Metadata Report for BODC Series Reference Number 47283

• 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

Open 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.

If the Information Provider does not provide a specific attribution statement, or if you are using Information from several Information Providers and multiple attributions are not practical in your product or application, you may consider using the following:

"Contains public sector information licensed under the Open Government Licence v1.0."

Narrative Documents

Aanderaa Pressure Recorder Type TG-4A

The Aanderaa recorder uses a Digiquartz type 2-300a quartz crystal pressure transducer. The pressure sensor consists of a convoluted bellows linked to a 40kHz quartz crystal resonator coupled by piezoelectric action to an electronic resonator. Data are recorded on to 0.25 inch magnetic tape on an Aanderaa data logger in the same case. A quartz crystal clock is used for controlling the sampling interval.

The data are recorded as 10 bit binary words in serial form with the frequency count from the sensor stored as the most and least significant counts. The pressure recorder is a deep water instrument and is usually deployed on a pop up mooring.

Data Processing Notes

Instrument samples temperature and pressure alternately, therefore interval between 2 consecutive pressure values is 1 hour. Clock gained 43 seconds over 172 days 10 hours 59 minutes 17 seconds; original cycle interval and time values have been corrected.

Instrument characteristics

Station C4/1

IOS Data Processing of Off-Shore Pressure Recorder Data

Data processing consists of two stages:-

1. Pressures have been sample rate reduced from the basic time step of the recorder to produce the hourly values and have been interpolated by a cubic spline to generate the value on cardinal hours.

2. Instrumental drift has been removed and the drift free series is produced with an artificial mean value, usually of 100mbar.

Project Information

Continental Slope Experiment (CONSLEX)

The Continental Slope Experiment (CONSLEX) was a collaborative exercise between the Institute of Oceanographic Sciences, Scottish Marine Biological Association, Department of Agriculture and Fisheries for Scotland and the Ministry of Agriculture, Fisheries and Food designed to study water movements across the Scottish continental slope.

The experiment ran from August/September 1982 to February/March 1983. The deployments, mainly current meter moorings, were made along a set of lines defined thus:

Bottom-mounted pressure gauges were deployed at either end of lines A-G and four temporary tide gauges were installed from Sligo (Eire) to Shetland. The current meter temperature sensors were supplemented by three thermistor chain deployments.

Data Activity or Cruise Information

No Data Activity or Cruise Information held for the Series

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: