Metadata Report for BODC Series Reference Number 582053
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
Bathymetric Survey: WOCE P17C/1991 USNGDC No: 15040205
| Bathymetric Survey Reference | WOCE P17C/1991 |
|---|---|
| USNGDC No | 15040205 |
| WOCE Expocode | 31WTTUNES_1; Tunes leg 1 |
| WOCE Section | P17C |
| Source Institution | Scripps Institution of Oceanography, USA |
| Survey Platform | RV T. Washington |
| Chief Scientist | M. Tsuchiya |
| Date of Departure | 31 May 1991 |
| Port of Departure | San Diego, USA |
| Date of Arrival | 11 Jul 1991 |
| Port of Arrival | Papeete, Tahiti |
| Start of Survey | 1991 05 31 1540 hours |
| Start Position | 32° 41.28'N, 117° 13.88'W |
| End of Survey | 1991 07 11 1750 hours |
| End Position | 17° 32.03'S, 149° 34.33'W |
| Navigation Instrumentation | GPS, Auto Log GYRO+2D Doppler SPD |
| Bathymetry Instrumentation | Seabeam vertical beam (2&2/3 DEG) |
Processed by the Geological Data Centre, SIO.
1 minute averages have been extracted from the Seabeam vertical beam. Depths have been corrected for the 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 | 31WTTUNES_1 |
| Departure Date | 1991-05-31 |
| Arrival Date | 1991-07-11 |
| Principal Scientist(s) | Mizuki Tsuchiya (Scripps Institution of Oceanography) |
| Ship | RV Thomas Washington |
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 |
