Baltic Sea Monitoring data

LL12 Statistics

Download data from this station: LL12.zip (1900-2020)
ParameterNo. of
measurements
No. of
years with data
Timeseries plotSeasonal Surface Mean
Hydrogen Sulphide5816 - -
Alkalinity15621 Jan + Feb MeanSeasonal Mean and
Chlorophyll a64937 - -
pH157044 Jan + Feb MeanSeasonal Mean and
Total Nitrogen193343 Jan + Feb MeanSeasonal Mean and
Total Phosphorus209045 Jan + Feb MeanSeasonal Mean and
Silicate221244 Jan + Feb MeanSeasonal Mean and
Ammonium231342 Jan + Feb MeanSeasonal Mean and
Nitrite232542 Jan + Feb MeanSeasonal Mean and
Nitrate247843 Jan + Feb MeanSeasonal Mean and
Phosphate258247 Jan + Feb MeanSeasonal Mean and
Dissolved Oxygen362351 Jan + Feb MeanSeasonal Mean and
Salinity475951 Jan + Feb MeanSeasonal Mean and
Temperature477651 Jan + Feb MeanSeasonal Mean and
Total count31524 --
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