Metadata Report for BODC Series Reference Number 444401
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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Time Co-ordinates(UT) |
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Parameters |
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Problem Reports
Current speed derived from R2 Savonius rotor (0.402 m.a.b.) exhibited somewhat lower values when compared to other three sensors. This behaviour was noticable from the beginning until 22 January 19:30h, after which time the sensor showed no offset.
Data Access Policy
Open Data supplied by Natural Environment Research Council (NERC)
You must always use the following attribution statement to acknowledge the source of the information: "Contains data supplied by Natural Environment Research Council."
Narrative Documents
Sediment Transport and Boundary Layer Equipment Mark II (STABLE2)
Pop-up STABLE2 is a benthic lander consisting of a large aluminium frame standing on tripod legs, designed and built at the Proudman Oceanographic Laboratory. It is fitted with syntactic foam buoyancy, two Benthos transponding releases, mechanical releases and disposable ballast. When the Benthos releases receive a coded acoustic command from the mother ship, the ballast is released and the instrument pops up to the surface.
Current speeds are measured at four heights by Savonius rotor meters. Current direction is measured by a single vane.
Instruments on the frame
Height above sea bed | Instrument |
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1.950 m | D/Q pressure sensor |
1.350 m | "Mean" logger with temperature sensor and the compass |
0.907 m | Vane |
0.762 m | R4 Savonius rotor |
0.582 m | R3 Savonius rotor |
0.402 m | R2 Savonius rotor |
0.222 m | R1 Savonius rotor |
For more information refer to POL Report No 37 1994
(Description and Interpretation of Data Recorded by STABLE II During Charles Darwin Cruise 84, OMEX, Goban Spur, January 1994; J.D. Humphery and S.P. Moores).
Sensor Configuration
Data channels and the related instrument heights above sea bed:
Parameter | Height Above Sea Bed |
---|---|
PRESPS01 | 1.950 m |
HEADCM01 | 1.350 m |
PTCHEI01 | 1.350 m |
ROLLEI01 | 1.350 m |
TEMPPR01 | 1.350 m |
LCDAEL01 | 0.907 m |
LCSAEL04 | 0.762 m |
LCSAEL03 | 0.582 m |
LCSAEL02 | 0.402 m |
LCSAEL01 | 0.222 m |
Project Information
Ocean Margin EXchange (OMEX) I
Introduction
OMEX was a European multidisciplinary oceanographic research project that studied and quantified the exchange processes of carbon and associated elements between the continental shelf of western Europe and the open Atlantic Ocean. The project ran in two phases known as OMEX I (1993-1996) and OMEX II - II (1997-2000), with a bridging phase OMEX II - I (1996-1997). The project was supported by the European Union under the second and third phases of its MArine Science and Technology Programme (MAST) through contracts MAS2-CT93-0069 and MAS3-CT97-0076. It was led by Professor Roland Wollast from Université Libre de Bruxelles, Belgium and involved more than 100 scientists from 10 European countries.
Scientific Objectives
The aim of the Ocean Margin EXchange (OMEX) project was to gain a better understanding of the physical, chemical and biological processes occurring at the ocean margins in order to quantify fluxes of energy and matter (carbon, nutrients and other trace elements) across this boundary. The research culminated in the development of quantitative budgets for the areas studied using an approach based on both field measurements and modeling.
OMEX I (1993-1996)
The first phase of OMEX was divided into sub-projects by discipline:
- Physics
- Biogeochemical Cycles
- Biological Processes
- Benthic Processes
- Carbon Cycling and Biogases
This emphasises the multidisciplinary nature of the research.
The project fieldwork focussed on the region of the European Margin adjacent to the Goban Spur (off the coast of Brittany) and the shelf break off Tromsø, Norway. However, there was also data collected off the Iberian Margin and to the west of Ireland. In all a total of 57 research cruises (excluding 295 Continuous Plankton Recorder tows) were involved in the collection of OMEX I data.
Data Availability
Field data collected during OMEX I have been published by BODC as a CD-ROM product, entitled:
- OMEX I Project Data Set (two discs)
Further descriptions of this product and order forms may be found on the BODC web site.
The data are also held in BODC's databases and subsets may be obtained by request from BODC.
Data Activity or Cruise Information
Data Activity
Start Date (yyyy-mm-dd) | 1994-01-20 |
End Date (yyyy-mm-dd) | 1994-01-31 |
Organization Undertaking Activity | Proudman Oceanographic Laboratory (now National Oceanography Centre, Liverpool) |
Country of Organization | United Kingdom |
Originator's Data Activity Identifier | STABLE2 |
Platform Category | fixed benthic node |
Lander Deployment Information
OMEX STABLE2 Rig
Site | on the OMEX transect, near OMEX1 site |
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Position | 49.3929° N, 11.6699° W |
Water depth | 880 m |
Deployed | 20 Jan 1994 from RRS Charles Darwin (CD84) |
Recovered | 31 Jan 1994 from RRS Charles Darwin (CD84) |
Cruise
Cruise Name | CD84 |
Departure Date | 1994-01-18 |
Arrival Date | 1994-02-02 |
Principal Scientist(s) | Peter J Statham (University of Southampton Department of Oceanography) |
Ship | RRS Charles Darwin |
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 |