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RV Prince Madog PD35/02

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Prince Madog (74P2)
Cruise identifierPD35/02
Cruise period2002-12-12 — 2002-12-13
StatusCompleted
Port of departureMenai Bridge, United Kingdom
Port of returnMenai Bridge, United Kingdom
PurposeResearch
Objectives1. At 53° 32' N 3° 21.8' W, half a mile west of the Mersey Bar Light Vessel -
To recover
a) A sea bed frame for a 600 kHz ADCP to measure the mean current profile and pressures.
A pressure recorder, a transmissometer / conductivity / temperature logger and a SeaBird
MicroCat are fitted to the frame.
B) A CEFAS SmartBuoy in a single point mooring with an Aanderaa temperature and
conductivity logger at 10 m below the surface.
C) A CEFAS Datawell directional wave recorder (single point mooring). This recovery was
necessary to change a section of the mooring and to change the sampling scheme to record
statistics only so that the logger would last 6 months.

To deploy
d) A sea bed frame for a 600 kHz ADCP to measure the mean current profile and pressures.
A pressure recorder, a transmissometer / conductivity / temperature logger and a SeaBird
MicroCat are also fitted to the frame.
E) A sea bed frame for a 600 kHz ADCP (recovery 'a') to measure the mean current profile,
pressures and directional waves.
F) A CEFAS SmartBuoy in a single point mooring with an Aanderaa temperature and
conductivity logger at 10 m below the surface.
G) A CEFAS Datawell directional wave recorder (recovery 'c'), single point mooring.
2. To conduct a CTD / LISST survey of 34 stations every 5 miles covering the eastern Irish
Sea between the North Wales coast and Blackpool and the Lancashire coast and the Great Orme, to determine the effects of the rivers Dee, Mersey and Ribble on Liverpool Bay. To obtain calibration samples for suspended sediment at all stations and for chlorophyll at selected stations.

All of the mooring objectives were accomplished and 31 out of 34 CTD sites visited
Chief scientistM John Howarth (Proudman Oceanographic Laboratory)
ProjectLiverpool Bay Coastal Observatory
Coordinating bodyProudman Oceanographic Laboratory
Cruise reportRV Prince Madog PD35/02 cruise report pd35_02.pdf (0.11 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
Measurements 
Physical oceanography 
Water bottle stationsQuantity: number of stations = 8
Description: Water samples filtered for chlorophyll and suspended sediment determination.
CTD stationsQuantity: number of stations = 32
Contamination 
Suspended matterQuantity: number of stations = 31
Description: surveyed using LISST-100 particle sizer.
Moorings, landers, buoys 
Physical oceanography 
Current profiler (eg ADCP)53° 31' 59" N  3° 21' 40" W — A sea bed frame for a 600 kHz ADCP to measure the mean current profile and pressures was deployed 12/12/2002.
Current profiler (eg ADCP)53° 31' 59" N  3° 21' 21" W — A sea bed frame for a 600 kHz ADCP to measure the mean current profile, pressures and directional waves was deployed 13/12/2002.
Current profiler (eg ADCP)53° 32' 2" N  3° 21' 44" W — A sea bed frame for a 600 kHz ADCP was recovered 12/12/2002 having measured the mean current profile and pressures.
Instrumented wave measurements53° 31' 54" N  3° 21' 54" W — A CEFAS Datawell directional wave recorder was recovered 12/12/2002.
Instrumented wave measurements53° 31' 53" N  3° 22' 17" W — A CEFAS Datawell directional wave recorder in a single point mooring was deployed 14/12/2002.
Other physical oceanographic measurements53° 31' 55" N  3° 22' 4" W — A CEFAS SmartBuoy in a single point mooring was recovered 13/12/2002.
Other physical oceanographic measurements53° 31' 55" N  3° 22' 27" W — A CEFAS SmartBuoy in a single point mooring was deployed 12/12/2002.
Data held at BODC Get data
Series/Profiles 
1  Acoustic doppler current profiler
Date and time
Vertical spatial coordinates
Vertical velocity of the water column (currents)
Horizontal velocity of the water column (currents)
Metadata parameters
Sea level
Date and time
Vertical spatial coordinates
Vertical velocity of the water column (currents)
Horizontal velocity of the water column (currents)
Metadata parameters
Sea level

BODC idDate/TimeLocationDoc.
16236782002-12-12 15:45  — 2003-01-23 13:15 53° 32' 2" N  3° 21' 44" W  View metadata report for BODC series reference number 1623678
19  Bottle station
Reference numbers
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column
Vertical spatial coordinates
Silicate concentration parameters in the water column
Nitrate concentration parameters in the water column
Phaeopigment concentrations in the water column
Quality control flags
Chlorophyll pigment concentrations in water bodies
Reference numbers
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column
Vertical spatial coordinates
Silicate concentration parameters in the water column
Nitrate concentration parameters in the water column
Phaeopigment concentrations in the water column
Quality control flags
Chlorophyll pigment concentrations in water bodies

BODC idDate/TimeLocationDoc.
16676212002-12-12 19:11 53° 36' 58" N  3° 13' 55" W  View metadata report for BODC series reference number 1667621
13146602002-12-12 11:45 53° 31' 43" N  3° 22' 23" W  View metadata report for BODC series reference number 1314660
16676082002-12-12 18:05 53° 27' 3" N  3° 14' 27" W  View metadata report for BODC series reference number 1667608
16676452002-12-12 21:52 53° 47' 15" N  3° 22' 22" W  View metadata report for BODC series reference number 1667645
16676572002-12-12 22:31 53° 42' 13" N  3° 22' 8" W  View metadata report for BODC series reference number 1667657
16676692002-12-12 23:10 53° 37' 17" N  3° 22' 13" W  View metadata report for BODC series reference number 1667669
16675902002-12-12 11:45 53° 31' 43" N  3° 22' 23" W  View metadata report for BODC series reference number 1667590
16676332002-12-12 21:10 53° 51' 36" N  3° 21' 56" W  View metadata report for BODC series reference number 1667633
16676822002-12-13 00:41 53° 26' 58" N  3° 22' 48" W  View metadata report for BODC series reference number 1667682
13147032002-12-12 21:52 53° 47' 15" N  3° 22' 22" W  View metadata report for BODC series reference number 1314703
13146722002-12-12 18:05 53° 27' 3" N  3° 14' 27" W  View metadata report for BODC series reference number 1314672
13147402002-12-13 10:10 53° 32' 19" N  3° 22' 56" W  View metadata report for BODC series reference number 1314740
16676942002-12-13 10:10 53° 32' 19" N  3° 22' 56" W  View metadata report for BODC series reference number 1667694
13146962002-12-12 21:10 53° 51' 36" N  3° 21' 56" W  View metadata report for BODC series reference number 1314696
13147152002-12-12 22:31 53° 42' 13" N  3° 22' 8" W  View metadata report for BODC series reference number 1314715
13147392002-12-13 00:41 53° 26' 58" N  3° 22' 48" W  View metadata report for BODC series reference number 1314739
16676702002-12-12 23:58 53° 31' 58" N  3° 22' 53" W  View metadata report for BODC series reference number 1667670
13146842002-12-12 19:11 53° 36' 58" N  3° 13' 55" W  View metadata report for BODC series reference number 1314684
13147272002-12-12 23:10 53° 37' 17" N  3° 22' 13" W  View metadata report for BODC series reference number 1314727
1  Bottom pressure sensor tide gauge
Reference numbers
Date and time
Temperature of the water column
Sea level
Reference numbers
Date and time
Temperature of the water column
Sea level

BODC idDate/TimeLocationDoc.
6460892002-12-12 15:49:40  — 2003-01-23 13:19:40 53° 32' 2" N  3° 21' 44" W  View metadata report for BODC series reference number 646089
1  Fluorometers
Reference numbers
Date and time
Raw fluorometer output
Chlorophyll pigment concentrations in water bodies
Reference numbers
Date and time
Raw fluorometer output
Chlorophyll pigment concentrations in water bodies

BODC idDate/TimeLocationDoc.
11932772002-12-12 17:00  — 2003-01-23 16:00 53° 31' 55" N  3° 22' 27" W  View metadata report for BODC series reference number 1193277
1  In-situ nutrient analyser
Reference numbers
Date and time
Nitrate concentration parameters in the water column
Reference numbers
Date and time
Nitrate concentration parameters in the water column

BODC idDate/TimeLocationDoc.
11932902002-12-12 20:00  — 2003-01-23 16:00 53° 31' 55" N  3° 22' 27" W  View metadata report for BODC series reference number 1193290
2  Moored CTD
Reference numbers
Date and time
Salinity of the water column
Temperature of the water column
Electrical conductivity of the water column
Sea level
Reference numbers
Date and time
Salinity of the water column
Temperature of the water column
Electrical conductivity of the water column
Sea level

BODC idDate/TimeLocationDoc.
11932652002-12-12 17:00  — 2003-01-23 16:00 53° 31' 55" N  3° 22' 27" W  View metadata report for BODC series reference number 1193265
6462502002-12-12 15:40:01  — 2003-01-23 13:10 53° 32' 2" N  3° 21' 44" W  View metadata report for BODC series reference number 646250
1  Nephelometers and optical backscatter sensors
Reference numbers
Date and time
Concentration of suspended particulate material in the water column
Reference numbers
Date and time
Concentration of suspended particulate material in the water column

BODC idDate/TimeLocationDoc.
11932892002-12-12 17:00  — 2003-01-23 16:00 53° 31' 55" N  3° 22' 27" W  View metadata report for BODC series reference number 1193289
2  Paddle wheel current meter
Reference numbers
Transmittance and attenuance of the water column
Date and time
Salinity of the water column
Temperature of the water column
Electrical conductivity of the water column
Sea level
Reference numbers
Transmittance and attenuance of the water column
Date and time
Salinity of the water column
Temperature of the water column
Electrical conductivity of the water column
Sea level

BODC idDate/TimeLocationDoc.
6463302002-12-12 15:45  — 2003-01-23 13:15 53° 32' 2" N  3° 21' 44" W  View metadata report for BODC series reference number 646330
6462372002-12-12 16:55  — 2003-01-23 16:25 53° 31' 55" N  3° 22' 27" W  View metadata report for BODC series reference number 646237
2  radiometers
Reference numbers
Date and time
Visible waveband radiance and irradiance measurements in the water column
Reference numbers
Date and time
Visible waveband radiance and irradiance measurements in the water column

BODC idDate/TimeLocationDoc.
11998752002-12-12 17:00  — 2003-01-23 16:00 53° 31' 55" N  3° 22' 27" W  View metadata report for BODC series reference number 1199875
11998872002-12-12 17:00  — 2003-01-23 16:00 53° 31' 55" N  3° 22' 27" W  View metadata report for BODC series reference number 1199887
Discrete samples 
33  CTD frame plus rosette samplerTransmittance and attenuance of the water column
Nitrite concentration parameters in the water column
Salinity of the water column
Phosphate concentration parameters in the water column
Temperature of the water column
Concentration of suspended particulate material in the water column
Silicate concentration parameters in the water column
Density of the water column
Nitrate concentration parameters in the water column
Phaeopigment concentrations in the water column
Raw fluorometer output
Chlorophyll pigment concentrations in water bodies
2  Instrument mooring