Baltic Sea Monitoring data

LL17 Statistics

Download data from this station: LL17.zip (1900-2020)
ParameterNo. of
measurements
No. of
years with data
Timeseries plotSeasonal Surface Mean
Chlorophyll a68740 Jan + Feb MeanSeasonal Mean and
Hydrogen Sulphide78149 - -
Alkalinity97329 Jan + Feb MeanSeasonal Mean and
Total Nitrogen340447 Jan + Feb MeanSeasonal Mean and
pH387674 Jan + Feb MeanSeasonal Mean and
Total Phosphorus401051 Jan + Feb MeanSeasonal Mean and
Silicate428752 Jan + Feb MeanSeasonal Mean and
Nitrite452451 Jan + Feb MeanSeasonal Mean and
Ammonium454951 Jan + Feb MeanSeasonal Mean and
Nitrate477053 Jan + Feb MeanSeasonal Mean and
Phosphate571257 Jan + Feb MeanSeasonal Mean and
Dissolved Oxygen789385 Jan + Feb MeanSeasonal Mean and
Salinity975193 Jan + Feb MeanSeasonal Mean and
Temperature990193 Jan + Feb MeanSeasonal Mean and
Total count65118 --
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