Metadata Report for BODC Series Reference Number 1166974

• 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

Quality Control Report

Current speed and direction data, and temperature data where available, appear to be sound. Where salinity values were stable, the signal appears relatively noisy, although noise is low in absolute terms. Salinity spikes beyond the scale of the background noise have been flagged.

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 in ASCII format files. The series were transferred to BODC's in-house format. The following table shows how the variables within the file were mapped to the appropriate BODC parameter codes.

Following reformatting, the data were visually screened. Any data considered suspect were flagged accordingly. The originator's quality control flags were retained during transfer.

Originator's Data Processing

Marine Scotland applied the standard manufacturers' calibrations to all current, temperature and salinity data and produced ASCII files for submission to BODC. Data files (.hmo) were named according to the mooring code and the instrument number. Each current meter file contained eastward and northward velocities and temperature. In cases where the temperature data ran for longer than the current data, the temperature records were saved as separate files appended 't'. Salinity data for each instrument were contained in files appended 's'. Header metadata were collated in additional files (.frm). Speed/Direction distributions (.csd) and harmonic analyses files (.lpr) for the current meter data were also generated.

Project Information

No Project Information held for the Series

Data Activity or Cruise Information

Data Activity

Marine Scotland Recording Doppler Current Profiler mooring (800), Loch Linnhe

The Aanderaa Recording Doppler Current Profiler (RDCP600) was located at 56° 38.11' N, 05° 25.51' W in a nominal water depth of 27 m.

The RDCP600 was deployed on 19 April 2011 by Marine Scotland and recovered by the MV Glenmhor on 16 May 2011. Instrumentation details are included in the following table.

Related Data Activity activities are detailed in Appendix 1

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: 800

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.