: number of stations = 84
Description: CTD ascent water bottles
AmmoniaQuantity: number of samples = 45
Description: Underway surface samples
SilicateQuantity: number of samples = 45
Description: Underway surface samples
SilicateQuantity: number of stations = 84
Description: CTD ascent water bottles
Contamination 
Suspended matterQuantity: number of samples = 45
Description: Underway surface samples
Suspended matterQuantity: number of stations = 84
Description: CTD profile stations, with PAR, flouorometer, turbidity
Suspended matterQuantity: number of stations = 84
Description: CTD ascent water bottles
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: track kilometres = 760
Description: Undulating towed body (Scanfish) T, Conductivity, PAR, Fluorometer
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 84
Description: CTD ascent water bottles
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: activity duration in days = 9
Description: Underway Surface Continuous Logger thermosalinograph, fluorometer
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of samples = 45
Description: Underway surface samples
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 84
Description: CTD profile stations, with PAR, flouorometer, turbidity
Geology and geophysics 
Core - soft bottomQuantity: number of cores = 12
Description: NIOZ cores for contaminant and time-series analysis from 3 sites
Moorings, landers, buoys 
Physical oceanography 
Current profiler (eg ADCP)55° 41' 6" N  2° 16' 57" E — Lander-RDI WH 600kHz ADCP, 77m, recovered 24/10/04, deployed 03/10/04
Current profiler (eg ADCP)55° 32' 8" N  2° 22' 13" E — Lander-RDI WH 300kHz ADCP, 55m, recovered 23/10/04, deployed 02/09/04