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Metadata Report for BODC Series Reference Number 487843


Metadata Summary

Data Description

Data Category CTD or STD cast
Instrument Type CTD/STD cast
Instrument Mounting research vessel
Originating Country United Kingdom
Originator -
Originating Organization Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory (now Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Processing Status banked
Online delivery of data Download available - Ocean Data View (ODV) format
Project(s) Joint Nutrient Study II (JoNuS)
 

Data Identifiers

Originator's Identifier CI01/96/107
BODC Series Reference 487843
 

Time Co-ordinates(UT)

Start Time (yyyy-mm-dd hh:mm) 1996-01-16 19:38
End Time (yyyy-mm-dd hh:mm) -
Nominal Cycle Interval 1.0 metres
 

Spatial Co-ordinates

Latitude 50.08350 N ( 50° 5.0' N )
Longitude 2.99880 W ( 2° 59.9' W )
Positional Uncertainty Unspecified
Minimum Sensor or Sampling Depth 2.0 m
Maximum Sensor or Sampling Depth 60.5 m
Minimum Sensor or Sampling Height 4.5 m
Maximum Sensor or Sampling Height 63.0 m
Sea Floor Depth 65.0 m
Sea Floor Depth Source -
Sensor or Sampling Distribution Variable common depth - All sensors are grouped effectively at the same depth, but this depth varies significantly during the series
Sensor or Sampling Depth Datum Instantaneous - Depth measured below water line or instantaneous water body surface
Sea Floor Depth Datum Instantaneous - Depth measured below water line or instantaneous water body surface
 

Parameters

BODC CODERankUnitsTitle
ACYCAA011DimensionlessSequence number
PRESPR011DecibarsPressure (spatial coordinate) exerted by the water body by profiling pressure sensor and correction to read zero at sea level
PSALPR011DimensionlessPractical salinity of the water body by conductivity cell and computation using UNESCO 1983 algorithm
TEMPST011Degrees CelsiusTemperature of the water body by CTD or STD

Definition of Rank

  • Rank 1 is a one-dimensional parameter
  • Rank 2 is a two-dimensional parameter
  • Rank 0 is a one-dimensional parameter describing the second dimension of a two-dimensional parameter (e.g. bin depths for moored ADCP data)

Problem Reports

No Problem Report Found in the Database


Data Access Policy

Centre for Environment, Fisheries and Aquaculture Science (Cefas) data access conditions

The Centre for Environment, Fisheries and Aquaculture Science (Cefas) is an Executive Agency of the Department of Environment, Food and Rural Affairs (Defra), formerly the Ministry of Agriculture, Fisheries and Food (MAFF). It was also known previously as the Directorate of Fisheries Research (DFR). This data policy refers to data collected by the organisation under all titles.

  • These data have no specific confidentiality restrictions for academic users. However data are restricted for commercial requests and clearance must be obtained by BODC from Cefas before they are released.
  • 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 acknowledgement.
  • The recommended acknowledgement is: "This study uses data from the Centre for Environment, Fisheries and Aquaculture Science (Cefas), provided by the British Oceanographic Data Centre."

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
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
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
Q value below limit of quantification