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Historical floods in Bohemia in the work of Dresden hydrometeorologist Christian Gottlieb Pötzsch. On the occasion of the 200th anniversary of his decease
Munzar, Jan ; Ondráček, Stanislav
This year, it was 200 years that have passed since the decease of the prominent Saxon hydrometeorologist Ch.G. Pötzsch (1732-1805), author of remarkable compendium “Chronological history of large flood events on the Elbe River in a thousand and more years“. The monograph was published in Dresden in 1784 and later added two annexes (from 1786 and 1800). It is a result of many years of hard work in the collection and study of most varied historical and contemporary sources of information. For the documentation of historical floods in Czech Republic the work by Pötzsch importantly also includes a range of data on the rise and course of concrete hydrometeorological extremes in the Czech segment of the Elbe River catchment and its affluents since the author drew his knowledge not only from historical entries (German, Czech and Latin) but also from available contemporary data originating from Bohemia, forgotten or unextant today.
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Great floods in the Ostrava region in 1902 and 1903
Munzar, Jan ; Ondráček, Stanislav
The region of Ostrava cannot be thought of without floods as there are several water courses flowing together on the Ostrava Basin bottom: Odra (Oder) R. and its tributaries Opava and Ostravice. Their confluence is one of the most important hydrological junctions in the Czech Republic. Observations on the Odra River in Bohumín indicate that the most severe flood disasters experienced by the region in the 20th century were floods occurring in July 1997 and in July 1903. Less known is the fact, however, that only a year before the extreme from the beginning of the last century, in June 1902, there were also irregular floods occurring in the Ostrava region, whose impact was even more severe on some water courses, namely on the Ostravice River, than in 1903. This earlier June flood apparently resulted in a lot more damage in the Ostrava industrial agglomeration than the case that happened one year later. Regarding the fact that the time gap between the big floods from the beginning of the 20th century and the recent flood event of 1997 is nearly 100 years, the two old disasters have been forgotten which is considered a loss of historical memory in the region.
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