Metadata Report for BODC Series Reference Number 487996
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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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
Cirolana 01/96 CTD Data Documentation
Introduction
Documentation for CTD data collected by R.V. Cirolana, 01/96 (4 - 31 January) of the Centre for Environment Fisheries and Aquaculture Science.
Project Information
Joint Nutrient Study II (JoNuS)
Concerns by the scientific community about the impact of nutrient inputs to the sea; a lack of information on inputs from the UK and on the spatial and temporal distribution and cycling of nutrients in UK waters provided the impetus for the JoNuS project.
JoNuS sought to quantify the input of nitrogen, phosphorus and silicon from UK estuaries to the North Sea through a good understanding of the estuarine processes that control the flow of these nutrients. JoNuS I focussed on the Great Ouse/Wash and the Humber outflows however resources available were insufficient to examine the Thames, the second largest input of nutrients from England into the southern North Sea. JoNuS II concentrated its efforts on the Thames. Its specific objectives were:
- To determine the magnitude and time variation of gross nutrient (N, P, Si) input to the heads of estuaries in the Thames and Wash catchment systems.
- To determine and quantify the processes controlling the fluxes of nutrients through the Thames estuary system.
- To determine the fluxes of nutrients through the Thames on a quantitative basis in order to determine the net input of nutrients to the sea.
- To continue the monitoring of the intra- and inter-annual changes in nutrient concentration and distribution in the Wash.
- To provide contrast to the two systems previously studied (Wash and Humber), in terms of the balance of nutrient inputs (urban waste water versus agriculture) and compare with a parallel study of two sites in the Irish Sea.
The Centre for Environment, Fisheries and Aquaculture Science (CEFAS) hosted the project, which involved scientists from CEFAS, the University of East Anglia, the University of Essex, the Southampton Oceanography Centre, (now the National Oceanography Centre, Southampton), the Department of Agriculture Northern Ireland and the National Rivers Authority (now the Environment Agency). It was funded by the then Ministry of Agriculture, Fisheries and Food and the Department of Environment, now the Department of Environment, Food and Rural Affairs, and the National Rivers Authority.
The project ran from April 1996 to March 1999, with marine field data collection between April 1996 and March 1997. Data collection involved ship based surveys which were complemented by estuarine transects and specific process studies.
Further details of the JoNuS II cruises are provided below:
Cruise identifier | Date | Comments |
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RV Cirolana CIR1/96 | 1996-01-04 - 1996-01-31 | None |
RV Cirolana CIR5A/96 | 1996-05-03 - 1996-05-19 | None |
RV Cirolana CIR7/96 | 1996-07-24 - 1996-08-01 | None |
RV Cirolana CIR9/96 | 1996-09-27 - 1996-10-14 | None |
RV Lough Foyle LF/10/97 | 1997-03-02 - 1997-03-05 | None |
Data Activity or Cruise Information
Cruise
Cruise Name | CIR1/96 |
Departure Date | 1996-01-04 |
Arrival Date | 1996-01-31 |
Principal Scientist(s) | Paul A Gurbutt (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
Ship | RV Cirolana |
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 |
---|---|
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 |