Erosion and accumulation flood Iandforms in Sázava River in spring 2006
Příspěvek v časopisu
Trvalý odkaz
http://hdl.handle.net/20.500.11956/161819Identifikátory
Kolekce
- GEOBIBLINE - plné texty [10555]
Autor
Datum vydání
2010Klíčová slova (česky)
geologie, přírodaKlíčová slova (anglicky)
floodplain, flood accumulations, channel bars, bank scours, floodThis article deals with channel bars, flood accumulations of floodplain and bank scours as the most important geomorphologic effects of the spring flood in Sázava River in 2006. The article deals particularly with its spatial distribution with regard to the channel position and weirs. Relation between basic characteristics of sediments of these channel bars is surveyed. Spatial and statistical analyses were done in ArcGIS 9.2 and STATISTICA 8 Standard based on input data from field geomorphological mapping after the flood in 2006, it follows that there is a relation between spatial distribution of channel bars and flood accumulations in floodplain. There is also a relation between channel bars and bank scours. It emerged that spatial distribution of channel bars, flood accumulations in floodplain and bank scours is uneven and connected to weirs whose immediate effective sedimentary influence reaches in Sázava River to 60 distances. Smaller channel bars connected to banks are typical for parts of river which are not influenced by weirs. Channel bars can be used for placement prediction of flood accumulations in floodplain