by EFAS Hydrological Data Collection Centre
During the month of October, there were 176 stations with exceedances, which is twice the number of the previous month. Most of the stations are located in Italy (65), related with the water level variable. In Slovenia there are 49 stations and in Spain there are 20 stations with exceedances.
Additionally, there are 11 stations in Austria, nine in Croatia and five in Poland and Ireland with exceedances. The following countries have recorded three ore less stations with exceedances this month: Switzerland, Hungary, Ukraine, Slovakia, Sweden, Bosnia and Herzegovina, Germany, and Norway.
As for the river basins, the main river basin with values above the thresholds this month is again the Po River, with 65 stations in two different countries, with Italia standing out. The Danube River in seven countries is the next river basin with the highest number of stations (58), followed by the Soca-Isonzo River basin with 13 stations showing exceedances in Slovenia. A total of 23 different river basins experienced exceedances in October.
In terms of recorded values of mean discharge above the 90% quantile, 171 stations exceeded this threshold during October. In October, Spain was the countries with the most stations in this situation (100), Ireland (14) and Luxembourg (13). The Spanish stations are distributed in eleven different river basins, highlighting the Minho River, with 36 stations exceeding this quantile. In Ireland there are seven basins affected, while in Luxembourg only the Rhine river basin is affected. In the United Kingdom, seven stations have values above this quantile. In France, six stations exceed this cliff. Other stations exceed the 90% quantile value in up to 17 countries.
By river basin, the aforementioned Minho River stands out with 36 stations above the 90% quantile. The Ebro River basin (Spain) is the second with the highest number of stations over this cliff, showing 25 stations in this situation and followed by the Guadiana river basin (Spain) with 17 stations. A total of 50 different river basins have exceedances over the 90% quantile in October.
Finally, and according to the number of stations recording mean values below the 10% quantile, in October there were 100 stations with average values below this cliff at 18 different countries.
This month, Spain is the country with most of the stations (20), followed by Austria with 13 stations and Poland with 12 stations. Germany and Romania have eight stations with values below this threshold. With six stations we find France. Another 12 countries show five or less stations in this situation.
In terms of river basin, this month the Danube River is the one with the highest number of cases, with 49 stations with an average discharge below the 10% quantile. The Ebro River has 8 stations, same that the Oder river basin. In total, as many as 21 different basins have values below this limit in Europe.