Metadata Report for BODC Series Reference Number 582041
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
Time Error
Inspection of the series indicates a time channel error. Time stands still on occasions. The data points have been equally spread between this and the next increment in time.
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
Bathymetric Survey: WOCE P21W/1994 USNGDC No: 15020143
| Bathymetric Survey Reference | WOCE P21W/1994 |
|---|---|
| USNGDC No | 15020143 |
| WOCE Expocode | 318MWESTW_5; Westward leg 4 |
| WOCE Section | P21W |
| Source Institution | Scripps Institution of Oceanography, USA |
| Survey Platform | RV Melville |
| Chief Scientist | H. Bryden |
| Date of Departure | 19 May 1994 |
| Port of Departure | Papeete, Tahiti |
| Date of Arrival | 25 June 1994 |
| Port of Arrival | Brisbane, Australia |
| Start of Survey | 1994 05 19 2351 hours |
| Start Position | 17° 32.28'S, 149° 34.77'W |
| End of Survey | 1994 06 24 2208 hours |
| End Position | 27° 26.81'S, 153° 04.68'E |
| Navigation Instrumentation | GPS, Trimble mod. 4000AX |
| Bathymetry Instrumentation | Seabeam 2000 w/ Sidescan |
1 minute values extracted from Seabeam vertical beam. Depths corrected from 5 metre ship draft.
WOCE Bathymetry Screening carried out by BODC
BODC have screened the series header information and the parameter values in the data cycles. Header information has been inspected for irregularities and inconsistencies between related information.
Positions have been checked using a visual inspection on a world map and by calculating platform speed. Time channels have been checked and corrected where appropriate. Duplicate data cycles have been removed.
Data cycles have been visually inspected and compared to ETOPO5 for guidance: Discovery cruises have bathymetry flagged where depth > 1000+ETOPO5. No data values have been altered, values suspected to be dubious have been marked as suspect. Caution documents have been written where appropiate.
Project Information
World Ocean Circulation Experiment (WOCE)
The World Ocean Circulation Experiment (WOCE) was a major international experiment which made measurements and undertook modelling studies of the deep oceans in order to provide a much improved understanding of the role of ocean circulation in changing and ameliorating the Earth's climate.
WOCE had two major goals:
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Goal 1. To develop models to predict climate and to collect the data necessary to test them.
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Goal 2. To determine the representativeness of the Goal 1 observations and to deduce cost effective means of determining long-term changes in ocean circulation.
Data Activity or Cruise Information
Cruise
| Cruise Name | 318MWESTW_5 |
| Departure Date | 1994-05-19 |
| Arrival Date | 1994-06-25 |
| Principal Scientist(s) | Harry L Bryden (James Rennell Centre for Ocean Circulation) |
| Ship | RV Melville |
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 |
