Metadata Report for BODC Series Reference Number 85174

• 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

Academic domain data

These data have no specific confidentiality restrictions for academic 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 data source/organisation/programme, provided by the British Oceanographic Data Centre and funded by the funding body."

Narrative Documents

Howaldtswerke-Deutsche Werft Bathysonde CTD profiler

A self-contained conductivity-temperature-pressure profiler developed in the 1970s. The unit could be equipped with a remotely controlled Nansen bottle and thermometer frame to provide water samples and independent temperature measurements. Data were digitised in the underwater unit by means of a set of mechanical relays, thereby limiting the sampling frequency to <2 Hz. Pressure and conductivity were sampled simultaneously, while temperature was subject to a 60 ms delay in order to correct for the sensor time constant.

Specifications

FS Meteor Cruise 36 STD Data Documentation

Introduction

Documentation for STD data collected on FS Meteor 36 (January - February 1975) by the Institute fur Meereskunde, Kiel, Federal Republic of Germany.

This was a cruise in conjunction with scientists on board the UK research ship RRS Discovery (Cruise 69). It was organised jointly by the Institute of Oceanographic Sciences and the University of Liverpool, Department of Oceanography in the UK and the Institute fur Meereskunde, Kiel, Germany.

Instrumentation

The instrument used was a Bathysonde Salinity-Temperature-Depth system.

Calibration and Data Processing

The calibrations curves for the Bathysonde were determined to be:

• T(true) = 1.00875 * T(obs) - 0.0534 °C
• C(true) = 1.00514 * C(obs) - 0.2185 mmho/cm

These were based on a few water bottle casts only, performed for the purpose of calibration. After calibration against the water bottle observations the STD data were despiked, smoothed and interpolated to 2m depth intervals.

Sampling

Stations were identified by their 4 digit station number.

Caution

For the following 3 stations the water depth given was less than the maximum depth of the instrument by more then 10 per cent. The water depths has been set null in the series header, but their values are noted below:

Reference

Brockmann, C., Hughes, P. and Tomczak, M. (1977).
Data report on currents, winds and stratification in the North-west African upwelling region during early 1975. Berichte aus dem Institute fur Meereskunde No. 32.

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

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: