Metadata Report for BODC Series Reference Number 1683878


Metadata Summary

Data Description

Data Category Water sample data
Instrument Type
NameCategories
Non-toxic sea water supply  continuous water samplers
Instrument Mounting research vessel
Originating Country United Kingdom
Originator Dr Victoria Hill
Originating Organization Southampton Institute of Higher Education Coastal Studies (now Southampton Solent University School of Maritime and Coastal Studies)
Processing Status banked
Project(s) Atlantic Meridional Transect (AMT)
 

Data Identifiers

Originator's Identifier AMT10_GPUMP_PIGX_222:
BODC Series Reference 1683878
 

Time Co-ordinates(UT)

Start Time (yyyy-mm-dd hh:mm) 2000-04-13 18:30
End Time (yyyy-mm-dd hh:mm) 2000-05-06 09:00
Nominal Cycle Interval -
 

Spatial Co-ordinates

Southernmost Latitude 35.08670 S ( 35° 5.2' S )
Northernmost Latitude 49.32303 N ( 49° 19.4' N )
Westernmost Longitude 42.92470 W ( 42° 55.5' W )
Easternmost Longitude 6.00002 W ( 6° 0.0' W )
Positional Uncertainty Unspecified
Minimum Sensor Depth 6.0 m
Maximum Sensor Depth 6.0 m
Minimum Sensor Height -
Maximum Sensor Height -
Sea Floor Depth -
Sensor Distribution Unspecified -
Sensor Depth Datum Unspecified -
Sea Floor Depth Datum Unspecified -
 

Parameters

BODC CODE Rank Units Short Title Title
AADYAA01 1 Days Date(Loch_Day) Date (time from 00:00 01/01/1760 to 00:00 UT on day)
AAFDZZ01 1 Days Time(Day_Fract) Time (time between 00:00 UT and timestamp)
ALATGP01 1 Degrees Lat_GPS Latitude north (WGS84) by unspecified GPS system
ALLOHPP1 1 Nanograms per litre alloxanthin_water>GF/F_HPLC Concentration of alloxanthin {CAS 28380-31-6} per unit volume of the water body [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC)
ALONGP01 1 Degrees Lon_GPS Longitude east (WGS84) by unspecified GPS system
BUTAHPP1 1 Nanograms per litre 19'-butanoyloxyfucoxanthin_water>GF/F_HPLC Concentration of 19'-butanoyloxyfucoxanthin per unit volume of the water body [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC)
CHLBHPP1 1 Nanograms per litre chl-b_water>GF/F_HPLC Concentration of chlorophyll-b {chl-b CAS 519-62-0} per unit volume of the water body [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC)
CLC2HPP1 1 Nanograms per litre chl-c2_water>GF/F_HPLC Concentration of chlorophyll-c2 {chl-c2} per unit volume of the water body [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC)
CLC3HPP1 1 Nanograms per litre chl-c3_water>GF/F_HPLC Concentration of chlorophyll-c3 {chl-c3} per unit volume of the water body [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC)
CPHLHPP1 1 Milligrams per cubic metre chl-a_water>GF/F_HPLC Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC)
DVCAHPP1 1 Nanograms per litre DVchl-a_water>GF/F_HPLC Concentration of divinyl chlorophyll-a per unit volume of the water body [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC)
FUCXHPP1 1 Nanograms per litre fucoxanthin_water>GF/F_HPLC Concentration of fucoxanthin {CAS 3351-86-8} per unit volume of the water body [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC)
HEXOHPP1 1 Nanograms per litre 19'-hexanoyloxyfucoxanthin_water>GF/F_HPLC Concentration of 19'-hexanoyloxyfucoxanthin {CAS 60147-85-5} per unit volume of the water body [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC)
PERIHPP1 1 Nanograms per litre peridinin_water>GF/F_HPLC Concentration of peridinin {CAS 33281-81-1} per unit volume of the water body [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC)
VILXHPP1 1 Nanograms per litre violaxanthin_water>GF/F_HPLC Concentration of violaxanthin {CAS 126-29-4} per unit volume of the water body [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC)
ZEOXHPP1 1 Nanograms per litre zeaxanthin_water>GF/F_HPLC Concentration of zeaxanthin {CAS 144-68-3} per unit volume of the water body [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC)
 

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

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

Non-toxic (underway) sea water supply

A source of uncontaminated near-surface (commonly 3 to 7 m) seawater pumped continuously to shipboard laboratories on research vessels. There is typically a temperature sensor near the intake (known as the hull temperature) to provide measurements that are as close as possible to the ambient water temperature. The flow from the supply is typically directed through continuously logged sensors such as a thermosalinograph and a fluorometer. Water samples are often collected from the non-toxic supply. The system is also referred to as the underway supply.

AMT10 pigment composition by HPLC analysis from surface underway samples

Data Acquisition and Analysis

These data originate from samples taken from the ships' non-toxic seawater supply at 7 m depth between 12 April and 8 May 2000. Seawater samples for HPLC analysis were filtered using Whatman GF/F filters and placed in cryovials. The samples were then flash frozen using a liquid nitrogen dry shipper for later analysis. HPLC analysis was undertaken using a photo diode array detector in order to isolate individual absorption of pigments.

References Cited

Section not relevant.

BODC Data Processing Procedures

Data were submitted to BODC in Microsoft Excel spreadsheet format and saved to the archive with reference PML020060. The file was provided to BODC with sample number, volume filtered, depth, latitude and longitude as metadata and these were checked against information held in the database and the cruise report. The originators file did not contain date or time, so the sample number was used to match samples to the cruise report log. There was a discrepancy for originators sample a10-14-nt: the date should be 25 April 2000 not 26 April 2000. The originators file also contained HPLC analysis for CTD bottle samples, which were loaded as a separate dataset (HPLC pigments, CTD bottles).

Parameter codes defined in the BODC parameter dictionary were assigned to each variable. All parameters, except Chl-a, were provided in nanograms per litre which were consistent with the units of the BODC parameter code assigned. The Chl-a values were provided in ng/l and so converted to milligrams per cubic metre. Data were then loaded to the database using established BODC data banking procedures.

A parameter mapping table is provided below.

Originator's Parameter Units Description BODC Parameter Code Units Comments
chlc3 ng l -1 Concentration of chlorophyll-a {chl-a} per unit volume of the water body [particulate <GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC) CLC3HPP1 ng l -1 -
chlc2 ng l -1 Concentration of chlorophyll-c2 {chl-c2} per unit volume of the water column [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC) CLC2HPP1 ng l -1 -
peridinin ng l -1 Concentration of peridinin per unit volume of the water column [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC) PERIHPP1 ng l -1 -
but ng l -1 Concentration of 19'-butanoyloxyfucoxanthin per unit volume of the water column [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC) BUTAHPP1 ng l -1 -
fuco ng l -1 Concentration of fucoxanthin per unit volume of the water column [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC) FUCXHPP1 ng l -1 -
hex ng l -1 Concentration of 19'-hexanoyloxyfucoxanthin per unit volume of the water column [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC) HEXOHPP1 ng l -1 -
viol ng l -1 Concentration of violaxanthin per unit volume of the water column [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC) VILXHPP1 ng l -1 -
allo ng l -1 Concentration of alloxanthin per unit volume of the water column [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC) ALLOHPP1 ng l -1 -
zea ng l -1 Concentration of zeaxanthin per unit volume of the water column [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC) ZEOXHPP1 ng l -1 -
chlb ng l -1 Concentration of chlorophyll-b per unit volume of the water body [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC) CHLBHPP1 ng l -1 -
div chla ng l -1 Concentration of divinyl chlorophyll-a per unit volume of the water column [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC) DVCAHPP1 ng l -1 -
chla ng l -1 Concentration of chlorophyll-a {chl-a} per unit volume of the water column [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC) CPHLHPP1 mg m -3 Unit conversion /1000 applied

Data Quality Report

Section not relevant.

Problem Report

Section not relevant.


Project Information

The Atlantic Meridional Transect (AMT) - Phase 1 (1995-2000)

Who was involved in the project?

The Atlantic Meridional Transect (AMT) programme was designed by and implemented as a collaboration between Plymouth Marine Laboratory (PML) and Southampton Oceanography Centre (SOC). The programme was hosted by Plymouth Marine Laboratory and involved additional researchers from UK and international universities throughout its duration.

What was the project about?

When AMT began in 1995 the programme provided a platform for international scientific collaboration, including the calibration and validation of SeaWiFs measurements and products. The programme provided an exceptional opportunity for nationally and internationally driven collaborative research and provided a platform for excellent multi-disciplinary oceanographic research. As an in situ observation system, the data collected by the AMT consortium informed on changes in biodiversity and function of the Atlantic ecosystem during this period of rapid change to our climate and biosphere.

The scientific aims were to assess:

When was the project active?

The first phase of the AMT programme ran from 1995 to 2000 and consisted of a total of 12 cruises. A second phase of funding allowed the project to continue for the period 2002 to 2006 with a further 6 cruises.

Brief summary of the project fieldwork/data

The AMT programme undertook biological, chemical and physical oceanographic research during the annual return passage of the RRS James Clark Ross between the UK and the Falkland Islands or the RRS Discovery between the UK and Cape Town, a distance of up to 13,500 km. This transect crossed a range of ecosystems from sub-polar to tropical and from euphotic shelf seas and upwelling systems to oligotrophic mid-ocean gyres. The transect route was covered north-south in September/October and south-north in April/May of each year.

The measurements of hydrographic and bio-optical properties, plankton community structure and primary production completed on the first 12 transects (1995-2000) represent the most coherent set of repeated biogeochemical observations over ocean basin scales. This unique dataset has led to several important discoveries concerning the identification of oceanic provinces, validation of ocean colour algorithms, distributions of picoplankton, identifying new regional sinks of pCO2 and variability in rates of primary production and respiration.

Who funded the project?

The programme was funded by the Natural Environment Research Council (NERC) and further support was received from the National Aeronautics and Space Administration (NASA) with equipment and funding from the Sea-viewing Wild Field-of-view Sensor (SeaWiFS) project.


Data Activity or Cruise Information

Cruise

Cruise Name JR20000412 (AMT10, JR49)
Departure Date 2000-04-12
Arrival Date 2000-05-08
Principal Scientist(s)Chris Gallienne (Plymouth Marine Laboratory)
Ship RRS James Clark Ross

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