Cruise inventory

RV Cefas Endeavour 12/04

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cefas Endeavour (74E9)
Cruise identifier12/04
Cruise period2004-09-30 — 2004-10-09
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.
This cruise and the previous Corystes 13/04 and following Endeavour 14/04 cruises are targeted to describe the gradual (September - November) alteration of pathways as frontal regions move and revert to the fully mixed and largely wind driven winter regime. The chosen area of interest is the Northern flank of the Dogger Bank along a line that was previously visited in June and August 1999, 2000 and in 2001.
The structure of the mixing in the bottom region, and for comparisons with models, a thermistor chain and ADCPS will be deployed for the period between the cruises, this will enable the exact timing and nature of breakdown to be indentified.
As well as the thermohaline structure the phtyo plankton structure and nutrient uptake will be investigated. With regular samples taken for Isotope analysis.
Oxygen measurements will also be undertaken in the Oyster grounds region.
The main sampling aims of the cruise are:
1. To characterise the hydrographic structure associated with the frontal regions and investigate the transport pathways. By use of towed undulating CTDs.
2. Deploy ARGOS drifting buoys to quantify the Lagrangian circulation.
3. Recover and redeploy Mooring (ADCP and thermistor chain) to study the mixing processes in the transistional region.
4. Conduct experiments for phtyoplankton production both by Nitrogen uptake method and by Carbon14 labelling.
5. Take samples for Isotope analysis.
Chief scientistLiam Fernand (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Cruise reportRV Cefas Endeavour 12/04 cruise report endeavour12_04.pdf — access key 'C' (0.41 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificNorthern flank of the Dogger Bank
Track chartsRV Cefas Endeavour 12/04 cruise track — endeavour12_04trk.pdf (00 MB) 
Measurements 
Physical oceanography 
CTD stationsQuantity: number of stations = 2
Description: 2 CTDs were performed at the second station.
CTD stationsQuantity: number of stations = 1
Description: At the Oyster grounds a CTD was perfomed.
Subsurface temperature and salinity measurementsQuantity: number of track lines = 2
Description: Scanfish lines were conducted from the Friesian front region to Dogger Bank and then a futher line onto the limit of Dutch waters.
Current profiler (eg ADCP)Quantity: number of recoveries = 2
Description: Moorings were recovered during the cruise.
Current profiler (eg ADCP)Quantity: number of stations = 2
Description: 2 CTDs were performed at the second station.
Current profiler (eg ADCP)Quantity: number of stations = 1
Description: At the Oyster grounds a CTD was perfomed.
Current profiler (eg ADCP)Quantity: number of track lines = 2
Description: Scanfish lines were conducted from the Friesian front region to Dogger Bank and then a futher line onto the limit of Dutch waters.
Chemical oceanography 
OxygenQuantity: number of stations = 2
Description: 2 CTDs were performed at the second station.
Data held at BODC 
Series/Profiles 
29  CTD/STD cast
Moored instrument depth
Raw suspended particulate material concentration sensor output
Density of the water column
Visible waveband radiance and irradiance measurements in the water column
Chlorophyll pigment concentrations in water bodies
Sound velocity and travel time in the water column
Vertical spatial coordinates
Raw fluorometer output
Salinity of the water column
Concentration of suspended particulate material in the water column
Raw light meter output
Temperature of the water column
Reference numbers
Moored instrument depth
Raw suspended particulate material concentration sensor output
Density of the water column
Visible waveband radiance and irradiance measurements in the water column
Chlorophyll pigment concentrations in water bodies
Sound velocity and travel time in the water column
Vertical spatial coordinates
Raw fluorometer output
Salinity of the water column
Concentration of suspended particulate material in the water column
Raw light meter output
Temperature of the water column
Reference numbers

BODC idDate/TimeLocationDoc.
7481902004-10-01 05:59 54° 25' 9" N  4° 2' 12" E  View metadata report for BODC series reference number 748190
7482082004-10-02 03:01 54° 40' 3" N  4° 48' 38" E  View metadata report for BODC series reference number 748208
7482212004-10-02 05:39 54° 52' 1" N  4° 21' 49" E  View metadata report for BODC series reference number 748221
7482332004-10-02 06:21 54° 52' 35" N  4° 22' 6" E  View metadata report for BODC series reference number 748233
7482452004-10-03 03:27 56° 0' 3" N  2° 36' 35" E  View metadata report for BODC series reference number 748245
7482572004-10-03 05:33 55° 50' 1" N  2° 42' 37" E  View metadata report for BODC series reference number 748257
7482692004-10-03 07:22 55° 39' 55" N  2° 51' 38" E  View metadata report for BODC series reference number 748269
7482702004-10-03 17:26 55° 41' 3" N  2° 16' 38" E  View metadata report for BODC series reference number 748270
7482822004-10-03 19:05 55° 45' 47" N  2° 13' 34" E  View metadata report for BODC series reference number 748282
7482942004-10-04 20:09 55° 45' 31" N  1° 47' 35" W  View metadata report for BODC series reference number 748294
7483012004-10-04 20:55 55° 46' 38" N  1° 45' 6" W  View metadata report for BODC series reference number 748301
7483132004-10-04 21:55 55° 48' 21" N  1° 40' 14" W  View metadata report for BODC series reference number 748313
7483252004-10-04 22:59 55° 52' 28" N  1° 30' 31" W  View metadata report for BODC series reference number 748325
7483372004-10-05 03:12 55° 21' 17" N  1° 23' 52" W  View metadata report for BODC series reference number 748337
7483492004-10-05 03:51 55° 22' 24" N  1° 20' 4" W  View metadata report for BODC series reference number 748349
7483502004-10-05 04:50 55° 22' 18" N  1° 10' 20" W  View metadata report for BODC series reference number 748350
7483622004-10-05 05:48 55° 22' 29" N  1° 0' 5" W  View metadata report for BODC series reference number 748362
7483742004-10-06 05:58 54° 59' 57" N  1° 14' 26" W  View metadata report for BODC series reference number 748374
7483862004-10-07 04:40 55° 59' 49" N  0° 30' 22" W  View metadata report for BODC series reference number 748386
7483982004-10-07 06:00 55° 59' 51" N  0° 47' 21" E  View metadata report for BODC series reference number 748398
7484052004-10-07 08:38 56° 0' 4" N  1° 29' 19" E  View metadata report for BODC series reference number 748405
7484172004-10-08 02:15 55° 7' 19" N  1° 13' 3" E  View metadata report for BODC series reference number 748417
7484292004-10-08 03:31 55° 11' 37" N  1° 0' 47" E  View metadata report for BODC series reference number 748429
7484302004-10-08 04:45 55° 15' 32" N  0° 48' 45" E  View metadata report for BODC series reference number 748430
7484422004-10-08 06:00 55° 8' 53" N  0° 37' 48" E  View metadata report for BODC series reference number 748442
7484542004-10-08 08:12 54° 55' 6" N  0° 21' 6" E  View metadata report for BODC series reference number 748454
7484662004-10-08 09:34 54° 53' 1" N  0° 37' 55" E  View metadata report for BODC series reference number 748466
7484782004-10-08 10:42 54° 55' 1" N  0° 52' 36" E  View metadata report for BODC series reference number 748478
7484912004-10-08 11:51 54° 54' 52" N  1° 9' 49" E  View metadata report for BODC series reference number 748491