Metadata Report for BODC Series Reference Number 580808
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 quality
The temperature channel is noisy throught the dataset and there is a sharp increase in values from start to finish.
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. |
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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 136. The full data file contained only temperature data. This was mapped to the appropriate BODC parameter code.
Variable | Units | BODC parameter code | Units | Comments |
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Temperature | deg C | TEMPPR01 | deg C | - |
Following the transfer the data was 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) | 2001-05-22 |
End Date (yyyy-mm-dd) | 2001-10-10 |
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 | 666 |
Platform Category | subsurface mooring |
FRS moored Vemco Minilogger from Stonehaven
A moored Vemco minilogger was deployed by Fisheries Research Services (FRS) in Sonehaven (56.99783° N, 1.74783° W) on 22/05/01 as part of the Clupea 0701c cruise, and recovered on 10/10/01 by the Clupea 1401c cruise. The station had a nominal water depth of 75 m. The SonTek Argonaut had a sampling period of 12 minutes. The data were supplied as current meter records at depths of: Series 6661 at 1m, Series 6662 at 5 m, Series 6663 at 10 m, Series 6664 at 15 m, Series 6665 at 20 m, Series 6666 at 30 m, Series 6667 at 35 m, Series 6668 at 50 m.
The mooring consisted of the following instruments.
Instrument type | Series Number | Serial Number | Deployment start | Deployment end | Instrument depth (m) | Comments |
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Vemco Minilogger | 6661 | 4151 | 22/05/2001 | 10/10/2001 | 1 | Minilogger lost. No data received. |
Vemco Minilogger | 6662 | 4152 | 22/05/2001 | 10/10/2001 | 5 | Data have minimal editing. |
Vemco Minilogger | 6663 | 4140 | 22/05/2001 | 10/10/2001 | 10 | Data have minimal editing. Data interval set at 4 mins and 1 sec in error. |
Vemco Minilogger | 6664 | 4153 | 22/05/2001 | 10/10/2001 | 15 | Data have minimal editing. |
Vemco Minilogger | 6665 | 4141 | 22/05/2001 | 10/10/2001 | 20 | Minilogger lost. No data received. |
Vemco Minilogger | 6666 | 1917 | 22/05/2001 | 10/10/2001 | 30 | Data have minimal editing. |
Vemco Minilogger | 6667 | 4142 | 22/05/2001 | 10/10/2001 | 35 | Data have minimal editing. |
Vemco Minilogger | 6668 | 1916 | 22/05/2001 | 10/10/2001 | 50 | Data have minimal editing. |
Related Data Activity activities are detailed in Appendix 1
Cruise
Cruise Name | 0701C |
Departure Date | 2001-05-22 |
Arrival Date | 2001-06-11 |
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 |
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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 |
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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 |
Appendix 1: 666
Related series for this Data Activity 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.
Series Identifier | Data Category | Start date/time | Start position | Cruise |
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580765 | Hydrography time series at depth | 2001-05-22 16:08:00 | 56.9978 N, 1.7478 W | FRV Clupea 0701C |
580777 | Hydrography time series at depth | 2001-05-22 16:08:00 | 56.9978 N, 1.7478 W | FRV Clupea 0701C |
580789 | Hydrography time series at depth | 2001-05-22 16:08:00 | 56.9978 N, 1.7478 W | FRV Clupea 0701C |
580790 | Hydrography time series at depth | 2001-05-22 16:08:00 | 56.9978 N, 1.7478 W | FRV Clupea 0701C |
580821 | Hydrography time series at depth | 2001-05-22 16:08:00 | 56.9978 N, 1.7478 W | FRV Clupea 0701C |