Identification

Title

2007 - 2008 Centre for Environment, Fisheries & Aquaculture Science (Cefas) 2007-2008 North Sea Sediment Oxygen Profiles

Abstract

This dataset records the depth to which free oxygen is available in seabed sediments; referred to as the Oxygen Penetration Depth (OPD). It also includes the original oxygen profile data, recording the depeletion of oxygen as the sediment is penetrated. Samples were collected from sites in the North Sea: Northern Dogger Bank, Oyster Ground and Sean Gasfield during various cruises on RV Cefas Endeavour throughout 2007 and 2008.

Resource type

dataset

Resource locator

Unique resource identifier

code

CEFASada68af3-ffa8-479d-87fb-a628fbbc4525

codeSpace

http://www.cefas.co.uk/

Dataset language

eng

Spatial reference system

authority code

OGP

code identifying the spatial reference system

urn:ogc:def:crs:EPSG::4326

Classification of spatial data and services

Topic category

Keywords

Keyword set

keyword value

Keyword set

keyword value

originating controlled vocabulary

title

SeaDataNet P021 parameter discovery vocabulary

reference date

date type

revision

effective date

2011-03-25

Keyword set

keyword value

originating controlled vocabulary

title

GEMET, version 1.0

reference date

date type

publication

effective date

2008-06-01

Geographic location

West bounding longitude

2

East bounding longitude

5

North bounding latitude

55.75

South bounding latitude

53

Extent

Extent group

authority code

title

SeaVoX Vertical Co-ordinate Coverages

reference date

date type

revision

effective date

2010-05-18

code identifying the extent

Temporal reference

Temporal extent

Begin position

2007-01-01

End position

2008-12-31

Dataset reference date

date type

publication

effective date

2021-12-14

Frequency of update

notPlanned

Quality and validity

Lineage

The standard methodology comprises driving a very fine metal-in-glass oxygen probe into undisturbed core samples recovered from the seabed using a box corer (NIOZ design). The probe is driven ino the sediment in millimetre depth increments, recording the 'oxygen profile' which can be displayed graphically. The depth at which the probe first records zero oxygen is the Oxygen Penetration Depth. Records include data from Defra funded project ME3205 entitled "Marine Ecosystem Connections: carbon and nitrogen fluxes through the benthic and pelagic domains" which sampled three fixed stations in the North Sea. Semi-autonomous in situ systems were deployed at each study site to follow temporal changes in environmental conditions such as temperature, light, nutrients, and chlorophyll fluorescence. Detailed studies of pelagic and benthic food webs were carried out during 8 research cruises spaced to capture seasonal changes (February , April, May, September, and October/November 2007; January, April and September 2008). Cruise sampling was focussed on identifying ecosystem structure, in terms of seabed types, physics, chemistry, and the abundance (as numbers and/or biomass) and diversity of planktonic and benthic communities (from micro- to macro- organisms). Experimental work was carried out to obtain estimates of the rates of key processes such as primary production, zooplankton secondary production, carbon cycling, and nutrient fluxes across the sediment-seawater interface (see Painting et al. 2010) Further details of the project can be found at: `http://randd.defra.gov.uk/Default.aspx?Menu=Menu&Module=More&Location=None&Completed=0&ProjectID=13011`_ .. _`http://randd.defra.gov.uk/default.aspx?menu=menu&module=more&location=none&completed=0&projectid=13011`: http://randd.defra.gov.uk/Default.aspx?Menu=Menu&Module=More&Location=None&Completed=0&ProjectID=13011

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Public data (Crown Copyright) - Open Government Licence Terms and Conditions apply

Constraint set

Limitations on public access

Public data (Crown Copyright) - Open Government Licence Terms and Conditions apply

Responsible organisations

Metadata on metadata

Metadata point of contact

contact position

Data Manager

organisation name

Centre for Environment, Fisheries & Aquaculture Science

full postal address

Cefas Lowestoft Laboratory

Pakefield Road

Lowestoft

NR33 0HT

UK

telephone number

+44 (0)1502 562244

email address

data.manager@cefas.co.uk

responsible party role

pointOfContact

Metadata date

2021-12-14T12:24:59

Metadata language

eng