Metadata Report for BODC Series Reference Number 2074196

• 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

MBA 2018-2020 WCO CTD Instrument Description

A sole Valeport Midas 606 CTD was used during the 2018-2020 data collection within the Western English Channel. This CTD was deployed without the use of a rosette or bottles, nor any other additional instruments.

Valeport MIDAS 606 CTD

A conductivity, temperature, and pressure sensor designed for rapid profiling work and deployment on moorings. It measures conductivity (mS/cm), temperature (ITS90,deg C), and pressure (bar), using a high stability conductivity sensor, a fast response platinum resistance thermometer (PRT) temperature sensor, and a temperature compensated piezo-resistive pressure transducer. The sensors are all synchronised to sample at the same time. The CTD sensors are encased in titanium. The instrument can be powered by cable or battery, allowing for real-time or autonomous sampling. There are 5 sampling modes: continuous, burst, trip/profile, conditional, and delay. The instrument is also fitted with 16 MB of solid-state non-volatile FLASH memory. The CTD has a depth rating of 6000 m, however the pressure sensor ranges are 10, 50, 100, 300 or 600 bar with 0.001 % resolution and 0.01 % accuracy. The conductivity sensor has a range of 0 - 80 mS/cm, resolution of 0.002 mS/cm, and accuracy of 0.01 mS/cm. The temperature sensor range is -5 to 35 degC, with resolution 0.005 degC, and accuracy 0.01 degC.

For more information, please see this document: https://www.bodc.ac.uk/data/documents/nodb/pdf/Valeport-MIDAS-CTD.pdf

MBA 2018-2020 WCO CTD Data: Processing by BODC

The CTD data were submitted to BODC as .csv files. 61 CTD downcasts were submitted along with additional information files for 2018,2019,2020 and completed BODC metadata submission templates. The data were archived under the accession MBA210021 in BODC systems. Basic checks of the data and metadata were carried out.

During transfer the originator's variables were mapped to unique BODC parameter codes. The following table shows the parameter mapping.

Following transfer, BODC in-house visualisation software was using to screen the data. Any data values that were identified as suspect were assigned the appropriate BODC data quality flag following discussion with originator.

Parameters that have not been transferred can be provided on request.

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

Western Channel Observatory station E1

The Western Channel Observatory (WCO) is situated in the Western English Channel and comprises of sustained long-term observations at a number of stations.

Station E1 is located south-west of Plymouth at 50°2.00'N, 4°22.00'W.

More information can be found on the Western Channel Observatory website.

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: Western Channel Observatory E1

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.