Baltic Sea Monitoring data

OMIOW4 Statistics

Download data from this station: OMIOW4.zip (1900-2021)
ParameterNo. of
measurements
No. of
years with data
Timeseries plotSeasonal Surface Mean
Hydrogen Sulphide11 - -
Alkalinity173 - -
pH11118 - -
Total Nitrogen24323 Jan + Feb MeanSeasonal Mean and
Total Phosphorus29523 Jan + Feb MeanSeasonal Mean and
Ammonium45630 Jan + Feb MeanSeasonal Mean and
Chlorophyll a55612 Jan + Feb MeanSeasonal Mean and
Silicate116534 Jan + Feb MeanSeasonal Mean and
Nitrate163350 Jan + Feb MeanSeasonal Mean and
Nitrite166950 Jan + Feb MeanSeasonal Mean and
Phosphate184851 Jan + Feb MeanSeasonal Mean and
Dissolved Oxygen766274 Jan + Feb MeanSeasonal Mean and
Salinity1083791 Jan + Feb MeanSeasonal Mean and
Temperature1161891 Jan + Feb MeanSeasonal Mean and
Total count38111 --
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