Sammendrag
The biodiversity of the Norwegian Sea is huge. This ocean area is the home of large and international important stocks of fish and sea birds, and it also houses unique cold water coral reefs. With this in mind we have assembled new data with the aim to quantify ocean acidification in terms of pH and degree of carbonate saturation of the Norwegian Sea.
Time series of oceanographic data are of vital importance for ocean acidification studies, and in this work we have used data from Ocean Weather Station M in the Norwegian Sea in addition to data from the CARINA data base. The seasonal cycle is the most striking characteristics of oceanographic parameters in our ocean areas. On top of this is an anthropogenic signal which might be hard to discover. However, today we have available both methods and data which enable us to calculate the present status of the ocean acidification, to separate anthropogenic changes from the natural variation of the carbon system, and to determine the changes in the ocean acidification since the mid 90ties.
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