Baltic Sea Monitoring data

ARHHOR2 Statistics

Download data from this station: ARHHOR2.zip (1900-2021)
ParameterNo. of
measurements
No. of
years with data
Timeseries plotSeasonal Surface Mean
Ammonium74116 Jan + Feb MeanSeasonal Mean and
Silicate74516 Jan + Feb MeanSeasonal Mean and
Total Phosphorus161241 Jan + Feb MeanSeasonal Mean and
Total Nitrogen165441 Jan + Feb MeanSeasonal Mean and
Phosphate175744 Jan + Feb MeanSeasonal Mean and
Nitrate179744 Jan + Feb MeanSeasonal Mean and
Chlorophyll a211639 Jan + Feb MeanSeasonal Mean and
Dissolved Oxygen400544 Jan + Feb MeanSeasonal Mean and
Salinity410044 Jan + Feb MeanSeasonal Mean and
Temperature412944 Jan + Feb MeanSeasonal Mean and
Total count22656 --
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