Baltic Sea Monitoring data

BY9 Statistics

Download data from this station: BY9.zip (1900-2021)
ParameterNo. of
measurements
No. of
years with data
Timeseries plotSeasonal Surface Mean
Hydrogen Sulphide1910 - -
Chlorophyll a848 - -
Alkalinity65322 Jan + Feb MeanSeasonal Mean and
pH126936 Jan + Feb MeanSeasonal Mean and
Total Nitrogen159848 Jan + Feb MeanSeasonal Mean and
Nitrite168248 Jan + Feb MeanSeasonal Mean and
Ammonium171347 Jan + Feb MeanSeasonal Mean and
Nitrate194749 Jan + Feb MeanSeasonal Mean and
Total Phosphorus196749 Jan + Feb MeanSeasonal Mean and
Silicate208548 Jan + Feb MeanSeasonal Mean and
Phosphate251559 Jan + Feb MeanSeasonal Mean and
Dissolved Oxygen344760 Jan + Feb MeanSeasonal Mean and
Temperature393461 Jan + Feb MeanSeasonal Mean and
Salinity393861 Jan + Feb MeanSeasonal Mean and
Total count26851 --
The table shows the different parameters measured on this HELCOM station in the first column. The second and third column lists the total number of measured values and the number of years for which the parameter has been measured. If there is data (winter values) in two or more years, the fourth column contains a link to a smoothed timeseries plot of the winter values. If there is data in the last 10 years, the fifth column contains a link to a seasonal mean plot of data since 1979. You can choose which year (last 10 years) you want to plot together with the mean. Only years with data appears in the comboboxes.

The plot(s) below shows the data density i.e. the number of measurements per year of each parameters vs. time.

Station map