Identification

Title

North Sea and English Channel Sediment Pigment and Porosity Analysis

Abstract

Measurements of Chlorophyll A concentrations and porosity in sediment samples collected by box core from a range of soft sediments in the English and Dutch sectors of the Greater North Sea, for three surveys on RV Cefas Endeavour (Cruise Codes CEND 15/09, CEND 11/10 and CEND 11/11).

Resource type

dataset

Resource locator

https://data.cefas.co.uk/view/694

name: Cefas Data Portal

description: The Cefas Data Portal contains metadata records and data sets available to download and connect to in support of our commitment to open science. Data is available in the following formats: Binary download, CSV.

function: download

Unique resource identifier

code

CEFAS694

codeSpace

https://data.cefas.co.uk

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

oceans

Keywords

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

publication

effective date

2008-06-01

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

revision

effective date

2011-03-25

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

revision

effective date

2011-03-25

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

publication

effective date

2008-06-01

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

revision

effective date

2010-05-18

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

publication

effective date

2012-01-11

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

publication

effective date

2012-01-11

Geographic location

West bounding longitude

-6.00

East bounding longitude

5.00

North bounding latitude

56.75

South bounding latitude

49.00

Temporal reference

Temporal extent

Begin position

2009-01-01

End position

2011-12-31

Dataset reference date

date type

publication

effective date

2013-11-21

date type

revision

effective date

2023-01-31

date type

creation

effective date

2013-01-16

Frequency of update

notPlanned

Quality and validity

Lineage

Porosity is the fraction of void space in a material. Here the material is sediment and the voids between the sediment grains are filled with seawater. Porosity (symol Φ, phi) is expressed as the volume of the void divided by the volume of the whole sample, so is given as a fraction between 0 and 1. Intact sediment cores were either sliced in 1 cm horizons to a depth of 10 cm, or treated as two bulk samples (0-5 cm, and 5-10 cm). Porosity was calculated using the dry weight and wet weight of known volumes of sediment, assuming a sediment particle density of 2.7 g cm3 and a seawater density of 1.035 g cm3. Chlorophyll concentration was determined by Fluorometry, following a standard operating procedure. Records include data from Defra funded project ME5301 entitled 'Mapping the structure, function and sensitivity of seabed sediment habitats to support assessment of the sea-floor status and the broadscale monitoring and management of the benthic environment' which sampled locations in the North Sea and western English Channel. Further details of the project can be found at: `http://randd.defra.gov.uk/Default.aspx?Menu=Menu&Module=More&Location=None&Completed=2&ProjectID=16812`_ .. _`http://randd.defra.gov.uk/default.aspx?menu=menu&module=more&location=none&completed=2&projectid=16812`: http://randd.defra.gov.uk/Default.aspx?Menu=Menu&Module=More&Location=None&Completed=2&ProjectID=16812

Conformity

Conformity report

specification

title

reference date

date type

publication

effective date

2013-12-10

degree

false

explanation

See the referenced specification

Conformity report

specification

title

reference date

date type

publication

effective date

2010-12-08

degree

true

explanation

See the referenced specification

Data format

name of format

Unknown

version of format

Constraints related to access and use

Constraint set

Limitations on public access

Constraint set

Limitations on public access

Responsible organisations

Responsible party

organisation name

Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS)

full postal address

Cefas Lowestoft Laboratory

Pakefield Road

Lowestoft

NR33 0HT

UK

email address

data.manager@cefas.co.uk

responsible party role

originator

Responsible party

organisation name

Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS)

full postal address

Cefas Lowestoft Laboratory

Pakefield Road

Lowestoft

NR33 0HT

UK

email address

data.manager@cefas.co.uk

responsible party role

custodian

Responsible party

organisation name

Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS)

full postal address

Cefas Lowestoft Laboratory

Pakefield Road

Lowestoft

NR33 0HT

UK

email address

data.manager@cefas.co.uk

responsible party role

distributor

Responsible party

organisation name

Department for Environment, Food and Rural Affairs (DEFRA)

email address

defra.helpline@defra.gov.uk

responsible party role

owner

Metadata on metadata

Metadata point of contact

organisation name

Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS)

full postal address

Cefas Lowestoft Laboratory

Pakefield Road

Lowestoft

NR33 0HT

UK

email address

data.manager@cefas.co.uk

responsible party role

pointOfContact

Metadata date

2023-01-31T04:06:07

Metadata language