CEFAS0c33c81e-43d1-4b57-9740-8d2d6833c15b
English
dataset
Centre for Environment, Fisheries & Aquaculture Science
Data Manager
+44 (0)1502 562244
Cefas Lowestoft Laboratory
Pakefield Road
Lowestoft
Suffolk
NR33 0HT
UK
data.manager@cefas.co.uk
pointOfContact
2020-09-11T11:11:42
MEDIN Discovery Metadata Standard
Version 2.3.7
urn:ogc:def:crs:EPSG::4326
OGP
1990 - 2019 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Predictor variables and groundtruth samples for north-west European continental shelf quantitative sediment analysis
2020-09-11
publication
CEFAS0c33c81e-43d1-4b57-9740-8d2d6833c15b
http://www.cefas.co.uk/
Input data used to model sediment grain size for the north-west European
continental shelf. Data includes: Sediment groundtruth observations with
measured fractions of mud, sand and gravel, also converted to two additive
log-ratios. These total 45761 samples. Also included are the eight predictor
variables that were used to model sediment grain size. These were: Bathymetry,
Bathymetric position index at a 50-pixel radii, Bathymetric position index at
a 434-pixel radii, Distance from coast, Current speed at the seabed, Wave peak
orbital velocity at the seabed, and suspended inorganic particulate matter for
summer and winter as two separate variables.
Centre for Environment, Fisheries & Aquaculture Science
Data Manager
+44 (0)1502 562244
Cefas Lowestoft Laboratory
Pakefield Road
Lowestoft
Suffolk
NR33 0HT
UK
data.manager@cefas.co.uk
originator
Centre for Environment, Fisheries & Aquaculture Science
Data Manager
+44 (0)1502 562244
Cefas Lowestoft Laboratory
Pakefield Road
Lowestoft
Suffolk
NR33 0HT
UK
data.manager@cefas.co.uk
custodian
notPlanned
Geographic Information System
Delimited
NDGO0005
Bathymetry and Elevation
Currents
Waves
Sediment grain size parameters
Suspended particulate material
SeaDataNet P021 parameter discovery vocabulary
2011-03-25
revision
Sediment
GEMET, version 1.0
2008-06-01
publication
Geology
GEMET - INSPIRE themes, version 1.0
2008-06-01
publication
Public data (Crown Copyright) - Open Government Licence Terms and Conditions apply
otherRestrictions
Public data (Crown Copyright) - Open Government Licence Terms and Conditions apply
English
geoscientificInformation
SeaVoX Vertical Co-ordinate Coverages
2010-05-18
revision
Sediment
SeaVoX Vertical Co-ordinate Coverages
2010-05-18
revision
Water column
-13
11
48
63
1990-01-01T00:00:00.000Z
2019-01-01T00:00:00.000Z
http://data.cefas.co.uk/#/View/19766/order
dataset
Groundtruth observations were downloaded from a number of European government
agencies and academic literature. A thorough filtering of samples was
performed to delete samples collected prior to 1990 and samples where rounded
sediment fractions were recorded (suggesting the values had been estimated and
not quantitatively measured). Where sediment samples were located within the
same pixel the mean of the sediment fractions was also calculated to produce
an average value representative of that pixel. Predictor variables were
downloaded from various sources. Bathymetry data and associated derivatives
were downloaded from EMODnet bathymetry ( `http://www.emodnetbathymetry.eu/`_
). Current speed and Orbital velocity of waves at the seafloor were modelled
by Cefas staff. Suspended inorganic particulate matter layers were derived
from data downloaded from Copernicus online portal (
`http://marine.copernicus.eu/`_ ).
.. _`http://www.emodnetbathymetry.eu/`:
http://www.emodnetbathymetry.eu/
.. _`http://marine.copernicus.eu/`:
http://marine.copernicus.eu/