Baltic Sea Monitoring data

LL17 Statistics

Download data from this station: LL17.zip (1900-2021)
ParameterNo. of
measurements
No. of
years with data
Timeseries plotSeasonal Surface Mean
Chlorophyll a73041 Jan + Feb MeanSeasonal Mean and
Hydrogen Sulphide82250 - -
Alkalinity97329 Jan + Feb MeanSeasonal Mean and
Total Nitrogen358048 Jan + Feb MeanSeasonal Mean and
pH400975 Jan + Feb MeanSeasonal Mean and
Total Phosphorus418652 Jan + Feb MeanSeasonal Mean and
Silicate446353 Jan + Feb MeanSeasonal Mean and
Nitrite460452 Jan + Feb MeanSeasonal Mean and
Ammonium472552 Jan + Feb MeanSeasonal Mean and
Nitrate494554 Jan + Feb MeanSeasonal Mean and
Phosphate588858 Jan + Feb MeanSeasonal Mean and
Dissolved Oxygen816886 Jan + Feb MeanSeasonal Mean and
Salinity1002494 Jan + Feb MeanSeasonal Mean and
Temperature1017494 Jan + Feb MeanSeasonal Mean and
Total count67291 --
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