Metadata Report for BODC Series Reference Number 581707
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
Data Description |
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Data Identifiers |
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Time Co-ordinates(UT) |
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Spatial Co-ordinates | |||||||||||||||||||||||||
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Parameters |
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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
Vemco Minilog8 TR temperature logger
The VEMCO Minilog8-TR is a miniature data logger that records temperature at a user programmed time interval. It is housed in a waterproof cylinder and the temperature sensor is mounted on a protruding stainless steel probe.
Specifications
| Memory | 16 or 64k memory size, approximately 8000 readings stored in non-volatile Electrically Erasable Programmable Read Only Memory (EEPROM). Logging duration is between 1 second to 6 hours for up to 5 years depending on the logging interval. |
|---|---|
| Data Retention | 20 years. |
| Temperature Range | -5 to 40 °C; 0.1-0.2 °C resolution; ±0.2-0.3 °C accuracy with factory calibration. |
| Maximum Depth | 680 m |
| Communication Link | Infrared LED. No external connections are required. Full memory downloads in 3 to 6 minutes. |
| Battery | Internal lithium battery with life of up to 5 years or up to 700- 1000 full deployments. |
Further details can be found in the manufacturer's specification sheet.
BODC processing
The data were provided to BODC in ascii format and were transferred to qxf format by BODC produced Matlab transfer 325.
The variables were then mapped to the appropriate BODC parameter code which can be seen below:
| Variable | Units | BODC parameter code | Units | Comments |
|---|---|---|---|---|
| Temperature | deg C | TEMPTC01 | deg C | - |
Following the transfer the data were screened using the BODC in-house visualisation software, EDSERPLO. Any suspect data points were flagged with the appropriate BODC flag code.
Originator's data processing
The data from the Vemco Miniloggers were merged to form "pseudo" thermistor chain records prior to being supplied to BODC.
FRS applied the standard manufaturers' 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
Data Activity
| Start Date (yyyy-mm-dd) | 2001-03-08 |
| End Date (yyyy-mm-dd) | 2001-05-23 |
| Organization Undertaking Activity | Fisheries Research Services Aberdeen Marine Laboratory (now Marine Scotland Aberdeen Marine Laboratory) |
| Country of Organization | United Kingdom |
| Originator's Data Activity Identifier | 655 |
| Platform Category | subsurface mooring |
FRS moored Vemco Minilogger from Wee Bankie
Multiple mounted Vemco miniloggers were deployed by Fisheries Research Services (FRS) in Wee Bankie (56.24967° N, 1.25133° W) on 08/03/01 as part of the Clupea 0401c cruise, and recovered on 23/05/01 by the Clupea 0701c cruise. The station had a nominal water depth of 62 m. The instruments had a sampling period of 10 minutes. The instruments were deployed as part of a thermistor chain at discrete depths of: 1 m, 5 m, 10 m, 15 m, 20 m, 30 m, 35 m, 50 m.
The mooring 655T consisted of the following instruments.
| Instrument type | Serial Number | Deployment start | Deployment end | Instrument depth (m) | Comments |
|---|---|---|---|---|---|
| Vemco Minilogger | 4143 | 08/03/2001 | 23/05/2001 | 1 | - |
| Vemco Minilogger | 4144 | 08/03/2001 | 23/05/2001 | 5 | - |
| Vemco Minilogger | 4135 | 08/03/2001 | 23/05/2001 | 10 | - |
| Vemco Minilogger | 4145 | 08/03/2001 | 23/05/2001 | 15 | - |
| Vemco Minilogger | 4136 | 08/03/2001 | 23/05/2001 | 20 | - |
| Vemco Minilogger | 4146 | 08/03/2001 | 23/05/2001 | 30 | - |
| Vemco Minilogger | 4137 | 08/03/2001 | 23/05/2001 | 35 | - |
| Vemco Minilogger | 4147 | 08/03/2001 | 23/05/2001 | 50 | - |
Cruise
| Cruise Name | 0401C |
| Departure Date | 2001-03-05 |
| Arrival Date | 2001-03-16 |
| Principal Scientist(s) | Simon Greenstreet (Fisheries Research Services Aberdeen Marine Laboratory) |
| Ship | FRV Clupea |
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:
| Flag | Description |
|---|---|
| Blank | Unqualified |
| < | Below detection limit |
| > | In excess of quoted value |
| A | Taxonomic flag for affinis (aff.) |
| B | Beginning of CTD Down/Up Cast |
| C | Taxonomic flag for confer (cf.) |
| D | Thermometric depth |
| E | End of CTD Down/Up Cast |
| G | Non-taxonomic biological characteristic uncertainty |
| H | Extrapolated value |
| I | Taxonomic flag for single species (sp.) |
| K | Improbable value - unknown quality control source |
| L | Improbable value - originator's quality control |
| M | Improbable value - BODC quality control |
| N | Null value |
| O | Improbable value - user quality control |
| P | Trace/calm |
| Q | Indeterminate |
| R | Replacement value |
| S | Estimated value |
| T | Interpolated value |
| U | Uncalibrated |
| W | Control value |
| X | Excessive difference |
SeaDataNet Quality Control Flags
The following single character qualifying flags may be associated with one or more individual parameters with a data cycle:
| Flag | Description |
|---|---|
| 0 | no quality control |
| 1 | good value |
| 2 | probably good value |
| 3 | probably bad value |
| 4 | bad value |
| 5 | changed value |
| 6 | value below detection |
| 7 | value in excess |
| 8 | interpolated value |
| 9 | missing value |
| A | value phenomenon uncertain |
| B | nominal value |
| Q | value below limit of quantification |
