Mean winter surface concentrations of phosphate in the Greater North Sea, the Celtic Seas and the Northeast Atlantic, 2004

Mean winter surface concentrations of phosphate (combined phosphate and nitrite) in the Greater North Sea, the Celtic Seas and the Northeast Atlantic (1999-2004, Jan-Feb, 0-10 m)

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Methodology

The map is based on a .dbf file named after its season-location (e.g. wintermeans_baltic.dbf containing winter Phosphate values from the Baltic Sea, incl. longitude/latitude by station). The name location part of the name has an "OW" postfix if it contains Open Water data, otherwise data are form coastal stations. The column N₅N or PO₄ is used for wintermeans maps. The colours of the legend are based on the 20%, 40%, 60% and 80% percentiles of the indicator presented.

Additional information

Only stations with more than two years data are included. Coastal stations are marked by circles and ICES open-water stations (>20 km from coast) by squares. Level of classification is based on the 20 % 40 %, 60 % and 80 % percentiles of the indicator presented.
Geographical coverage note: The Greater North Sea, the Celtic Seas and the Northeast Atlantic

Mean winter surface concentrations of phosphate in the Greater North Sea, the Celtic Seas and the Northeast Atlantic, 2004

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References and footnotes