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File: 'EMODnet-Biology-Phytoplankton-Interpolated-Maps.zip'

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Probability maps for different phytoplankton species in the North Sea [dasid=6588] show more

File properties

FilenameEMODnet-Biology-Phytoplankton-Interpolated-Maps.zip
Direct linkhttps://mda.vliz.be/directlink.php?fid=VLIZ_00000727_6077083855d39051860023
DatatypeBiotic data
MIMEtypeapplication/x-zip-compressed
AuthorsA. Barth, Willem Stolte, C. Troupin & Luuk van der Heijden
DataproviderEMODnet-Biology
Email Dataproviderbio@emodnet.eu
Conditions of useCC-BY
Creationdate2021-04-14
SubmitterFernandez Salvador
Submit date2021-04-14 15:20:24
Archived byFernandez Salvador
Archive date2021-04-14 15:23:22
PathEMODnet - Public/Data products/2020/
Start year1995
End year2020
Summary
DescriptionThis data product is a series of probability of occurrence maps for 200 phytoplankton species from 1995 to 2015 in the Greater North Sea, based on a neural network analysis. The input data files have been produced by Deltares (Luuk van der Heijden, Willem Stolte). They used EMODnet-Biology data as a basis. The selection of relevant datasets was optimized in order to find all planktonic species, and exclude all species that are not planktonic. The occurences from EMODnet Biology were complemented with absence data assuming fixed species lists within each dataset and year. In addition to the occurrence data, the environmental variables bathymetry, silicate, phosphate and nitrate concentrations were used. Additionally the position (latitude and longitude) and the year are provided to the neural network. DIVAnd (n-dimensional Data-Interpolating Variational Analysis) and the neural network library Knet were used in this analysis.
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Metadata

Content
Biotic composition phytoplankton
Data origin
Materials and Methods
Sampling device
Sampling frequency
Matrix
Measurements
Parameter group
Parameter
Temporal scope
First date 1995
Last date 2020
Geographic scope
Sea area(s)
Coordinate reference
Location
Additional information
Label
Link file