Metadata Report for BODC Series Reference Number 897123

• Metadata Summary

• Problem Reports

• Data Access Policy

• Narrative Documents

• Project Information

• Data Activity or Cruise Information

• Fixed Station Information

• BODC Quality Flags

• SeaDataNet Quality Flags

Metadata Summary

Problem Reports

No Problem Report Found in the Database

Data Access Policy

Public domain data

These data have no specific confidentiality restrictions for users. However, users must acknowledge data sources as it is not ethical to publish data without proper attribution. Any publication or other output resulting from usage of the data should include an acknowledgment.

The recommended acknowledgment is

"This study uses data from the data source/organisation/programme, provided by the British Oceanographic Data Centre and funded by the funding body."

Narrative Documents

Aanderaa Recording Doppler Current Profiler (RDCP 600)

The RDCP 600 is a medium range, 600 kHz self-recording Doppler Current Profiler. The standard RDCP 600 can be deployed to a depth of 300 m, with a velocity range of 0-500 cm/s, vertical velocity accuracy of 1.0 cm s^-1 and horizontal velocity accuracy of 0.5cm s^-1. Standard parameters include current speed and direction, temperature, signal strength and instrument tilt. Optional parameters include oxygen, turbidity, conductivity, pressure and wave parameters. The instruments has several possible applications for example it may be moored at the bottom in a fixed frame, in an inline mooring string looking upwards or downwards, or it may be installed on a buoy system or at a quay looking downwards.

The RDCP 600 employs an advanced tilt compensation algorithm to achieve true horizontal current measurements even when the instrument is tilted.

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

BODC Processing

Data were received by BODC in ASCII format files. The series were reformatted to the internal QXF format using BODC transfer function 325. The following table shows how the variables within the file were mapped to the appropriate BODC parameter codes.

Following transfer to QXF, the data were screened using BODC's in-house visualisation software, EDSERPLO. Any data considered as suspect were flagged 'M'. Flags from the originator marking suspect data were retained during transfer and flagged 'L'.

Originator's Data Processing

Sampling Strategy

The Aanderaa Recording Doppler Current Profiler deployed in Loch Shieldaig had a sampling frequency of 4 readings per hour.

Data Processing

FRS applied the standard manufacturers' calibrations to all data, and produced ASCII files for submission to BODC. Data files were named according to the mooring (727) and series number (1, 2 or 3, below). The data were supplied as quasi-current meter records at three discrete depths: series 7271 from 4 m; series 7272 from 28 m and series 7273 from 60 m. Each file contained eastward and northward velocities.

Project Information

No Project Information held for the Series

Data Activity or Cruise Information

Data Activity

FRS bottom mounted Aanderaa Recording Doppler Current Profiler, Loch Shieldaig

The Aanderaa Recording Doppler Current Profiler (RDCP600) was located at 57° 32.15' N, 005° 41.19' W in a nominal water depth of 65 m.

The RDCP600 was deployed on 13 July 2006 by Fisheries Research Services (FRS, now known as Marine Scotland Aberdeen Marine Laboratory) on cruise Fram 1206H (10 July 2006-14 July 2006) and recovered on 16 November 2006. Instrumentation details are included in the following table.

Related Data Activity activities are detailed in Appendix 1

Cruise

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:

SeaDataNet Quality Control Flags

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

Appendix 1: 727

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.