Cruise inventory

RV Prince Madog PD11/05

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Prince Madog (74P2)
Cruise identifierPD11/05
Cruise period2005-04-05 — 2005-04-07
StatusCompleted
Port of departureMenai Bridge, United Kingdom
Port of returnMenai Bridge, United Kingdom
PurposeResearch
Objectives1. At 53 32N 3 21.8W, half a mile west of the Mersey Bar Light Vessel (site A).
To recover: (a) A sea bed frame for a 600kHz ADCP (waves ADCP); (b) A CEFAS SmartBuoy; (c) A sea bed frame for a 1.2 MHz ADCP (telemetry ADCP); (d) A single point toriod mooring. To deploy: (e) A sea bed frame for a 600 kHz ADCP (waves ADCP); (f) A CEFAS SmartBuoy in a single point mooring.

2. At 53 27N 3 38.6W
To deploy: (g) A sea bed frame for a 600 kHz ADCP (waves ADCP); (h) A marking toriod in a single point mooring.

3. At 53 27N 3 30.2W
To recover: (i) A sea bed frame for a 600 kHz ADCP (Dee ADCP). This was deployed as part of the Dee experiment.

4. To conduct a CTD/LISST survey of 34 sites every 5 miles covering the eastern Irish Sea between the North Wales coast and Blackpool and the Lanashire coast and the Great Orme, to determine the effects of the rivers Dee, Mersey and Ribble on Liverpool Bay. To obtain calibration samples for salinity, transmittance, suspended sediment and for chlorophyll at selected stations. To obtain near surface and bed water samples for nutrient and suspended sediment determination.

5. To collect 10 vertical net hauls at mooring site A.

6. To conduct a 25 hour station at 53 32N 3 21.8W with CTD profiles recorded every half hour and surface and bed water samples taken every hour.
Chief scientistM John Howarth (Proudman Oceanographic Laboratory)
Cruise reportRV Prince Madog PD11/05 cruise report pd11_05.pdf — access key 'C' (0.20 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
SpecificIrish Sea between the North Wales coast and Blackpool and the Lancashire coast and the Great Orme.
Track chartsRV Prince Madog PD11/05 cruise track — pd11_05trk.pdf (00 MB) 
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: activity duration in days = 2
Description: Data recorded every minute. Surface sampling system measuring Solar radiation (W m-2), PAR (μmols / m2s), Air Temperature (ºC), Relative Humidity, Relative Wind Speed (m s-1), Relative Wind Direction (º) - zero indicates wind on the bow, Transmissance, Hull Temperature (ºC), Barometric Pressure (mbar), Fluorescence, Turbidity, Salinity, Minimum Air Temp (ºC), Maximum Air Temp (ºC), Wind Gust (m s-1), GPS Time, Latitude, Longitude, Barometric Pressure Minimum (mbar), Barometric Pressure Maximum (mbar), Conductivity sensor water temperature (ºC). Sea surface temperature, salinity and transmittance were calibrated against the CTD by BODC.
CTD stationsQuantity: number of stations = 3
Description: of CTD grid visited. CTD recorded downwelling PAR light levels (CEFAS light sensor), temperature, conductivity, transmittance, oxygen (no calibration samples) and fluorescence at 24 Hz. Water samples were taken from the near surface and near bed bottles and frozen for nutrient analysis by SOC (nitrate, phosphate, silicate), and also were filtered to determine suspended sediment load and calibrate the CTD transmissometer. Water samples from the second near surface bottle from stations 1, 5 - 9 and 11 were filtered for chlorophyll and suspended sediment determination and some filtrate was preserved with mercuric chloride for nutrient determination by CEFAS.
Optics (eg underwater light levels)Quantity: activity duration in days = 2
Description: Data recorded every minute. Surface sampling system measuring Solar radiation (W m-2), PAR (μmols / m2s), Air Temperature (ºC), Relative Humidity, Relative Wind Speed (m s-1), Relative Wind Direction (º) - zero indicates wind on the bow, Transmissance, Hull Temperature (ºC), Barometric Pressure (mbar), Fluorescence, Turbidity, Salinity, Minimum Air Temp (ºC), Maximum Air Temp (ºC), Wind Gust (m s-1), GPS Time, Latitude, Longitude, Barometric Pressure Minimum (mbar), Barometric Pressure Maximum (mbar), Conductivity sensor water temperature (ºC). Sea surface temperature, salinity and transmittance were calibrated against the CTD by BODC.
Meteorology 
Upper air observationsQuantity: activity duration in days = 2
Description: Data recorded every minute. Surface sampling system measuring Solar radiation (W m-2), PAR (μmols / m2s), Air Temperature (ºC), Relative Humidity, Relative Wind Speed (m s-1), Relative Wind Direction (º) - zero indicates wind on the bow, Transmissance, Hull Temperature (ºC), Barometric Pressure (mbar), Fluorescence, Turbidity, Salinity, Minimum Air Temp (ºC), Maximum Air Temp (ºC), Wind Gust (m s-1), GPS Time, Latitude, Longitude, Barometric Pressure Minimum (mbar), Barometric Pressure Maximum (mbar), Conductivity sensor water temperature (ºC). Sea surface temperature, salinity and transmittance were calibrated against the CTD by BODC.
Data held at BODC 
Series/Profiles 
2  Acoustic doppler current profiler
Sea level
Vertical velocity of the water column (currents)
Metadata parameters
Vertical spatial coordinates
Horizontal velocity of the water column (currents)
Date and time
Sea level
Vertical velocity of the water column (currents)
Metadata parameters
Vertical spatial coordinates
Horizontal velocity of the water column (currents)
Date and time

BODC idDate/TimeLocationDoc.
16226992005-04-05 14:10  — 2005-05-11 11:50 53° 32' 1" N  3° 21' 34" W  View metadata report for BODC series reference number 1622699
16227062005-04-05 10:00  — 2005-05-12 07:30 53° 27' 15" N  3° 38' 43" W  View metadata report for BODC series reference number 1622706
1  Fluorometers
Chlorophyll pigment concentrations in water bodies
Raw fluorometer output
Reference numbers
Date and time
Chlorophyll pigment concentrations in water bodies
Raw fluorometer output
Reference numbers
Date and time

BODC idDate/TimeLocationDoc.
11947302005-04-10 12:30  — 2005-05-11 13:00 53° 31' 59" N  3° 21' 49" W  View metadata report for BODC series reference number 1194730
2  In-situ nutrient analyser
Silicate concentration parameters in the water column
Concentration of suspended particulate material in the water column
Nitrate concentration parameters in the water column
Reference numbers
Date and time
Silicate concentration parameters in the water column
Concentration of suspended particulate material in the water column
Nitrate concentration parameters in the water column
Reference numbers
Date and time

BODC idDate/TimeLocationDoc.
11947542005-04-10 14:00  — 2005-04-19 14:00 53° 31' 59" N  3° 21' 49" W  View metadata report for BODC series reference number 1194754
11947912005-04-22 00:00  — 2005-05-10 00:00 53° 31' 59" N  3° 21' 49" W  View metadata report for BODC series reference number 1194791
4  Moored CTD
Sea level
Electrical conductivity of the water column
Salinity of the water column
Concentration of suspended particulate material in the water column
Temperature of the water column
Reference numbers
Date and time
Sea level
Electrical conductivity of the water column
Salinity of the water column
Concentration of suspended particulate material in the water column
Temperature of the water column
Reference numbers
Date and time

BODC idDate/TimeLocationDoc.
11947292005-04-10 12:30  — 2005-05-11 13:00 53° 31' 59" N  3° 21' 49" W  View metadata report for BODC series reference number 1194729
7019262005-04-05 14:10:03  — 2005-05-11 11:40:03 53° 32' 1" N  3° 21' 34" W  View metadata report for BODC series reference number 701926
7016862005-04-05 10:00:01  — 2005-05-12 07:40 53° 27' 7" N  3° 38' 36" W  View metadata report for BODC series reference number 701686
7018712005-04-05 10:00:03  — 2005-05-12 07:20:03 53° 27' 15" N  3° 38' 43" W  View metadata report for BODC series reference number 701871
1  Nephelometers and optical backscatter sensors
Concentration of suspended particulate material in the water column
Reference numbers
Date and time
Concentration of suspended particulate material in the water column
Reference numbers
Date and time

BODC idDate/TimeLocationDoc.
11947422005-04-10 12:30  — 2005-05-11 13:00 53° 31' 59" N  3° 21' 49" W  View metadata report for BODC series reference number 1194742
2  radiometers
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
Reference numbers
Date and time

BODC idDate/TimeLocationDoc.
11947662005-04-10 12:30  — 2005-05-11 13:00 53° 31' 59" N  3° 21' 49" W  View metadata report for BODC series reference number 1194766
11947782005-04-10 12:30  — 2005-05-11 13:00 53° 31' 59" N  3° 21' 49" W  View metadata report for BODC series reference number 1194778
Discrete samples 
24  CTD frame plus rosette samplerRaw suspended particulate material concentration sensor output
Density of the water column
Transmittance and attenuance of the water column
Visible waveband radiance and irradiance measurements in the water column
Silicate concentration parameters in the water column
Raw fluorometer output
Salinity of the water column
Raw light meter output
Nitrate concentration parameters in the water column
Temperature of the water column
Dissolved oxygen parameters in the water column
Phosphate concentration parameters in the water column