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Investigation of extreme floods in Hungary
concerning IMPACT project
László Nagy National Water Authority,
Budapest, Hungary
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Where we are ?
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Carpathian Basin
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Inundation map
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Hungarian Answer
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Carpathian Basin
Duna-valley in the Carpathian basin 547 dike failures
Tisza-valley in the Carpathian basin 1269 dike failures
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WP 2: Breach formation
The Hungarian party is going to contribute:
•Investigation and report of dike failures in the past 200 years in the Carpathian basin (statistical datas of breach mechanism, lenght, etc.)
•Contribution and expertise on the earlier breaches e.g. Tarpa breaches in 2001.
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Levee breach, River Tisza right bank, Tarpa - Tivadar section, 54+650 and 55+350 tkm
Total volume of water flowed out through the two breaches were
120 - 140 million m3
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not well identified13%
rainfall and snowmelt
14%
snowmelt26%
rainfall27%
ice jam flood20%
Origin of the flood causing failure
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Levee breach, River Tisa right bank, Tarpa - Tivadar section, 54+650 and 55+350 tkm
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WP 3: Flood propagation:
The Hungarian party is going to contribute:
•Propagation of inundation in protected flood plain basin as a consequence of levee failure,
•Expertise on the earlier inundations e.g. Tarpa breaches in 2001.
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Inundations due to the levee breaches in the Upper-Tisa basin in the vicinity of the Ukr-Hun border
Túr
Szamos
Tisza
Borzsa
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Ukraine, BagolyszállásUkraine, Bagolyszállás
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Thank you for your kind attention!
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Planned Flood
Retention Basins