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Dissolved oxygen (including hydrogen sulphide expressed as negative oxygen) is presented for the bottom water

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Summary of the Swedish National Marine Monitoring Programme 2020

Appendix I

Seasonal cycles from monthly and high frequency stations sampled 2020.

Surface water (0-10 m): including comparison to the mean and standard deviation for the period 2001-2015 for each month at each station. Included parameters are salinity, temperature, dissolved inorganic phosphorus (DIP), dissolved inorganic nitrogen (DIN; sum of ammonium, nitrate and nitrite), dissolved silica, total nitrogen, total phosphorus, chlorophyll, pH, alkalinity, humic

substances, dissolved oxygen and oxygen saturation. Dissolved oxygen (including hydrogen sulphide expressed as negative oxygen) is presented for the bottom water.

Data for oxygen is primarily from the water sampling, but if data is missing, values from sensors on the CTD are presented instead. Data for salinity and temperature is primarily from sensors on the CTD. Data in the time series for bottom oxygen is only from water samples.

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