Search the data

Metadata Report for BODC Series Reference Number 1644161


Metadata Summary

Data Description

Data Category CTD or STD cast
Instrument Type
NameCategories
Sea-Bird SBE 43 Dissolved Oxygen Sensor  dissolved gas sensors
Sea-Bird SBE 911plus CTD  CTD; water temperature sensor; salinity sensor
Chelsea Instruments MINITracka II fluorometer  fluorometers
WETLabs C-Star transmissometer  transmissometers
Satlantic Photosynthetically Active Radiation sensor  radiometers
Instrument Mounting lowered unmanned submersible
Originating Country United Kingdom
Originator Dr James Fishwick
Originating Organization Plymouth Marine Laboratory
Processing Status banked
Online delivery of data Download available - Ocean Data View (ODV) format
Project(s) -
 

Data Identifiers

Originator's Identifier 150903_E1
BODC Series Reference 1644161
 

Time Co-ordinates(UT)

Start Time (yyyy-mm-dd hh:mm) 2015-09-03 08:50
End Time (yyyy-mm-dd hh:mm) -
Nominal Cycle Interval 0.25 metres
 

Spatial Co-ordinates

Latitude 50.03475 N ( 50° 2.1' N )
Longitude 4.36720 W ( 4° 22.0' W )
Positional Uncertainty 0.01 to 0.05 n.miles
Minimum Sensor or Sampling Depth 2.0 m
Maximum Sensor or Sampling Depth 73.5 m
Minimum Sensor or Sampling Height -2.1 m
Maximum Sensor or Sampling Height 69.4 m
Sea Floor Depth 71.4 m
Sea Floor Depth Source GEBCO1901
Sensor or Sampling Distribution Variable common depth - All sensors are grouped effectively at the same depth, but this depth varies significantly during the series
Sensor or Sampling Depth Datum Instantaneous - Depth measured below water line or instantaneous water body surface
Sea Floor Depth Datum Chart reference - Depth extracted from available chart
 

Parameters

BODC CODERankUnitsTitle
ACYCAA011DimensionlessSequence number
DEPHPR011MetresDepth (spatial coordinate) relative to water surface in the water body by profiling pressure sensor and conversion to seawater depth using UNESCO algorithm
DOXYSU011Micromoles per litreConcentration of oxygen {O2 CAS 7782-44-7} per unit volume of the water body [dissolved plus reactive particulate phase] by Sea-Bird SBE 43 sensor and no calibration against sample data
FVLTZZ011VoltsRaw signal (voltage) of instrument output by in-situ chlorophyll fluorometer
IRRDPP011MicroEinsteins per square metre per secondDownwelling 2-pi scalar irradiance as photons of electromagnetic radiation (PAR wavelengths) in the water body by 2-pi scalar radiometer
OXYSSU011PercentSaturation of oxygen {O2 CAS 7782-44-7} in the water body [dissolved plus reactive particulate phase] by Sea-Bird SBE 43 sensor and computation from concentration using Benson and Krause algorithm
POPTDR011PercentTransmittance (red light wavelength) per 25cm of the water body by 25cm path length red light transmissometer
PRESPR011DecibarsPressure (spatial coordinate) exerted by the water body by profiling pressure sensor and correction to read zero at sea level
PSALST011DimensionlessPractical salinity of the water body by CTD and computation using UNESCO 1983 algorithm
SIGTPR011Kilograms per cubic metreSigma-theta of the water body by CTD and computation from salinity and potential temperature using UNESCO algorithm
TEMPST011Degrees CelsiusTemperature of the water body by CTD or STD
TOKGPR011Litres per kilogramConversion factor (volume to mass) for the water body by CTD and computation of density (in-situ potential temperature surface pressure) reciprocal from pressure, temperature and salinity

Definition of Rank

  • Rank 1 is a one-dimensional parameter
  • Rank 2 is a two-dimensional parameter
  • Rank 0 is a one-dimensional parameter describing the second dimension of a two-dimensional parameter (e.g. bin depths for moored ADCP data)

Problem Reports

No Problem Report Found in the Database

Western Channel Observatory (WCO) 2015 CTD Data Quality Report for CTD profile and bottle firing, E1 and L4

There are no known data quality issues for the WCO CTD data during 2015.


Data Access Policy

Open Data supplied by Natural Environment Research Council (NERC)

You must always use the following attribution statement to acknowledge the source of the information: "Contains data supplied by Natural Environment Research Council."


Narrative Documents

Sea-Bird Dissolved Oxygen Sensor SBE 43 and SBE 43F

The SBE 43 is a dissolved oxygen sensor designed for marine applications. It incorporates a high-performance Clark polarographic membrane with a pump that continuously plumbs water through it, preventing algal growth and the development of anoxic conditions when the sensor is taking measurements.

Two configurations are available: SBE 43 produces a voltage output and can be incorporated with any Sea-Bird CTD that accepts input from a 0-5 volt auxiliary sensor, while the SBE 43F produces a frequency output and can be integrated with an SBE 52-MP (Moored Profiler CTD) or used for OEM applications. The specifications below are common to both.

Specifications

Housing Plastic or titanium
Membrane

0.5 mil- fast response, typical for profile applications

1 mil- slower response, typical for moored applications

Depth rating

600 m (plastic) or 7000 m (titanium)

10500 m titanium housing available on request

Measurement range 120% of surface saturation
Initial accuracy 2% of saturation
Typical stability 0.5% per 1000 h

Further details can be found in the manufacturer's specification sheet.

Sea-Bird Electronics SBE 911 and SBE 917 series CTD profilers

The SBE 911 and SBE 917 series of conductivity-temperature-depth (CTD) units are used to collect hydrographic profiles, including temperature, conductivity and pressure as standard. Each profiler consists of an underwater unit and deck unit or SEARAM. Auxiliary sensors, such as fluorometers, dissolved oxygen sensors and transmissometers, and carousel water samplers are commonly added to the underwater unit.

Underwater unit

The CTD underwater unit (SBE 9 or SBE 9 plus) comprises a protective cage (usually with a carousel water sampler), including a main pressure housing containing power supplies, acquisition electronics, telemetry circuitry, and a suite of modular sensors. The original SBE 9 incorporated Sea-Bird's standard modular SBE 3 temperature sensor and SBE 4 conductivity sensor, and a Paroscientific Digiquartz pressure sensor. The conductivity cell was connected to a pump-fed plastic tubing circuit that could include auxiliary sensors. Each SBE 9 unit was custom built to individual specification. The SBE 9 was replaced in 1997 by an off-the-shelf version, termed the SBE 9 plus, that incorporated the SBE 3 plus (or SBE 3P) temperature sensor, SBE 4C conductivity sensor and a Paroscientific Digiquartz pressure sensor. Sensors could be connected to a pump-fed plastic tubing circuit or stand-alone.

Temperature, conductivity and pressure sensors

The conductivity, temperature, and pressure sensors supplied with Sea-Bird CTD systems have outputs in the form of variable frequencies, which are measured using high-speed parallel counters. The resulting count totals are converted to numeric representations of the original frequencies, which bear a direct relationship to temperature, conductivity or pressure. Sampling frequencies for these sensors are typically set at 24 Hz.

The temperature sensing element is a glass-coated thermistor bead, pressure-protected inside a stainless steel tube, while the conductivity sensing element is a cylindrical, flow-through, borosilicate glass cell with three internal platinum electrodes. Thermistor resistance or conductivity cell resistance, respectively, is the controlling element in an optimized Wien Bridge oscillator circuit, which produces a frequency output that can be converted to a temperature or conductivity reading. These sensors are available with depth ratings of 6800 m (aluminium housing) or 10500 m (titanium housing). The Paroscientific Digiquartz pressure sensor comprises a quartz crystal resonator that responds to pressure-induced stress, and temperature is measured for thermal compensation of the calculated pressure.

Additional sensors

Optional sensors for dissolved oxygen, pH, light transmission, fluorescence and others do not require the very high levels of resolution needed in the primary CTD channels, nor do these sensors generally offer variable frequency outputs. Accordingly, signals from the auxiliary sensors are acquired using a conventional voltage-input multiplexed A/D converter (optional). Some Sea-Bird CTDs use a strain gauge pressure sensor (Senso-Metrics) in which case their pressure output data is in the same form as that from the auxiliary sensors as described above.

Deck unit or SEARAM

Each underwater unit is connected to a power supply and data logging system: the SBE 11 (or SBE 11 plus) deck unit allows real-time interfacing between the deck and the underwater unit via a conductive wire, while the submersible SBE 17 (or SBE 17 plus) SEARAM plugs directly into the underwater unit and data are downloaded on recovery of the CTD. The combination of SBE 9 and SBE 17 or SBE 11 are termed SBE 917 or SBE 911, respectively, while the combinations of SBE 9 plus and SBE 17 plus or SBE 11 plus are termed SBE 917 plus or SBE 911 plus.

Specifications

Specifications for the SBE 9 plus underwater unit are listed below:

Parameter Range Initial accuracy Resolution at 24 Hz Response time
Temperature -5 to 35°C 0.001°C 0.0002°C 0.065 sec
Conductivity 0 to 7 S m-1 0.0003 S m-1 0.00004 S m-1 0.065 sec (pumped)
Pressure 0 to full scale (1400, 2000, 4200, 6800 or 10500 m) 0.015% of full scale 0.001% of full scale 0.015 sec

Further details can be found in the manufacturer's specification sheet.

Western Channel Observatory (WCO) 2015 CTD Instrumentation for CTD profile and bottle firing

The WCO L4 and E1 sites instrumentation for 2015 is given below:

Make Model Serial number Calibration Date
Sea-Bird SBE19 plus 5216 02/07/2014
SatlanticPAR sensor Satlantic digital linear PAR sensor 0486 27/03/2014
Chelsea Technologies Group Ltd. MINITracka II fluorometer MINITracka II 07-6310-003 24/01/2011
WetLabs C-Star Transmissometer C-Star 25 cm (red) path length CST-1038PR 28/02/2014
Sea-Bird SBE43 Dissolved Oxygen sensor SBE 43 1696 11/06/2014

Chelsea Instruments MINItracka Fluorometer

The MINItracka Fluorometer is an in-situ optical sensor that uses a single high intensity LED light source and, according to the manufacturer, is designed to enhance rejection of ambient daylight. The fluorometer provides a linear response between chlorophyll concentration and fluorometer voltage.

Sensor specifications, current at August 2006, are given in the table below. More information can be found at the manufacturer's specification sheet.

Sensor Specifications

  Chlorophyll-a Chlorophyll-a Rhodamine Amido Rhodamine Fluorescein
Excitation wavelengths 430/30 nm 470/30 nm 470/30 nm 425/30 nm 480/80 nm
Emission wavelength 685/30 nm 685/30 nm 590/45 nm 550/30 nm 530/30 nm
Concentration range 0.03-100 µg l-1 0.03-100 µg l-1 0.03-100 µg l-1 0.04-200 µg l-1 0.03-100 µg l-1
Resolution 0.01 µg l-1 0.01 µg l-1 0.01 µg l-1 0.025 µg l-1 0.01 µg l-1
Calibration standard Chlorophyll-a in acetone Chlorophyll-a in acetone      
  Nephelometer Phycoerythrin Phycocyanin
Excitation wavelengths 470/30 nm 530/30 nm 590/35nm
Emission wavelength 470/30 nm 580/30 nm 645/35 nm
Concentration range 0.04-100 FTU 0.03-100 µg l-1 0.03-100 µg l-1
Resolution 0.01 FTU 0.01 µg l-1 0.01 µg l-1
Mechanical   Electrical  
Body Size 149 mm long x 70 mm dia Input Voltage 7 to 40 VDC
Weight in Air 0.7 Kg Output Voltage 0 to 4 VDC (linear)
Weight in Water 0.15 Kg Power requirements 0.7 W typical
Depth Rating 600 m Signal : Noise 10,000 : 1 @ full scale

WETLabs C-Star transmissometer

This instrument is designed to measure beam transmittance by submersion or with an optional flow tube for pumped applications. It can be used in profiles, moorings or as part of an underway system.

Two models are available, a 25 cm pathlength, which can be built in aluminum or co-polymer, and a 10 cm pathlength with a plastic housing. Both have an analog output, but a digital model is also available.

This instrument has been updated to provide a high resolution RS232 data output, while maintaining the same design and characteristics.

Specifications

Pathlength 10 or 25 cm
Wavelength 370, 470, 530 or 660 nm
Bandwidth

~ 20 nm for wavelengths of 470, 530 and 660 nm

~ 10 to 12 nm for a wavelength of 370 nm

Temperature error 0.02 % full scale °C-1
Temperature range 0 to 30°C
Rated depth

600 m (plastic housing)

6000 m (aluminum housing)

Further details are available in the manufacturer's specification sheet or user guide.

Western Channel Observatory (WCO), L4 and E1, 2015 CTD up-cast profiles Processing Document

Originator's Protocol for Data Acquisition and Analysis

These data were collected using a CTD rig deployed from PML research vessels. The data consists of 61 .asc files containing CTD upcast profiles. There were 17 profiles taken at the E1 site and 44 profiles taken at the L4 site.

Originator's Processing

The raw CTD data were processed using Sea-Bird software. The data were provided in tab delimited format.

BODC Data Processing Procedures

Data were downloaded from the WCO website hosted at the Plymouth Marine Laboratory with bottle firing data as .btl files alongside the CTD profile data. The data were archived under the accession PML160021. Basic checks of the data and metadata were carried out. T he CTD profiles were then transferred to the BODC format and loaded to the database. The BODC parameter mappings are given below:

Originator's Parameter Originator's Short Code Units BODC Parameter Code BODC Units BODC Description Comments
Temperature Temp degC TEMPST01 Degrees Celsius Temperature of the water body by CTD or STD  
Salinity Sal PSU PSALST01 Dimensionless Practical salinity of the water body by CTD and computation using UNESCO 1983 algorithm  
Depth Depth Meters (m) DEPHPR01 Metres Depth below surface of the water body by profiling pressure sensor and converted to seawater depth using UNESCO algorithm.  
Fluorescence (Chlorophyll a) Fluor Voltage (V) FVLTZZ01 Volts Instrument output (voltage) by in-situ chlorophyll fluorometer  
Attenuation CStarTr0 Percentage (%) POPTDR01 Percent Transmittance (red light wavelength) per 25cm of the water body by 25cm path length red light transmissometer.  
Dissolved Oxygen SbeoxyMm/Kg µmol/kg DOXYSU01 Micromoles per kilogram Concentration of oxygen {O2 CAS 7782-44-7} per unit volume of the water body [dissolved plus reactive particulate phase] by Sea-Bird SBE 43 sensor and no calibration against sample data  
PAR PAR µEm-2s-1 IRRDPP01 MicroEinsteins per square metre per second Downwelling 2-pi scalar irradiance as photons (PAR wavelengths) in the water body by 2-pi scalar radiometer  
- - - PRESPR01 Decibars Pressure (spatial co-ordinate) exerted by the water body by profiling pressure sensor and corrected to read zero at sea level.  
- - - SIGTPR01 Kilograms per cubic metre Sigma-theta of the water body by CTD and computation from salinity and potential temperature using UNESCO algorithm  
- - - OXYSSU01 Percent Saturation of oxygen {O2 CAS 7782-44-7} in the water body [dissolved plus reactive particulate phase] by Sea-Bird SBE 43 sensor and computation from concentration using Benson and Krause algorithm  
- - - TOKGPR01 Litres per kilogram Conversion factor (volume to mass) for the water body by CTD and computation of density (in-situ potential temperature surface pressure) reciprocal from pressure, temperature and salinity  

Screening

Data were screened using BODC bespoke visual software, EDSERPLO. Large spikes were flagged as suspect 'M'. This occurred for DOXYSU01, OXYSSU01, PSALST01, TEMPST01, IRRDPP01, POPTDR01, FVLTZZ01, SIGTPR01, TOKGPR01. In addition to this parameters that had values outside their given Limit for Detection (LFM) were automatically flagged suspect 'M' during the transfer process.

References

Benson, B.B. and Krause, D., 1984.The concentration and isotopic fractionation of oxygen dissolved in freshwater and seawater in equilibrium with the atmosphere. Limnol. Oceanogr., 29(3), 620-632.

Fofonoff, N.P. and Millard, R.C., 1983. Algorithms for computations of fundamental properties of seawater. UNESCO Technical Papers in Marine Science No. 44, 53pp.

Satlantic PAR sensor

Basic introduction

PAR (400 - 700 nm) sensor that measures quantum irradiance with near flat spectral response and cosine spatial response. Cosine collectors for in air and in water measurements for 2 depth ratings, 1000 m and 7000 m. Digital and analog output options. Compatible with SeaBird CTD platforms. Tilt and internal temperature measurements carried out for data quality analysis. Max sample rate of 100 Hz, PAR range 0 - 5000 µmol photons m-2 s-1. Cosine error 0-60° <3% and 60-85° <10%

Specifications

Spectrum 400 - 700 nm
PAR Range 0 - 5000 µmol photons m-2 s-1
Spatial Cosine Response
Cosine Error 0° - 60° <3%
60° - 85° <10%
Collector Area 86 mm2
Detector 17 mm2 silicon photodiode
Input Voltage 6 - 28 VDC
Current Draw 17 mA at 12 VDC
Sample Rate 100 Hz Maximum
Digital Output RS-232 ASCII, up to 100 Hz
Analog Signal Output 0.125 - 4.0 V
Analog Signal Scaling linear or logarithmic
Weight (in air) 88 g (plastic) or 182 g (titanium)
Weight (in water) 39 g (plastic) or 133 g (titanium)
Depth Rating 1000 m (plastic) or 7000 m (titanium)
Length 139 mm (with connector) 89 mm (housing)
Diameter 25 mm

More information may be found in the Satlantic PAR brochure


Project Information


No Project Information held for the Series

Data Activity or Cruise Information

Cruise

Cruise Name PQ150903
Departure Date 2015-09-03
Arrival Date 2015-09-03
Principal Scientist(s)Tim Smyth (Plymouth Marine Laboratory)
Ship RV Plymouth Quest

Complete Cruise Metadata Report is available here


Fixed Station Information

Fixed Station Information

Station NameWestern Channel Observatory E1
CategoryCoastal location
Latitude50° 2.00' N
Longitude4° 22.00' W
Water depth below MSL75.0 m

Western Channel Observatory station E1

The Western Channel Observatory (WCO) is situated in the Western English Channel and comprises of sustained long-term observations at a number of stations.

Station E1 is located south-west of Plymouth at 50° 2.00' N, 4° 22.00' W.

More information can be found on the Western Channel Observatory website.

Related Fixed Station activities are detailed in Appendix 1


BODC Quality Control Flags

The following single character qualifying flags may be associated with one or more individual parameters with a data cycle:

Flag Description
Blank Unqualified
< Below detection limit
> In excess of quoted value
A Taxonomic flag for affinis (aff.)
B Beginning of CTD Down/Up Cast
C Taxonomic flag for confer (cf.)
D Thermometric depth
E End of CTD Down/Up Cast
G Non-taxonomic biological characteristic uncertainty
H Extrapolated value
I Taxonomic flag for single species (sp.)
K Improbable value - unknown quality control source
L Improbable value - originator's quality control
M Improbable value - BODC quality control
N Null value
O Improbable value - user quality control
P Trace/calm
Q Indeterminate
R Replacement value
S Estimated value
T Interpolated value
U Uncalibrated
W Control value
X Excessive difference

SeaDataNet Quality Control Flags

The following single character qualifying flags may be associated with one or more individual parameters with a data cycle:

Flag Description
0 no quality control
1 good value
2 probably good value
3 probably bad value
4 bad value
5 changed value
6 value below detection
7 value in excess
8 interpolated value
9 missing value
A value phenomenon uncertain
Q value below limit of quantification

Appendix 1: Western Channel Observatory E1

Related series for this Fixed Station are presented in the table below. Further information can be found by following the appropriate links.

If you are interested in these series, please be aware we offer a multiple file download service. Should your credentials be insufficient for automatic download, the service also offers a referral to our Enquiries Officer who may be able to negotiate access.

Series IdentifierData CategoryStart date/timeStart positionCruise
1087479CTD or STD cast2002-05-16 21:15:0050.033 N, 4.367 WRV Squilla SQ020516
1086882CTD or STD cast2002-06-26 11:06:0050.033 N, 4.367 WUnknown research vessel PML020626
1086894CTD or STD cast2002-07-17 10:25:0050.033 N, 4.367 WUnknown research vessel PML020717
1086901CTD or STD cast2002-08-14 10:55:0050.033 N, 4.367 WUnknown research vessel PML020814
1086913CTD or STD cast2002-10-02 10:50:0050.033 N, 4.367 WUnknown research vessel PML021002
1086925CTD or STD cast2002-10-31 12:05:0050.033 N, 4.367 WUnknown research vessel PML021031
1086937CTD or STD cast2002-12-13 12:14:0050.033 N, 4.367 WUnknown research vessel PML021213
1086949CTD or STD cast2003-01-24 12:44:0050.033 N, 4.367 WUnknown research vessel PML030124
1086950CTD or STD cast2003-02-13 06:10:0050.033 N, 4.367 WUnknown research vessel PML030213
1086962CTD or STD cast2003-03-21 12:32:0050.033 N, 4.367 WUnknown research vessel PML030321
1086974CTD or STD cast2003-04-23 11:22:0050.033 N, 4.367 WUnknown research vessel PML030423
1086986CTD or STD cast2003-05-14 10:56:0050.033 N, 4.367 WUnknown research vessel PML030514
1086998CTD or STD cast2003-06-04 11:00:0050.033 N, 4.367 WUnknown research vessel PML030604
1087001CTD or STD cast2003-06-11 11:43:0050.033 N, 4.367 WUnknown research vessel PML030611
1087013CTD or STD cast2003-06-18 10:50:0050.033 N, 4.367 WUnknown research vessel PML030618
1087025CTD or STD cast2003-06-25 10:20:0050.033 N, 4.367 WUnknown research vessel PML030625
1087037CTD or STD cast2003-07-02 10:49:0050.033 N, 4.367 WUnknown research vessel PML030702
1087049CTD or STD cast2003-07-09 11:20:0050.033 N, 4.367 WUnknown research vessel PML030709
1087050CTD or STD cast2003-08-06 10:41:0050.033 N, 4.367 WUnknown research vessel PML030806
1087062CTD or STD cast2003-09-09 10:32:0050.033 N, 4.367 WUnknown research vessel PML030909
1087074CTD or STD cast2004-08-03 11:07:0050.033 N, 4.367 WUnknown research vessel PML040803
1087086CTD or STD cast2004-08-26 09:36:0050.033 N, 4.367 WUnknown research vessel PML040826
1087098CTD or STD cast2004-11-02 11:10:0050.033 N, 4.367 WUnknown research vessel PML041102
1087105CTD or STD cast2004-12-08 11:31:0050.033 N, 4.367 WUnknown research vessel PML041208
1084771CTD or STD cast2005-02-02 11:35:0050.033 N, 4.367 WUnknown research vessel PML050202
1084783CTD or STD cast2005-03-08 11:06:0050.033 N, 4.367 WUnknown research vessel PML050308
1084795CTD or STD cast2005-03-30 10:16:0050.033 N, 4.367 WUnknown research vessel PML050330
1084802CTD or STD cast2005-05-11 10:25:0050.033 N, 4.367 WUnknown research vessel PML050511
1084814CTD or STD cast2005-06-08 10:56:0050.033 N, 4.367 WUnknown research vessel PML050608
1084826CTD or STD cast2005-06-20 09:07:0050.033 N, 4.367 WUnknown research vessel PML050620
1084838CTD or STD cast2005-07-13 10:32:0050.033 N, 4.367 WUnknown research vessel PML050713
1084851CTD or STD cast2005-08-10 10:39:0050.033 N, 4.367 WUnknown research vessel PML050810
1084863CTD or STD cast2005-08-31 10:37:0050.033 N, 4.367 WUnknown research vessel PML050831
1084875CTD or STD cast2005-09-14 10:07:0050.033 N, 4.367 WUnknown research vessel PML050914
1084887CTD or STD cast2005-09-28 10:36:0050.033 N, 4.367 WUnknown research vessel PML050928
1084899CTD or STD cast2005-11-18 11:14:0050.033 N, 4.367 WUnknown research vessel PML051118
1084906CTD or STD cast2006-01-18 10:56:0050.033 N, 4.367 WUnknown research vessel PML060118
1084918CTD or STD cast2006-02-08 11:56:0050.033 N, 4.367 WUnknown research vessel PML060208
1084931CTD or STD cast2006-03-01 11:14:0050.033 N, 4.367 WUnknown research vessel PML060301
1084943CTD or STD cast2006-03-15 11:02:0050.033 N, 4.367 WUnknown research vessel PML060315
1084955CTD or STD cast2006-10-10 07:45:0050.033 N, 4.367 WUnknown research vessel PML061010
1084967CTD or STD cast2006-11-01 11:25:0050.033 N, 4.367 WUnknown research vessel PML061101
1084979CTD or STD cast2007-02-06 11:12:0050.033 N, 4.367 WUnknown research vessel PML070206
1084980CTD or STD cast2007-03-13 10:43:0050.033 N, 4.367 WUnknown research vessel PML070313
910772CTD or STD cast2007-04-17 10:30:0050.033 N, 4.367 WRV Plymouth Quest PQ070417
910784CTD or STD cast2007-05-01 10:30:0050.033 N, 4.367 WRV Plymouth Quest PQ070501
910796CTD or STD cast2007-06-05 10:07:0050.033 N, 4.367 WRV Plymouth Quest PQ070605
910803CTD or STD cast2007-07-03 10:30:0050.033 N, 4.367 WRV Plymouth Quest PQ070703
910815CTD or STD cast2007-07-31 08:22:0050.033 N, 4.367 WRV Plymouth Quest PQ070731
910827CTD or STD cast2007-09-11 09:06:0050.033 N, 4.372 WRV MBA Sepia MS070911
910839CTD or STD cast2007-11-01 09:16:0050.034 N, 4.361 WRV MBA Sepia MS071101
910840CTD or STD cast2008-04-15 10:30:0050.033 N, 4.369 WRV Plymouth Quest PQ080415
910852CTD or STD cast2008-04-29 10:30:0050.033 N, 4.367 WRV Plymouth Quest PQ080429
910864CTD or STD cast2008-05-13 10:30:0050.033 N, 4.367 WRV Plymouth Quest PQ080513
910876CTD or STD cast2008-05-20 10:30:0050.033 N, 4.367 WRV Plymouth Quest PQ080520
910888CTD or STD cast2008-06-03 10:14:0050.033 N, 4.367 WRV Plymouth Quest PQ080603
910907CTD or STD cast2008-06-17 10:26:0050.034 N, 4.367 WRV Plymouth Quest PQ080617
910919CTD or STD cast2008-07-15 10:30:0050.033 N, 4.367 WRV Plymouth Quest PQ080715
910920CTD or STD cast2008-08-22 10:30:0050.033 N, 4.367 WRV Plymouth Quest PQ080822
910932CTD or STD cast2008-09-16 10:30:0050.033 N, 4.367 WRV Plymouth Quest PQ080916
910944CTD or STD cast2008-10-08 10:43:0050.034 N, 4.364 WRV Plymouth Quest PQ081008
910956CTD or STD cast2008-10-22 10:47:0050.036 N, 4.366 WRV Plymouth Quest PQ081022
910968CTD or STD cast2008-11-04 10:52:0050.034 N, 4.37 WRV Plymouth Quest PQ081104
910981CTD or STD cast2008-12-11 10:30:0050.033 N, 4.367 WRV Plymouth Quest PQ081211
910993CTD or STD cast2009-01-07 10:30:0050.033 N, 4.367 WRV Plymouth Quest PQ090107
911738CTD or STD cast2009-01-27 11:31:0050.033 N, 4.368 WRV Plymouth Quest PQ090127
911751CTD or STD cast2009-02-11 10:23:0050.038 N, 4.37 WRV Plymouth Quest PQ090211
911763CTD or STD cast2009-02-26 10:30:0050.033 N, 4.367 WRV Plymouth Quest PQ090226
911775CTD or STD cast2009-03-11 10:30:0050.033 N, 4.367 WRV Plymouth Quest PQ090311
911787CTD or STD cast2009-04-01 10:35:0050.042 N, 4.375 WRV Plymouth Quest PQ090401
911799CTD or STD cast2009-04-15 10:50:0050.034 N, 4.369 WRV Plymouth Quest PQ090415
911806CTD or STD cast2009-05-28 10:30:0050.033 N, 4.367 WRV Plymouth Quest PQ090528
911818CTD or STD cast2009-06-09 10:30:0050.033 N, 4.367 WRV Plymouth Quest PQ090609
911831CTD or STD cast2009-06-23 10:30:0050.033 N, 4.367 WRV Plymouth Quest PQ090623
911843CTD or STD cast2009-07-23 10:30:0050.034 N, 4.362 WRV Plymouth Quest PQ090723
1047674CTD or STD cast2009-09-21 09:56:0050.0333 N, 4.3667 WRV Plymouth Quest PQ090921
1047698CTD or STD cast2009-09-30 13:55:0050.0333 N, 4.3667 WRV Plymouth Quest PQ090930
1047730CTD or STD cast2009-10-13 11:38:0050.035 N, 4.3717 WRV Plymouth Quest PQ091013
1047810CTD or STD cast2010-01-27 09:43:0050.0343 N, 4.367 WRV Plymouth Quest PQ100127
1047846CTD or STD cast2010-03-17 11:48:0050.0332 N, 4.3668 WRV Plymouth Quest PQ100317
1047625CTD or STD cast2010-04-28 09:45:0050.0333 N, 4.3667 WRV Plymouth Quest PQ100428
1047926CTD or STD cast2010-05-11 09:16:0050.0332 N, 4.3699 WRV Plymouth Quest PQ100511
1047999CTD or STD cast2010-06-17 09:11:0050.0314 N, 4.3671 WRV Plymouth Quest PQ100617
1048014CTD or STD cast2010-06-28 10:07:0050.033 N, 4.3604 WRV Plymouth Quest PQ100628
1048075CTD or STD cast2010-07-20 10:13:0050.0321 N, 4.3572 WRV Plymouth Quest PQ100720
1048131CTD or STD cast2010-08-17 09:29:0050.0406 N, 4.3638 WRV Plymouth Quest PQ100817
1048155CTD or STD cast2010-09-01 09:31:0050.0388 N, 4.3539 WRV Plymouth Quest PQ100901
1048192CTD or STD cast2010-09-21 09:38:0050.0345 N, 4.3684 WRV Plymouth Quest PQ100921
1048247CTD or STD cast2010-10-14 09:51:0050.0352 N, 4.3551 WRV Plymouth Quest PQ101014
1048296CTD or STD cast2010-11-15 10:37:0050.0345 N, 4.3614 WRV Plymouth Quest PQ101115
1048352CTD or STD cast2010-12-14 10:23:0050.0323 N, 4.3673 WRV Plymouth Quest PQ101214
1087480CTD or STD cast2011-01-18 10:13:0050.02974 N, 4.37391 WRV Plymouth Quest PQ110118
1087492CTD or STD cast2011-03-08 10:40:0050.0328 N, 4.3677 WRV Plymouth Quest PQ110308
1087511CTD or STD cast2011-03-21 10:32:0050.03503 N, 4.36074 WRV Plymouth Quest PQ110321
1087523CTD or STD cast2011-04-07 08:50:0050.03261 N, 4.3653 WRV Plymouth Quest PQ110407
1087535CTD or STD cast2011-04-19 09:59:0050.03478 N, 4.36175 WRV Plymouth Quest PQ110419
1087547CTD or STD cast2011-05-17 09:00:0050.03424 N, 4.36527 WRV Plymouth Quest PQ110517
1087559CTD or STD cast2011-06-02 09:07:0050.03253 N, 4.36644 WRV Plymouth Quest PQ110602
1872489Water sample data2011-06-15 04:29:0050.02907 N, 4.38014 WRRS Discovery D366 (D367)
1133262CTD or STD cast2011-06-15 04:37:1750.029 N, 4.3795 WRRS Discovery D366 (D367)
1872570Water sample data2011-06-24 04:19:0050.02622 N, 4.35911 WRRS Discovery D366 (D367)
1133410CTD or STD cast2011-06-24 04:27:0050.026 N, 4.3593 WRRS Discovery D366 (D367)
1087560CTD or STD cast2011-06-28 09:07:0050.02959 N, 4.36784 WRV Plymouth Quest PQ110628
1087572CTD or STD cast2011-07-14 08:47:0050.0346 N, 4.35778 WRV Plymouth Quest PQ110714
1087584CTD or STD cast2011-08-09 08:49:0050.033 N, 4.367 WRV Plymouth Quest PQ110809
1088090CTD or STD cast2011-08-23 08:40:0050.033 N, 4.367 WRV Plymouth Quest PQ110823
1087596CTD or STD cast2011-09-22 08:55:0050.033 N, 4.367 WRV Plymouth Quest PQ110922
1088121CTD or STD cast2011-10-28 09:51:0050.033 N, 4.367 WRV Plymouth Quest PQ111028
1087603CTD or STD cast2011-11-07 10:36:0050.03317 N, 4.36943 WRV Plymouth Quest PQ111107
1087615CTD or STD cast2011-11-22 10:23:0050.03011 N, 4.36706 WRV Plymouth Quest PQ111122
1114670CTD or STD cast2012-01-13 08:25:0050.0338 N, 4.3621 WRV Plymouth Quest PQ120113
1114694CTD or STD cast2012-01-23 11:26:0050.0363 N, 4.3629 WRV Plymouth Quest PQ120123
1114762CTD or STD cast2012-02-28 10:01:0050.0358 N, 4.3645 WRV Plymouth Quest PQ120228
1114798CTD or STD cast2012-03-14 10:13:0050.0338 N, 4.3648 WRV Plymouth Quest PQ120314
1114866CTD or STD cast2012-04-27 08:36:0050.0345 N, 4.3628 WRV Plymouth Quest PQ120427
1114910CTD or STD cast2012-05-16 09:59:0050.0341 N, 4.3675 WRV Plymouth Quest PQ120516
1114971CTD or STD cast2012-06-12 09:14:0050.039 N, 4.3587 WRV Plymouth Quest PQ120612
1115009CTD or STD cast2012-06-26 09:20:0050.0335 N, 4.3656 WRV Plymouth Quest PQ120626
1115034CTD or STD cast2012-07-10 09:13:0050.0335 N, 4.3649 WRV Plymouth Quest PQ120710
1115071CTD or STD cast2012-07-24 08:32:0050.034 N, 4.3701 WRV Plymouth Quest PQ120724
1115102CTD or STD cast2012-08-08 09:24:0050.0377 N, 4.3672 WRV Plymouth Quest PQ120808
1115138CTD or STD cast2012-08-23 09:05:0050.0377 N, 4.3626 WRV Plymouth Quest PQ120823
1115163CTD or STD cast2012-09-04 07:29:0050.0405 N, 4.3649 WRV Plymouth Quest PQ120904
1115199CTD or STD cast2012-09-19 08:08:0050.033 N, 4.367 WRV Plymouth Quest PQ120919
1115231CTD or STD cast2012-10-09 09:13:0050.0357 N, 4.3656 WRV Plymouth Quest PQ121009
1115267CTD or STD cast2012-10-23 09:02:0050.0334 N, 4.3669 WRV Plymouth Quest PQ121023
1115280CTD or STD cast2012-11-06 10:06:0050.0351 N, 4.367 WRV Plymouth Quest PQ121106
1115335CTD or STD cast2012-11-29 09:59:0050.0314 N, 4.3673 WRV Plymouth Quest PQ121129
1115360CTD or STD cast2012-12-11 10:04:0050.0356 N, 4.3625 WRV Plymouth Quest PQ121211
1178059CTD or STD cast2013-01-23 09:58:0050.03451 N, 4.36477 WRV Plymouth Quest PQ130123
1178084CTD or STD cast2013-02-12 10:54:0050.03281 N, 4.36995 WRV Plymouth Quest PQ130212
1178115CTD or STD cast2013-02-27 11:22:0050.03133 N, 4.38012 WRV Plymouth Quest PQ130227
1178152CTD or STD cast2013-03-20 09:59:0050.0348 N, 4.36685 WRV Plymouth Quest PQ130320
1178220CTD or STD cast2013-04-23 08:38:0050.03346 N, 4.36642 WRV Plymouth Quest PQ130423
1178244CTD or STD cast2013-05-01 08:54:0050.03341 N, 4.36597 WRV Plymouth Quest PQ130501
1178281CTD or STD cast2013-05-16 08:47:0050.03502 N, 4.36774 WRV Plymouth Quest PQ130516
1178324CTD or STD cast2013-06-04 08:56:0050.03571 N, 4.37419 WRV Plymouth Quest PQ130604
1178361CTD or STD cast2013-06-18 08:58:0050.03439 N, 4.36617 WRV Plymouth Quest PQ130618
1178397CTD or STD cast2013-07-02 08:36:0050.03556 N, 4.36149 WRV Plymouth Quest PQ130702
1178428CTD or STD cast2013-07-16 08:54:0050.03412 N, 4.36717 WRV Plymouth Quest PQ130716
1178477CTD or STD cast2013-08-07 08:20:0050.03234 N, 4.37056 WRV Plymouth Quest PQ130807
1178508CTD or STD cast2013-08-20 08:24:0050.033 N, 4.367 WRV Plymouth Quest PQ130820
1178545CTD or STD cast2013-09-03 08:28:0050.03293 N, 4.36791 WRV Plymouth Quest PQ130903
1178570CTD or STD cast2013-09-24 08:29:0050.03306 N, 4.36666 WRV Plymouth Quest PQ130924
1178613CTD or STD cast2013-10-15 08:33:0050.0476 N, 4.35584 WRV Plymouth Quest PQ131015
1178650CTD or STD cast2013-11-12 09:41:0050.03198 N, 4.36712 WRV Plymouth Quest PQ131112
1178686CTD or STD cast2013-11-26 09:45:0050.03312 N, 4.36218 WRV Plymouth Quest PQ131126
1643839CTD or STD cast2014-01-30 09:35:0050.03442 N, 4.36268 WRV Plymouth Quest PQ140130
1643840CTD or STD cast2014-02-19 10:50:0050.03496 N, 4.3639 WRV Plymouth Quest PQ140219
1643852CTD or STD cast2014-03-12 09:38:0050.03382 N, 4.36592 WRV Plymouth Quest PQ140312
1643864CTD or STD cast2014-04-10 08:48:0050.03183 N, 4.36628 WRV Plymouth Quest PQ140410
1643876CTD or STD cast2014-04-24 08:38:0050.0335 N, 4.36661 WRV Plymouth Quest PQ140424
1643888CTD or STD cast2014-05-14 08:18:0050.0459 N, 4.35162 WRV Plymouth Quest PQ140514
1643907CTD or STD cast2014-06-05 07:46:0050.033 N, 4.367 WRV Plymouth Quest PQ140605
1643919CTD or STD cast2014-06-17 07:46:0050.033 N, 4.367 WRV Plymouth Quest PQ140617
1643920CTD or STD cast2014-07-02 08:53:0050.03444 N, 4.3731 WRV Plymouth Quest PQ140702
1643932CTD or STD cast2014-07-22 09:10:0050.033 N, 4.367 WRV MBA Sepia MS140722
1643944CTD or STD cast2014-08-19 08:47:0050.03562 N, 4.36697 WRV Plymouth Quest PQ140819
1643956CTD or STD cast2014-09-02 08:49:0050.03324 N, 4.36759 WRV Plymouth Quest PQ140902
1643968CTD or STD cast2014-09-16 08:20:0050.03498 N, 4.36468 WRV Plymouth Quest PQ140916
1643981CTD or STD cast2014-09-30 08:36:0050.03714 N, 4.36779 WRV Plymouth Quest PQ140930
1643993CTD or STD cast2014-10-14 09:03:0050.03378 N, 4.36309 WRV Plymouth Quest PQ141014
1644007CTD or STD cast2014-11-18 09:26:0050.03433 N, 4.3676 WRV Plymouth Quest PQ141118
1644019CTD or STD cast2014-12-01 09:33:0050.03798 N, 4.37184 WRV Plymouth Quest PQ141201
1644683CTD or STD cast2015-01-22 10:38:2450.03118 N, 4.3715 WRV Plymouth Quest PQ150122
1644020CTD or STD cast2015-02-10 09:46:0550.03605 N, 4.36016 WRV Plymouth Quest PQ150210
1644032CTD or STD cast2015-03-10 09:42:4550.03139 N, 4.36569 WRV Plymouth Quest PQ150310
1644044CTD or STD cast2015-03-25 09:21:5450.03282 N, 4.36254 WRV Plymouth Quest PQ150325
1644056CTD or STD cast2015-04-09 09:17:5550.03342 N, 4.36362 WRV Plymouth Quest PQ150409
1644068CTD or STD cast2015-04-30 09:19:3050.0346 N, 4.36522 WRV Plymouth Quest PQ150430
1644081CTD or STD cast2015-05-21 08:21:2950.03374 N, 4.35879 WRV Plymouth Quest PQ150521
1644093CTD or STD cast2015-06-04 09:43:4750.03603 N, 4.35939 WRV Plymouth Quest PQ150604
1644100CTD or STD cast2015-06-16 09:59:5550.03446 N, 4.37177 WRV Plymouth Quest PQ150616
1644112CTD or STD cast2015-07-01 08:50:0950.03814 N, 4.37042 WRV Plymouth Quest PQ150701
1644124CTD or STD cast2015-07-15 10:18:4350.03389 N, 4.36518 WRV Plymouth Quest PQ150715
1644136CTD or STD cast2015-07-30 10:11:2250.03318 N, 4.36619 WRV Plymouth Quest PQ150730
1644148CTD or STD cast2015-08-11 10:17:5950.0316 N, 4.36984 WRV Plymouth Quest PQ150811
1644173CTD or STD cast2015-09-18 08:40:0650.03681 N, 4.35722 WRV Plymouth Quest PQ150918
1644185CTD or STD cast2015-10-20 09:29:0250.03406 N, 4.36884 WRV Plymouth Quest PQ151020
1644197CTD or STD cast2015-11-26 10:10:4850.03348 N, 4.37453 WRV Plymouth Quest PQ151126