BRÁZDIL, Rudolf, Petr DOBROVOLNÝ and Jarmila MACKOVÁ. Long-term fluctuations of floods in the Czech Republic. In Geophysical Research Abstracts, EGU General Assembly, Vol. 8. Vienna: European Geophysical Union, 2006, p. 1. ISSN 1029-7006.
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Basic information
Original name Long-term fluctuations of floods in the Czech Republic
Name in Czech Dolohodobé kolísání povodní v České republice
Name (in English) Long-term fluctuations of floods in the Czech Republic
Authors BRÁZDIL, Rudolf (203 Czech Republic, guarantor), Petr DOBROVOLNÝ (203 Czech Republic) and Jarmila MACKOVÁ (203 Czech Republic).
Edition Vienna, Geophysical Research Abstracts, EGU General Assembly, Vol. 8, p. 1-1, 2006.
Publisher European Geophysical Union
Other information
Original language Czech
Type of outcome Proceedings paper
Field of Study 10000 1. Natural Sciences
Country of publisher Austria
Confidentiality degree is not subject to a state or trade secret
RIV identification code RIV/00216224:14310/06:00024589
Organization unit Faculty of Science
ISSN 1029-7006
Keywords in English floods; long term trends; Czech Republic
Tags Czech Republic, floods, long term trends
Tags International impact
Changed by Changed by: Mgr. Jarmila Burianová, Ph.D., učo 14941. Changed: 14/5/2009 13:04.
Abstract
The paper presents results of analysis of flood series in the instrumental period for the Elbe,Děčín (1851 to 2003), the Vltava, Prague (1825 to 2003), the Ohře, Louny (1884 to 2003), the Odra, Bohumín (1896 to 2003) and the Morava, Kroměříž (1881 to 2003). Sea level pressure patterns based on PCA are analysed for floods of the winter synoptic type (snow melting, ice damming) and of summer synoptic type (heavy precipitation). There is a significant decrease in the number of floods and their severity (expressed by a return period of maximum peak discharges) from the 2nd part of the 19th century to the end of the 20th century. It is consistent with global warming with significant decrease in the number of winter floods. Above series of floods are extended into the pre-instrumental period based on different kinds of documentary evidence (e.g. narrative reports, newspapers, watermarks) and presented in decadal frequencies since the 15th century. The most disastrous floodings in the territory of the Czech Republic during past millennium were recorded in the years 1118, 1432, 1501, 1598, 1655, 1675, 1784, 1845, 1862, 1872, 1890, 1903, 1938, 1997, 2002. Since 1872 all catastrophic flood events were caused by extreme precipitation. Synthesis of documentary and instrumental floods shows long term flood trends with maximum of floods during the 19th century and the 2nd part of the 16th century. The 20th century belonged to relatively very quiet periods.
Abstract (in English)
The paper presents results of analysis of flood series in the instrumental period for the Elbe,Děčín (1851 to 2003), the Vltava, Prague (1825 to 2003), the Ohře, Louny (1884 to 2003), the Odra, Bohumín (1896 to 2003) and the Morava, Kroměříž (1881 to 2003). Sea level pressure patterns based on PCA are analysed for floods of the winter synoptic type (snow melting, ice damming) and of summer synoptic type (heavy precipitation). There is a significant decrease in the number of floods and their severity (expressed by a return period of maximum peak discharges) from the 2nd part of the 19th century to the end of the 20th century. It is consistent with global warming with significant decrease in the number of winter floods. Above series of floods are extended into the pre-instrumental period based on different kinds of documentary evidence (e.g. narrative reports, newspapers, watermarks) and presented in decadal frequencies since the 15th century. The most disastrous floodings in the territory of the Czech Republic during past millennium were recorded in the years 1118, 1432, 1501, 1598, 1655, 1675, 1784, 1845, 1862, 1872, 1890, 1903, 1938, 1997, 2002. Since 1872 all catastrophic flood events were caused by extreme precipitation. Synthesis of documentary and instrumental floods shows long term flood trends with maximum of floods during the 19th century and the 2nd part of the 16th century. The 20th century belonged to relatively very quiet periods.
Links
GA205/03/Z016, research and development projectName: Historické a současné povodně v České republice: příčiny, sezonalita, trendy, dopady
Investor: Czech Science Foundation, Historical and recent floods in the Czech Republic: causes, sezonality, trends, impacts
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