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RV Prince Madog PD02/03

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Prince Madog (74P2)
Cruise identifierPD02/03
Cruise period2003-01-23 — 2003-01-24
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 sea bed frame for a 600 kHz ADCP to measure the mean current profile, pressures and
directional waves.
c) A CEFAS SmartBuoy in a single point mooring with an Aanderaa temperature and
conductivity logger at 10 m below the surface.
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 (recovery a).
e) A sea bed frame fitted with a 1.2 MHz ADCP, SonTek ADV, LISST-100 and Sontek
coherent Doppler on loan.
f) A CEFAS SmartBuoy in a single point mooring with an Aanderaa temperature and
conductivity logger at 10 m below the surface.
g) A development spar buoy.
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.
Chief scientistM John Howarth (Proudman Oceanographic Laboratory)
Cruise programmeRV Prince Madog PD02/03 cruise programme pd01-05_03.pdf  (0.16 MB) 
Cruise reportRV Prince Madog PD02/03 cruise report pd02_03.pdf (0.11 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
Measurements 
Physical oceanography 
CTD stationsDescription: CTD survey took place during the cruise. No. of profiles not noted.
Subsurface temperature and salinity measurementsDescription: CTD survey took place during the cruise. No. of profiles not noted.
Subsurface temperature and salinity measurementsDescription: At Puffin Island surface sampling was taken. No. of samples not noted.
Current profiler (eg ADCP)Description: ADCP was released a number of times throughout the group. No. of deployments not noted.
Data held at BODC Get data
Discrete samples 
26  CTD frame plus rosette samplerTransmittance and attenuance of the water column
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column
Salinity of 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
Ammonium and ammonia concentration parameters in water bodies
Nitrate concentration parameters in the water column
Phaeopigment concentrations in the water column
Raw suspended particulate material concentration sensor output
Raw fluorometer output
Chlorophyll pigment concentrations in water bodies
2  Instrument mooring