Metadata Report for BODC Series Reference Number 1650990
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
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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
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.
Pigments for cruises Belgica BG9714C and Charles Darwin CD110B and CD114A
Document History
Converted from CDROM documentation
Content of data series
ABCRHPP1 | Alpha-carotene plus beta-carotene |
HPLC assay of acetone extract (GF/F filtered) | |
Nanograms per litre | |
ALLOHPP1 | Alloxanthin |
HPLC assay of acetone extract (GF/F filtered) | |
Nanograms per litre | |
BCARHPP1 | Beta-carotene |
HPLC assay of acetone extract (GF/F filtered) | |
Nanograms per litre | |
BUTAHPP1 | Butanoyloxyfucoxanthin |
HPLC assay of acetone extract (GF/F filtered) | |
Nanograms per litre | |
C1C2HPP1 | Chlorophyll-c1c2 |
HPLC assay of acetone extract (GF/F filtered) | |
Nanograms per litre | |
CHLBHPP1 | Chlorophyll-b |
HPLC assay of acetone extract (GF/F filtered) | |
Nanograms per litre | |
CLC3HPP1 | Chlorophyll-c3 |
HPLC assay of acetone extract (GF/F filtered) | |
Nanograms per litre | |
CPHLFLP1 | Fluorometric chlorophyll-a |
Fluorometric assay of acetone extract (GF/F filtered) | |
Milligrams/cubic metre | |
CPHLFLP3 | Fluorometric chlorophyll-a |
Fluorometric assay of acetone extract (GF/C filtered) | |
Milligrams/cubic metre | |
CPHLFLP4 | Fluorometric chlorophyll-a |
Fluorometric assay of acetone extraction (sum of size fractions >0.2 microns) | |
Milligrams/cubic metre | |
CPHLFLP6 | Fluorometric chlorophyll-a |
Fluorometric assay of acetone extraction (sum of size fractions >GF/F) | |
Milligrams/cubic metre | |
CPHLHPP1 | HPLC chlorophyll-a |
HPLC assay of acetone extract (GF/F filtered) | |
Milligrams/cubic metre | |
CPHLPR01 | CTD chlorophyll |
Calibrated in-situ fluorometer | |
Milligrams/cubic metre | |
CPHLSSP6 | Spectrophotometric chlorophyll-a (Jeffrey and Humphrey trichromatic) |
Spectrophotometric assay of acetone extraction (sum of size fractions >GF/F) | |
Milligrams/cubic metre | |
CPHLYMP1 | Fluorometric chlorophyll-a |
Yentsch+Menzel fluorometric assay on acetone extract (GF/F filtered) | |
Milligrams/cubic metre | |
DIADHPP1 | Diadinoxanthin |
HPLC assay of acetone extract (GF/F filtered) | |
Nanograms per litre | |
DIATHPP1 | Diatoxanthin |
HPLC assay of acetone extract (GF/F filtered) | |
Nanograms per litre | |
DVCAHPP1 | Diavinyl chlorophyll-a |
HPLC assay of acetone extract (GF/F filtered) | |
Nanograms per litre | |
DVCBHPP1 | Diavinyl chlorophyll-b |
HPLC assay of acetone extract (GF/F filtered) | |
Nanograms per litre | |
FUCXHPP1 | Fucoxanthin |
HPLC assay of acetone extract (GF/F filtered) | |
Nanograms per litre | |
FVLTAQ01 | Chelsea Instruments Aquatracka fluorometer output voltage |
Output voltage sampled by analogue to digital converter | |
Volts | |
HEXOHPP1 | Hexanoyloxyfucoxanthin |
HPLC assay of acetone extract (GF/F filtered) | |
Nanograms per litre | |
LUTNHPP1 | Lutein |
HPLC assay of acetone extract (GF/F filtered) | |
Nanograms per litre | |
PBAXHPP1 | Phaeophorbide-a |
HPLC assay of acetone extract (GF/F filtered) | |
Nanograms per litre | |
PBBXHPP1 | Phaeophorbide-b |
HPLC assay of acetone extract (GF/F filtered) | |
Nanograms per litre | |
PERIHPP1 | Peridinin |
HPLC assay of acetone extract (GF/F filtered) | |
Nanograms per litre | |
PHAEFLP1 | Fluorometric phaeopigments |
Fluorometric assay of acetone extract (GF/F filtered) | |
Milligrams/cubic metre | |
PHAEFLP3 | Fluorometric phaeopigments |
Fluorometric assay of acetone extract (GF/C filtered) | |
Milligrams/cubic metre | |
PTAXHPP1 | Phaeophytin-a |
HPLC assay of acetone extract (GF/F filtered) | |
Nanograms per litre | |
PYPTHPP1 | Pyrophaeophytin-a |
HPLC assay of acetone extract (GF/F filtered) | |
Nanograms per litre | |
SCHLFLPA | Size-fractionated fluorometric chlorophyll-a |
Fluorometric assay of acetone extract (>5 micron size fraction) | |
Milligrams/cubic metre | |
SCHLFLPC | Size-fractionated fluorometric chlorophyll-a |
Fluorometric assay of acetone extract (2-5 micron size fraction) | |
Milligrams/cubic metre | |
SCHLFLPF | Size-fractionated fluorometric chlorophyll-a |
Fluorometric assay of acetone extract (0.2-2 micron size fraction) | |
Milligrams/cubic metre | |
SCHLSSPA | Size-fractionated fluorometric chlorophyll-a (Jeffrey and Humphrey trichromatic) |
Spectrophotometric assay of acetone extraction (>5 micron size fraction) | |
Milligrams/cubic metre | |
SCHLSSPC | Size-fractionated fluorometric chlorophyll-a (Jeffrey and Humphrey trichromatic) |
Spectrophotometric assay of acetone extraction (2-5 micron size fraction) | |
Milligrams/cubic metre | |
SCHLSSPN | Size-fractionated fluorometric chlorophyll-a (Jeffrey and Humphrey trichromatic) |
Spectrophotometric assay of acetone extraction (GF/F-2 micron size fraction) | |
Milligrams/cubic metre | |
VILXHPP1 | Violaxentin |
HPLC assay of acetone extract (GF/F filtered) | |
Nanograms per litre | |
ZEOXHPP1 | Zeoxantin |
HPLC assay of acetone extract (GF/F filtered) | |
Nanograms per litre |
Data Originator
Dr F. G. Figueiras, IIM, Vigo, Spain.
Sampling strategy and methodology
Water samples were filtered through GF/F filters and frozen. Back in the laboratory, the pigments were extracted into 90% acetone and fluorometrically assayed following the protocols of Yentsch and Menzel (1963). Chlorophyll data were supplied both corrected (CPHLFL01) and uncorrected (CPHLYMP1) for phaeopigment.
Comments on data quality
The HPLC analyst reported that for BG9919 fucoxanthin may contain phaeophorbides and the chlorophyll-a data loaded were the sum of chlorophyll-a and chlorophyll-a allomer.
References
Barlow, R.G., Mantoura, R.F.C., Gough, M.A. and Fileman, T.W., 1993a. Pigment signatures of the phytoplankton composition in the north-east Atlantic during the 1990 spring bloom. Deep Sea Res. II, 40, 459-477.
Barlow, R.G., Mantoura, R.F.C., Gough, M.A. and Fileman, T.W., 1993b. Phaeopigment distribution during the 1990 spring bloom in the north-east Atlantic. Deep Sea Res. I, 40, 2229-2242.
Barlow, R.G., Cummings, D.G., Mantoura, R.F.C. and Fileman, T.W., 1996. Pigment chemotaxonomic distributions of phytoplankton during summer in the western Mediterranean. Deep Sea Res. II, in press.
Jeffrey, S.W. and Humphrey, G.F., 1975. New spectrophotometric equations for determining chlorophylls a, b, c1 and c2 in higher plants, algae and natural phytoplankton. Biochem. Physiol. Pflan., 167, 191-194.
Lorenzen, C.J., 1967. Determination of chlorophyll and phaeopigments: spectrophotometric equations. Limnology and Oceanography, 12.
Tahey, T.M., Duineveld, G.C.A., Berghuis, E.M. and Helder, W., 1994. Relation between sediment-water fluxes of oxygen and silicate and faunal abundance at continental shelf, slope and deep-water stations in the North West Mediterranean. Marine Ecology Progress Series, 104, 119-130.
Thomsen. L., Graf, G., Martens, V. and Steen, E., 1994. An instrument for sampling water from the bottom nepheloid layer. Contin. Shelf Res., 14, 871-882.
Thomsen, L. and Graf, G., 1995. Benthic boundary layer characteristics of the continental margin of the western Barents Sea. Oceanologica Acta, 17/6, 597-607.
Wright, S.W., Jeffrey, S.W., Mantoura, R.F.C., Llewellyn, C.A., Bjornland, T., Repeta, D. and Welschmeyer, N., 1991. Improved HPLC method for the analysis of chlorophylls and carotenoids from marine phytoplankton. Marine Ecology Progress Series, 77, 183-196.
Yentsch, C.S. and Menzel, D.W., 1963. A method for the determination of phytoplankton chlorophyll and phaeophytin by fluoresence. Deep-Sea Res., 10, 221-231.
Project Information
Ocean Margin EXchange (OMEX) II - II
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 II - II (1997-2000)
The second phase of OMEX concentrated exclusively on the Iberian Margin, although RV Belgica did make some measurements on La Chapelle Bank whilst on passage to Zeebrugge. This is a narrow-shelf environment, which contrasts sharply with the broad shelf adjacent to the Goban Spur. This phase of the project was also strongly multidisciplinary in approach, covering physics, chemistry, biology and geology.
There were a total of 33 OMEX II - II research cruises, plus 23 CPR tows, most of which were instrumented. Some of these cruises took place before the official project start date of June 1997.
Data Availability
Field data collected during OMEX II - II have been published by BODC as a CD-ROM product, entitled:
- OMEX II Project Data Set (three 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
Cruise
Cruise Name | CD110B |
Departure Date | 1998-01-06 |
Arrival Date | 1998-01-19 |
Principal Scientist(s) | Axel E J Miller (Plymouth Marine Laboratory) |
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 |