Metadata Report for BODC Series Reference Number 462192

• 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

Sea-Bird SBE 25 SEALOGGER CTD

The SBE 25 SEALOGGER is a research-quality CTD profiling system used for coastal, estuarine and, can also be a practical option, for deep-water work. It is easily configured in the field for a wide range of auxiliary sensors. The SEALOGGER is self-powered, requires no conductive cable, and is designed for use up to 6800 meters (10,000 psia). It uses the SBE3F temperature and SBE4 conductivity sensors as well as having an external strain gauge pressure sensor. It provides pump-controlled T-C ducted flow, samples at 8 Hz, records internally and provides simultaneous real-time data via its built-in RS-232 interface.

The standard CTD unit comes with a plastic housing (rated to 600 m), although this can be replaced by aluminium housing for depths up to 6800 m.

Specifications

Options and accessories

Additional sensors can be attached to the CTD, including:

• Dissolved Oxygen (SBE 43 DO Sensor)
• pH (SBE 18 pH Sensor or SBE 27 pH/ORP Sensor)
• fluorescence
• radiance (PAR)
• light transmission
• optical backscatter (turbidity)

The SBE 5T titanium pump can be used in place of SBE 5P pump. Further details can be found in the manufacturer's SBE 25 instrument specification.

BODC Processing

Data were received by BODC in ASCII format files. The CTD files were reformatted to the internal QXF format using a BODC transfer function. 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

A total of 75 CTD cast were performed during this cruise. Of these casts, 39 were made in the standard Faroe-Shetland Channel. Due to bad weather it was not possible to sample along the JONSIS line but 36 CTD casts were made in the North Sea across the Viking Bank.

Data Processing

FRS applied the standard manufacturers' calibrations to all data, and produced ASCII files for submission to BODC.

Project Information

No Project Information held for the Series

Data Activity or Cruise Information

Cruise

Complete Cruise Metadata Report is available here

Fixed Station Information

Fixed Station Information

Fair Isle-Munken section

Long term monitoring carried out by the Marine Laboratory Aberdeen began in the early 1890's by the forerunner of the laboratory, the Fishery Board of Scotland (est. 1882). The first water bottle casts were carried out during 1893 and conducted by Dr H N Dickson on board HMS Jackal. Four of these stations were to become part of the now standard Nolso-Flugga Faroe-Shetland Channel section. In addition, at positions further south, he sampled at three stations and these were to become part of the standard Fair Isle-Munken section. A full set of stations (12) were first sampled along the Nolso-Flugga line in 1903, and since then have more or less been sampled annually or more except for the war years. Since then extra stations have been added to both sections.

Map of standard stations

Fair Isle-Munken stations (Amended for presence of Foinaven oil platform)

Listed below are details of the standard hydrographic stations that form the Fair Isle-Munken line.

* FIM-03 - Use 60 20.25'N 004 09.00'W if above position is occupied.

Standard depths of water bottles

5,50,100,200,300,400,500,600,700,800,900,1000 and bottom

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:

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: Fair Isle - Munken Line

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.