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- 8188
RV Prince Madog PD29/06
Cruise summary report
Cruise Info. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Ship name (ship code) | RV Prince Madog (74P2) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Cruise identifier | PD29/06 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Cruise period | 2006-09-21 — 2006-09-23 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Status | Completed | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Port of departure | Menai Bridge, United Kingdom | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Port of return | Menai Bridge, United Kingdom | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Purpose | Research | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Objectives | Objectives
1) At 53 degrees 32 minutes N 3 degrees 21.8 minutes W, half a mile west of the Mersey Bar Light Vessel (site A) To recover: (a) A sea bed frame for a 600 kHz ADCP (waves ADCP) to measure the mean current profile, pressures and directional waves (b) A CEFAS SmartBuoy (with cellulose rope) in a single point mooring with Sea-Bird MicroCAT temperature, conductivity loggers at 5m and 10m below the surface (c) A sea bed frame for a nutrient analyser measuring nitrate and phosphate four times a semi-diurnal tidal cycle. To deploy: (d) A sea bed frame for a 600 kHz ADCP (waves ADCP) to measure the mean current profile, pressures and directional waves (e) A CEFAS SmartBuoy (with cellulose bags) in a single point mooring with Sea-Bird MicroCAT temperature, conductivity loggers at 5m and 10m below the surface. 2) At 53 degrees 27 minutes N 3 degrees 38.6 minutes W (site 21, second site, B) To recover: (f) A sea bed frame for a 600 kHz ADCP (waves ADCP) to measure the mean current profile, pressures and directional waves (g) A CEFAS SmartBuoy (with cellulose rope and trace metal monitor) in a single point mooring. To deploy: (h) A sea bed frame for a 600 kHz ADCP (waves ADCP) to measure the mean current profile, pressures and directional waves (i) A CEFAS SmartBuoy (with cellulose bags) in a single point mooring. 3. 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 Lancashire coast and the Great Orme, to determine the effects of the rivers Dee, Mersey and Ribble on Liverpool Bay. 4. To obtain calibration samples for salinity, transmittance, suspended sediment and for chlorophyll at selected stations. 5. To obtain near surface and bed water samples for nutrient and suspended sediment determination. 6. To obtain trace metal water samples at sites 12, 13, 20, 21, 22, 23, 24, 25 and two sites furthest away from the coast (28, 29). 7. To collect 10 vertica | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Chief scientist | Phil J Knight (Proudman Oceanographic Laboratory) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Project | POL Coastal Observatory | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Coordinating body | Natural Environment Research Council (NERC) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Cruise report | (0.18 MB) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Ocean/sea areas | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General | Irish Sea and St. George's Channel | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Specific | Liverpool Bay and eastern Irish Sea | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Track charts | (0.10 MB) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Measurements | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Physical oceanography | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Water bottle stations | Quantity: number of stations = 37 Description: Water samples were taken from a near bed bottle for calibration of the CTD salinity data. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
CTD stations | Quantity: number of stations = 37 Description: The Sea-Bird 911 CTD recorded downwelling temperature and conductivity 3 m above the bed. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
CTD stations | Quantity: number of stations = 37 Description: Sea surface temperature, salinity and transmittance were calibrated against the CTD by BODC. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Transparency (eg transmissometer) | Quantity: number of stations = 35 Description: The Sea-Bird 911 CTD recorded downwelling transmittance 3 m above the bed. Water samples were taken from the near surface and near bed bottles were filtered to determine suspended sediment load and calibrate the CTD transmissometer | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Optics (eg underwater light levels) | Quantity: number of stations = 35 Description: The Sea-Bird 911 CTD recorded downwelling PAR light levels 3 m above the bed | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Chemical oceanography | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Oxygen | Quantity: number of stations = 35 Description: The Sea-Bird 911 CTD recorded downwelling oxygen (no calibration samples) 3 m above the bed | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Phosphate | Quantity: number of stations = 35 Description: Water samples were taken from the near surface and near bed bottles and frozen for nutrient analysis by NOC | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Nitrate | Quantity: number of stations = 35 Description: Water samples were taken from the near surface and near bed bottles and frozen for nutrient analysis by NOC | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Silicate | Quantity: number of stations = 35 Description: Water samples were taken from the near surface and near bed bottles and frozen for nutrient analysis by NOC | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Contamination | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Suspended matter | Quantity: number of stations = 35 Description: The Sea-Bird 911 CTD recorded downwelling transmittance 3 m above the bed. Water samples were taken from the near surface and near bed bottles were filtered to determine suspended sediment load and calibrate the CTD transmissometer | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Biology and fisheries | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: number of stations = 35 Description: The Sea-Bird 911 CTD recorded downwelling fluorescence at 24 Hz 3 m above the bed. Water samples from the second near surface bottle from stations 1 and 21 were filtered for chlorophyll determination | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Meteorology | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Other meteorological measurements | Quantity: activity duration in days = 3 Description: parameters recorded every minute by the WS Oceans surface sampling system 3 m below sea level: Date, Solar Radiation, PAR, Air Temperature, Relative Humidity, Relative Wind Speed, Relative Wind Direction (zero indicates wind on the bow), Transmissance, Hull Temperature, Barometric Pressure, Fluorescence, Turbidity, Salinity, Minimum Air Temp, Maximum Air Temp, Wind Gust, GPS Time, Latitude, Longitude, Barometric Pressure Minimum, Barometric Pressure Maximum, Conductivity sensor water temperature. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Moorings, landers, buoys | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Physical oceanography | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
CTD stations | 53° 31' 59" N 3° 21' 47" W — SmartBuoy Site A: The CEFAS SmartBuoy Mooring fitted with surface CTD. Recovery and Deployment | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Optics (eg underwater light levels) | 53° 31' 59" N 3° 21' 47" W — SmartBuoy Site A: The CEFAS SmartBuoy Mooring is fitted with light sensors at 1 and 2 m below the surface. Recovery and Deployment | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Current meters | 53° 32' 1" N 3° 21' 31" W — Site A: SonTek ADV (Acoustic Doppler Velocimeter); ADV Logger 258 Sensor height above bed 1.305m. Sample rate 16Hz; burst interval 3600s; samples in each burst 19200; burst length 1200s. Recovery and Deployment | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Current profiler (eg ADCP) | 53° 32' 1" N 3° 21' 31" W — Site A: Waves ADCP 600 kHz RDI 2391. Mode 1: 100 pings every 10 minutes (velocity standard deviation 0.007 m s-1). 35 x 1 m bins (2.65-36.65 m above the bed). Fitted with a pressure sensor and 1 Gbyte PCMCIA memory; hourly wave recording enabled. Recovery and Deployment | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Current profiler (eg ADCP) | 53° 26' 57" N 3° 38' 39" W — Site B: Telemetry toroid ADCP 1200 kHz RDI 0572. Mode 1: 100 pings every 10 minutes (velocity standard deviation 0.003 m s-1). 30 x 1 m bins (2.15-31.15 m above the bed). LinkQuest acoustic modem set for transmission of ADCP data every hour. Recovery and Deployment | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Current profiler (eg ADCP) | 53° 26' 58" N 3° 38' 37" W — Site B: Waves ADCP 600 kHz RDI 3644Mode 1: 100 pings every 10 minutes (velocity standard deviation 0.007 m s-1). 35 x 1 m bins (2.65 - 36.65 m above the bed). Fitted with a pressure sensor and 1Gbyte PCMCIA memory; hourly wave recording enabled. Recovery and Deployment | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Surface drifters/drifting buoys | 53° 23' 24" N 3° 14' 24" W — Wave buoy (Hilbre Channel) Deployment | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Surface drifters/drifting buoys | 53° 27' 2" N 3° 38' 26" W — Site B: The CEFAS SmartBuoy Mooring is fitted with a surface CTD (including turbidity and fluorescence sensors). The frame was fitted with a rope loop for the determination of bacterial degradation and a trace metal monitor. Recovery and Deployment | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Sea level (inc. bot. press., inverted echosounder) | 53° 32' 1" N 3° 21' 31" W — Site A: Sea-Bird 16plus S/N 4596 on base of frame with pumped conductivity sensor underneath. SeaPoint turbidity sensor S/N 10487 taped to roll bar; set up for 0 - 125 FTU range. Sample interval 600 s; digiquartz integration time 40 s, range 400; pump 0.5s, 1 s delay. Samples = 5642. Recovery and Deployment | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Sea level (inc. bot. press., inverted echosounder) | 53° 26' 58" N 3° 38' 37" W — Site B: Sea-Bird 16plus S/N 4736 on base of frame with pumped conductivity sensor underneath. SeaPoint turbidity sensor taped to roll bar S/N 10490; set up for 0 - 125 FTU range. Sample interval 600 s; digiquartz integration time 40s, range 400; run pump 0.5s, 1 s delay. 5638 samples. Recovery and Deployment | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Other physical oceanographic measurements | 53° 31' 59" N 3° 21' 47" W — SmartBuoy Site A: Sea-Bird MicroCAT temperature and conductivity recorder Serial number 2081 at 10 m below the surface. Sample interval 600s. 5521 samples. Serial number 2010 at 5 m below the surface. Sample interval 600s. 5527 samples. Recovery and Deployment | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Chemical oceanography | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Oxygen | 53° 31' 59" N 3° 21' 47" W — The CEFAS SmartBuoy Mooring is fitted with a water sampler which obtains water samples once per day for oxygen. (Aanderaa Optode). Recovery and Deployment | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Phosphate | 53° 32' 0" N 3° 21' 45" W — Site A: Ecolab nutrient analyser measuring nitrate and phosphate four times in a semi-diurnal tidal cycle. Nutrient frame, Recovery | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Nitrate | 53° 32' 0" N 3° 21' 45" W — Site A: Ecolab nutrient analyser measuring nitrate and phosphate four times in a semi-diurnal tidal cycle. Nutrient frame, Recovery | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Silicate | 53° 31' 59" N 3° 21' 47" W — SmartBuoy Site A: The CEFAS SmartBuoy Mooring is fitted with a water sampler which obtains water samples once per day for laboratory nutrient (TOXN and silicate) Recovery and Deployment | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Biology and fisheries | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Phytoplankton pigs (eg chlorophyll, fluorescence) | 53° 31' 59" N 3° 21' 47" W — SmartBuoy Site A: The CEFAS SmartBuoy Mooring is fitted with a fluorometer (SeaPoint) and for chlorophyll determination. Recovery and Deployment | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Geology and geophysics | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
In-situ seafloor measurement/sampling | 53° 31' 59" N 3° 21' 47" W — SmartBuoy Site A: The CEFAS SmartBuoy Mooring is fitted with an in situ NAS2E nutrient analyzer. The frame was fitted with a rope loop for the determination of bacterial degradation. Recovery and Deployment | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Data held at BODC | Get data | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Series/Profiles | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
2 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
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18 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 Ammonium and ammonia concentration parameters in water bodies 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 Ammonium and ammonia concentration parameters in water bodies Nitrate concentration parameters in the water column Phaeopigment concentrations in the water column Quality control flags Chlorophyll pigment concentrations in water bodies
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2 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
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1 In-situ dissolved gas analyser | Reference numbers Date and time Dissolved oxygen parameters in the water column
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1 In-situ nutrient analyser | Reference numbers Date and time Nitrate concentration parameters in the water column
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2 Moored CTD | Reference numbers Date and time Salinity of the water column Temperature of the water column Reference numbers Date and time Salinity of the water column Temperature of the water column
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2 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
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1 Surface water sample (unspecified) | Reference numbers Date and time Silicate concentration parameters in the water column Nitrate concentration parameters in the water column Reference numbers Date and time Silicate concentration parameters in the water column Nitrate concentration parameters in the water column
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2 radiometers | Reference numbers Date and time Light extinction and diffusion coefficients Visible waveband radiance and irradiance measurements in the water column Reference numbers Date and time Light extinction and diffusion coefficients Visible waveband radiance and irradiance measurements in the water column
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Discrete samples | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
38 CTD frame plus rosette sampler | Transmittance 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 Dissolved oxygen parameters in the water column Concentration of suspended particulate material in the water column Visible waveband radiance and irradiance measurements in the water column Silicate concentration parameters in the water column Density of the water column Ammonium and ammonia concentration parameters in water bodies Raw light meter output 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 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
4 Instrument mooring |