2009 - 2011 Centre for Environment, Fisheries & Aquaculture Science (Cefas) North Sea and English Channel Sediment Pigment and Porosity Analysis
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).
dataset
http://data.cefas.co.uk/#/View/694/
function: order
CEFASd5d473b1-9d1a-4b15-870c-16f122c2bc44
http://www.cefas.co.uk/
eng
OGP
urn:ogc:def:crs:EPSG::4326
oceans
revision
2011-03-25
publication
2008-06-01
publication
2008-06-01
-6
5
56.75
49
revision
2010-05-18
2009-01-01
2011-12-31
publication
2016-07-14
notPlanned
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 cm <sup>...</sup> and a seawater density of 1.035 g cm <sup>...</sup> . 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
Public data (Crown Copyright) - Open Government Licence Terms and Conditions apply
Public data (Crown Copyright) - Open Government Licence Terms and Conditions apply
Data Manager
Centre for Environment, Fisheries & Aquaculture Science
Cefas Lowestoft Laboratory
Pakefield Road
Lowestoft
NR33 0HT
UK
+44 (0)1502 562244
originator
Data Manager
Centre for Environment, Fisheries & Aquaculture Science
Cefas Lowestoft Laboratory
Pakefield Road
Lowestoft
NR33 0HT
UK
+44 (0)1502 562244
custodian
Data Manager
Centre for Environment, Fisheries & Aquaculture Science
Cefas Lowestoft Laboratory
Pakefield Road
Lowestoft
NR33 0HT
UK
+44 (0)1502 562244
pointOfContact
2016-07-14T12:28:23