by EFAS Hydrological Data Collection Centre

During the month of October, there were 61 stations with exceedances. Most of the stations are in Italy (15), and in Croatia (14). In Italy, the exceedances are related to the water level threshold and mainly in the north of the country. The Po river basin has the most Italian stations with exceedances (13). In Croatia, all exceedances are related to the water level threshold too and stations are based mainly on the Danube river (13).

In addition, there are nine stations in Slovenia (discharge and water level) and the same number of stations with exceedance in Spain, where the Llobregat river stands out. Norway shows five stations with exceedance on discharge variable, and the remainder of the countries with exceedances show no more than three stations each.

As for the river basins, the main one with values above the threshold is the Danube, with 23 stations in five different countries, standing out Croatia and Slovenia. With the exception of the Danube and Po rivers, the basins affected by exceedance rarely have more than one station.

In terms of the stations that recorded values above the 90% quantile, 53 exceeded this threshold in October. For another month, Spain is the country with the highest number of stations. The Spanish basins have 32 stations. Highlights in the eastern area the Jucar, standing out with ten stations, and the Ebro river with five station exceeding this threshold. The sum of 14 river basins has stations above this quantile in Spain. In Hungary and Ukraine, there are five stations that exceed this cliff. Other stations exceeded the 90% quantile value in Romania, Slovenia, and Serbia in more than one occasion.

By river basin, the Danube River again stands out with 12 stations, with exceedances along five countries, being Hungary the country with the highest number of stations. In addition to Danube and the aforementioned Jucar (10 stations), a sum of 23 different river basins shows exceedance over the 90% quantile.

Finally, and according to the number of stations recording average values below the 10% quantile, we can find a decrease of around 32%. In the month of October, there are 77 stations with average values below this cliff, which covers 15 different countries.

This month, Spain is the country with the most stations (21), followed by France (18). Italy has seven stations with values below this threshold, followed by England with six stations.

In terms of basins, this month the Ebro river is the one with the highest number of cases, with 14 station with an average discharge below the 10% quantile. The Danube river, in six different countries, has 12 stations in the same situation. In total, as many as 27 different basins have values below this limit.