by EFAS Hydrological Data Collection Centre
During the month of November, the area with the highest concentration of stations that exceed their lowest threshold (a total of 26 stations) is Norway, mainly in the south of the country. In central Europe there are several stations located along the Oder River in Poland, exceeding their threshold levels. The situation in the Danube river basin is also notable with scattered stations in Austria, Slovenia, Hungary, Croatia, Czechia, and Romania. In the Po river basin, there are still 5 stations with water level above its first threshold. This region experienced a high concentration of stations with the same situation during September and October. In Spain there are 14 stations with overshoots, mainly in the eastern region (Jucar river basin). Finally, in Iceland and Israel there is a single station with values above its threshold.
Regarding stations registering values above the 90% quantile, these are mostly located in the Scandinavian basins - where the largest concentration of stations is in the southern basins (Glomma and Drammen). Another high density of stations can be found in the Danube and Oder basins. To a minor extent, values exceeding the 90% quantile may also be seen in the south of England in the Thames basin, and in an isolated station on the Stour river. To a minor extent, other isolated stations also exceeding the 90% quantile occurred in several Spanish (Ebro, Gualdalquivir and Douro river basins) and Irish basins (Moy and Suck rivers). Remote stations in Ukraine (Dnieper and Dniester basins), Scotland (Lochy river), the southeast of France (Agly river), and Switzerland (Hinterrhein river) also exceeded the 90% quantile.
Finally, stations registering values below the 10% quantile were mainly located in Germany (Rhine, Danube, and Elbe basins), Ukraine (Dnieper, Dniester, and Danube basins) and the southeast of Sweden. A lower concentration of stations can be found in the southern Danube basin (Serbia and Bulgaria), and isolated stations also showing values below the 10% quantile were located in the Cabrera river (Spain), Lagen river (Norway), Thames river (England), Maritsa river (Bulgaria), Harmas-Koros river (Hungary), and Oder river in Poland.