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Metadata Report for BODC Series Reference Number 1743054


Metadata Summary

Data Description

Data Category Currents -subsurface Eulerian
Instrument Type
NameCategories
Nortek Aquadopp 6000 3D Doppler current meter  current meters; water temperature sensor
Instrument Mounting subsurface mooring
Originating Country United Kingdom
Originator Mr Christian Buckingham
Originating Organization University of Southampton School of Ocean and Earth Science
Processing Status banked
Online delivery of data Download available - Ocean Data View (ODV) format
Project(s) OSMOSIS
 

Data Identifiers

Originator's Identifier AQUADOPPAQUADOPP_SE-INNER_288M_SN9909
BODC Series Reference 1743054
 

Time Co-ordinates(UT)

Start Time (yyyy-mm-dd hh:mm) 2012-09-05 21:50
End Time (yyyy-mm-dd hh:mm) 2013-09-07 10:20
Nominal Cycle Interval 600.0 seconds
 

Spatial Co-ordinates

Latitude 48.68033 N ( 48° 40.8' N )
Longitude 16.17400 W ( 16° 10.4' W )
Positional Uncertainty 0.0 to 0.01 n.miles
Minimum Sensor or Sampling Depth 288.0 m
Maximum Sensor or Sampling Depth 288.0 m
Minimum Sensor or Sampling Height 4585.33 m
Maximum Sensor or Sampling Height 4585.33 m
Sea Floor Depth 4873.33 m
Sea Floor Depth Source GEBCO1401
Sensor or Sampling Distribution Fixed common depth - All sensors are grouped effectively at the same depth which is effectively fixed for the duration of 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
AADYAA011DaysDate (time from 00:00 01/01/1760 to 00:00 UT on day)
AAFDZZ011DaysTime (time between 00:00 UT and timestamp)
ACYCAA011DimensionlessSequence number
HEADCM011DegreesOrientation (horizontal relative to true north) of measurement device {heading}
LCEWEL011Centimetres per secondEastward velocity of water current (Eulerian measurement) in the water body by in-situ current meter
LCNSEL011Centimetres per secondNorthward velocity of water current (Eulerian measurement) in the water body by in-situ current meter
PRESPS011DecibarsPressure (measured variable) exerted by the water body by fixed in-situ pressure sensor and corrected to read zero at sea level
PTCHFG011DegreesOrientation (pitch) of measurement platform by triaxial fluxgate compass
ROLLFG011DegreesOrientation (roll angle) of measurement platform by triaxial fluxgate compass
SVELCV011Metres per secondSound velocity in the water body by computation from temperature and salinity by unspecified algorithm
TEMPPR011Degrees CelsiusTemperature of the water body

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

From examination of the periods when the recorded pressure is significantly greater than the nominal depth of the moored instrument, BODC consider that for the following periods, data quality is significantly affected by knockdown of all the moorings:

  • Beginning of the mooring deployment to 23rd September 2012.
  • 27th January 2013 to 31st January 2013.
  • 16th February 2013 to 20th February 2013.
  • 6th March 2013 to 7th March 2013.
  • 20th April 2013 to 25th April 2013.
  • 3rd May 2013 to 8th May 2013.
  • 21st May 2013 to 8th June 2013.

During these periods, all parameters have been flagged as suspect and users are advised to use this data with extreme caution.

OSMOSIS RRS Discovery D381A and D381B Moored Current Meter Quality Report

The data originator notes that the quality of this data varies, in that the vertical gradient tends to show pronounced errors at 150m. It was not possible to fully explain or resolve this feature, but it was thought that it could relate to acoustic reverberation from nearby instruments or mooring-related structures.


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

Nortek Aquadopp Open Water Current Meter

This instrument provides 3D acoustic doppler current measurements along with standard measurements of temperature, pressure, tilt and direction. It can be used in real time measurement situations or can log to an internal recorder powered by internal batteries. It can also be configured to measure surface wave height, period and direction concurrently. It has the unique feature of being run in 'diagnostic' mode when set to collect data at 1 Hz frequency in user specified intervals. This allows studies of mooring motion and the performance of other current meters to be conducted. It can be set in various configurations with titanium housings for deployment at greater depths.

Standard Measured Parameters

  • 3D current velocity (East/North/Up, X/Y/Z or Beam 1/2/3)
  • Acoustic signal strength (Beam 1/2/3)
  • Compass
  • Tilt
  • Temperature
  • Pressure
  • Battery voltage
  • Status code
  • Error code

Surface wave monitoring

The standard Aquadopp is suitable for measuring surface wave height, period, and direction, which are calculated using the PUV method whereby spectra are estimated based on a combination of the pressure signal recorded by the instrument (P) and two horizontal components of the wave orbital velocity (U and V). More specifically, the pressure signal is used to provide an estimate of the wave frequency spectrum. The energy in this spectrum is then used to estimate wave height and period. The measurements of the wave orbital velocities are used to provide an estimate of the wave direction. Since these estimates are based on the distribution of wave energy and are not direct measurements of the free surface, they should be considered inferred estimates.

Both the dynamic pressure and the orbital velocities are driven by surface waves. The signals that are associated with these properties are complicated by the fact that they attenuate (that is the signals are weaker) with depth. The exact behaviour of the attenuation is determined by the water depth and the wavelength being observed. The greater the water depth the greater the attenuation; likewise, the shorter the wavelength (or higher the frequency of the wave) the greater the attenuation for a given water depth. This means that the estimation of wave parameters is limited by both water depth and wave frequency.

Specifications

Water Velocity Measurement
Range ± 5 m/s (standard 300 m version)
± 3 m/s (3000 m and 6000 m versions - higher ranges available on request)
Accuracy 1% of measured value ± 0.5 cm/s
Max. sampling rate 1 Hz, 4 Hz also available on request (standard version)
Internal sampling rate 23 Hz
Measurement Area
Measurement cell size 0.75 m
Measurement cell position 0.35 - 5.0 m
Default position 0.35 - 1.8 m
Doppler uncertainty (noise)
Typical 0.5 - 1.0 cm/s
At 1 Hz sampling rate 1.5 cm/s
Echo Intensity
Acoustic frequency 2 MHz
Resolution 0.45 dB
Dynamic range 90 dB
Sensors
Temperature Thermistor embedded in head
Range -4°C to 40°C
Accuracy/resolution 0.1°C / 0.01°C
Time response 10 min
Compass Magnetometer
Accuracy/Resolution 2° / 0.1° for tilt < 20°
Tilt Liquid level
Maximum tilt 30°
Up or down Automatic detect
Pressure Piezoresistive
Range 0 - 300 m (standard), 0 - 3000 m or 0 - 6000 m
Accuracy/resolution 0.5%
Analogue Inputs
No. of channels 2
Voltage supply 12 V
Voltage input 16 bit A/D
Materials
Standard version Delrin with titanium screws
3000 m version Delrin with titanium screws
6000 m version Titanium with Delrin transducer head
Environmental
Operating temperature -4°C to 40°C
Dimensions
Cylinder 568 mm x 75 mm (standard)
619 mm x 84 mm (3000 m version)
625 mm x 84 mm (6000 m version)
Weight in air 3.5 kg (standard)
3.6 kg (3000 m version)
7.6 kg (6000 m version)
Weight in water Neutral (standard)
1.2 kg (3000 m version)
4.8 kg (6000 m version)

Further details can be found in the manufacturer's specification sheets for the Aquadopp, Aquadopp 3000 and Aquadopp 6000.

BODC Processing

The data arrived at BODC in 60 Matlab files representing each Nortek sensor deployed during cruises D381A and D381B. No data file was received from the NE outer mooring serial number 1420, as this failed to log any data.

The data were reformatted to a BODC internal NetCDF format. The following table shows the mapping of variables within the Matlab file to appropriate BODC parameter codes:

Original parameter name Original Units Description BODC Parameter Code BODC Units Comments
mtime Matlab time Date and time from 00:00 01/01/1760 AADYAA01 and AAFDZZ01 Day number and day fraction (GMT) Conversion by transfer
u m.s-1 Northward current velocity (Eulerian) in the water body by in-situ current meter LCNSEl01 cm.s-1 *100
v m.s-1 Eastward current velocity (Eulerian) in the water body by in-situ current meter LCEWEL01 cm.s-1 *100
pressure decibars Pressure (measured variable) exerted by the water body by fixed in-situ pressure sensor and corrected to read zero at sea level PRESPS01 decibars  
temperature °C Temperature of the water body TEMPPR01 °C  
sound speed m.s-1 Sound velocity in the water body by computation from temperature and salinity by unspecified algorithm SVELCV01 m.s-1  
pitch degrees Orientation (pitch) of measurement platform by triaxial fluxgate compass PTCHFG01 degrees  
roll degrees Orientation (roll angle) of measurement platform by triaxial fluxgate compass ROLLFG01 degrees  
heading degrees True Orientation (horizontal relative to true north) of measurement device HEADCM01 degrees True  

Following reformatting, the data were screened using BODC in-house visualisation software, EDSERPLO.

Originator's Data Processing

Sampling strategy

A cluster of 9 moorings were deployed in the vicinity of the Porcupine Abyssal Plain Observatory. Each mooring contained between 5 and 13 Nortek Aquadopp single-point current meters.

Data Processing

The originator carried out the following processing:

  • Data were converted from .aqd files to Matlab files using Nortek "bin2mat" software
  • One Matlab file was created per mooring.
  • The positions of the deployments were taken from the cruise report and added to the Matlab files.
  • The files were truncated to cut off the deployment and recovery times of the mooring. These were identified by changes in the pressure channel.

The originator also created raw and gridded versions of the files, which are available on request.


Project Information

Ocean Surface Mixing, Ocean Sub-mesoscale Interaction Study (OSMOSIS)

Background

The Ocean Surface Mixing, Ocean Sub-mesoscale Interaction Study (OSMOSIS) consortium was funded to deliver NERC's Ocean Surface Boundary Layer (OSBL) programme. Commencing in 2011, this multiple year study will combine traditional observational techniques, such as moorings and CTDs, with the latest autonomous sampling technologies (including ocean gliders), capable of delivering near real-time scientific measurements through the water column.

The OSMOSIS consortium aims to improve understanding of the OSBL, the interface between the atmosphere and the deeper ocean. This layer of the water column is thought to play a pivotal role in global climate and the productivity of our oceans.

OSMOSIS involves collaborations between scientists at various universities (Reading, Oxford, Bangor, Southampton and East Anglia) together with researchers at the National Oceanography Centre (NOC), Scottish Association for Marine Science (SAMS) and Plymouth Marine Laboratory (PML). In addition, there are a number of project partners linked to the consortium.

Scientific Objectives

  • The primary goal of the fieldwork component of OSMOSIS is to obtain a year-long time series of the properties of the OSBL and its controlling 3D physical processes. This is achieved with an array of moorings (two nested clusters of 4 moorings, each centred around a central mooring) and gliders deployed near the Porcupine Abyssal Plain (PAP) observatory. Data obtained from this campaign will help with the understanding of these processes and subsequent development of associated parameterisations.
  • OSMOSIS will attempt to create parameterisations for the processes which determine the evolving stratification and potential vorticity budgets of the OSBL.
  • The overall legacy of OSMOSIS will be to develop new (physically based and observationally supported) parameterisations of processes that deepen and shoal the OSBL, and to implement and evaluate these parameterisations in a state-of-the-art global coupled climate model, facilitating improved weather and climate predictions.

Fieldwork

Three cruises are directly associated with the OSMOSIS consortium. Preliminary exploratory work in the Clyde Sea (September 2011) to hone techniques and strategies, followed by a mooring deployment and recovery cruise in the vicinity of the Porcupine Abyssal Plain (PAP) observatory (in late Summer 2012 and 2013 respectively). Additional opportunist ship time being factored in to support the ambitious glider operations associated with OSMOSIS.

Instrumentation

Types of instrumentation and measurements associated with the OSMOSIS observational campaign:

  • Ocean gliders
  • Wave rider buoys
  • Towed SeaSoar surveys
  • Microshear measurements
  • Moored current meters, conductivity-temperature sensors and ADCPs
  • Traditional shipboard measurements (including CTD, underway, discrete nutrients, LADCP, ADCP).

Contacts

Collaborator Organisation
Prof. Stephen Belcher University of Reading, U.K
Dr. Alberto C Naveira Garabato University of Southampton, U.K

Data Activity or Cruise Information

Data Activity

Start Date (yyyy-mm-dd) 2012-09-05
End Date (yyyy-mm-dd) 2013-09-07
Organization Undertaking ActivityUniversity of Southampton School of Ocean and Earth Science
Country of OrganizationUnited Kingdom
Originator's Data Activity IdentifierOSMOSIS SE inner
Platform Categorysubsurface mooring

OSMOSIS south-east inner mooring

The short term moorings were deployed and recovered during cruise RRS Discovery D381A as part of the Ocean Surface Mixing, Ocean Submesoscale Interaction Study (OSMOSIS) project.

The target for the inner south-east mooring was 48° 40.740' N, 16° 10.440' W in approximately 4,830 m of water. The mooring consisted of 50 Star-Oddi thermistors, one upward pointing 75 kHz ADCP, seven Nortek single-point current meters and seven SBE 37 MicroCAT sensors. In addition, a light and Argo tag were fixed at the top of the mooring.

Instruments deployed on the mooring

Instrument and equipment Instrument serial number Depth relative to surface
Thermistor T4269 33
Light W06-006 36
ARGO tag A02-019 36
Thermistor T4270 47
Nortek CM 9877 53
Thermistor T4271 54
SBE 37 MicroCAT 9386 54
Thermistor T4272 59
Thermistor T4273 64
Thermistor T4274 69
Thermistor T4275 74
Thermistor T4276 79
Thermistor T4277 84
Thermistor T4278 89
Thermistor T4279 94
Thermistor T4280 99
Nortek CM 9881 110
Thermistor T4281 110
SBE 37 MicroCAT 9387 110
Thermistor T4282 115
Thermistor T4283 120
Thermistor T4284 125
Thermistor T4285 130
Thermistor T4286 135
Thermistor T4287 140
Thermistor T4288 145
Thermistor T4289 150
Nortek CM 9885 159
SBE 37 MicroCAT 9388 160
Thermistor T4290 162
Thermistor T4291 171
Thermistor T4292 180
Thermistor T4293 189
Thermistor T4433 198
Thermistor T4434 207
Thermistor T4437 216
Nortek CM 9905 228
Thermistor T4439 228
SBE 37 MicroCAT 9389 229
Thermistor T4440 234
Thermistor T4441 244
Thermistor T4442 254
Thermistor T4443 264
Thermistor T4444 274
Thermistor T4445 284
Thermistor T4446 293
Nortek CM 9909 298
SBE 37 MicroCAT 9390 299
Thermistor T4447 305
Thermistor T4448 319
Thermistor T4478 334
Thermistor T4450 348
Nortek CM 9912 352
SBE 37 MicroCAT 7314 353
Thermistor T4451 363
Thermistor T4452 378
Thermistor T4453 393
Thermistor T4454 408
Thermistor T4455 423
Thermistor T4456 438
75 kHz ADCP LR17826 452
Thermistor T4457 453
Thermistor T4458 465
Thermistor T4459 480
Thermistor T4460 495
Nortek CM 9926 513
SBE 37 MicroCAT 7315 514
Release 1140/1497 4816

Related Data Activity activities are detailed in Appendix 1

Cruise

Cruise Name D381A
Departure Date 2012-08-28
Arrival Date 2012-09-13
Principal Scientist(s)Alberto C Naveira Garabato (University of Southampton School of Ocean and Earth Science)
Ship RRS Discovery

Complete Cruise Metadata Report is available here


Fixed Station Information


No Fixed Station Information held for the Series


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: OSMOSIS SE inner

Related series for this Data Activity 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
1766587Hydrography time series at depth2012-09-05 21:45:0148.68033 N, 16.174 WRRS Discovery D381A
1766599Hydrography time series at depth2012-09-05 21:45:0148.68033 N, 16.174 WRRS Discovery D381A
1766606Hydrography time series at depth2012-09-05 21:45:0148.68033 N, 16.174 WRRS Discovery D381A
1766618Hydrography time series at depth2012-09-05 21:45:0148.68033 N, 16.174 WRRS Discovery D381A
1766631Hydrography time series at depth2012-09-05 21:45:0148.68033 N, 16.174 WRRS Discovery D381A
1800184Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800196Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800203Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800215Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800227Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800239Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800240Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800252Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800264Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800276Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800288Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800307Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800319Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800320Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800332Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800344Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800356Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800368Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800381Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800393Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800400Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800412Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800424Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800436Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800448Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800461Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800473Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800485Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800497Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800504Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800516Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800528Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800541Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800553Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800565Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800577Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800589Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800590Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800608Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800621Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800633Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800645Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800657Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800669Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800670Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800682Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800694Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800701Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800713Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1800725Hydrography time series at depth2012-09-05 21:46:0048.68033 N, 16.174 WRRS Discovery D381A
1743017Currents -subsurface Eulerian2012-09-05 21:50:0048.68033 N, 16.174 WRRS Discovery D381A
1743029Currents -subsurface Eulerian2012-09-05 21:50:0048.68033 N, 16.174 WRRS Discovery D381A
1743030Currents -subsurface Eulerian2012-09-05 21:50:0048.68033 N, 16.174 WRRS Discovery D381A
1743042Currents -subsurface Eulerian2012-09-05 21:50:0048.68033 N, 16.174 WRRS Discovery D381A
1743066Currents -subsurface Eulerian2012-09-05 21:50:0048.68033 N, 16.174 WRRS Discovery D381A
1743078Currents -subsurface Eulerian2012-09-05 21:50:0048.68033 N, 16.174 WRRS Discovery D381A
1766643Hydrography time series at depth2012-09-05 21:50:0148.68033 N, 16.174 WRRS Discovery D381A
1766655Hydrography time series at depth2012-09-05 21:50:0148.68033 N, 16.174 WRRS Discovery D381A