Geoscience Reference
In-Depth Information
Cross-Section Changes in the Lower Part
of a Mountain River After the Flood in Spring
2010, as Presented by Means of CCHE2D
Program
Andrzej Stru˙y ´ ski, Maciej Wyr˛bek, Mateusz Struty´ ski,
and Krzysztof Kulesza
1
Introduction
The turn of spring and summer 2010 in Poland was characterized by extremely heavy
rainfall which led to two major floods affecting the territory of the whole country.
Measurements of morphological changes in a mountain river Białka in the Tatra
Mountains on 12-14 May 2010 turned out to be made immediately before the flood.
Inventory measurements conducted afterwards, i.e., on 1-2 July 2010 illustrated the
river activity during the flood. On the basis of the measurements and hydrological data
obtained from the Institute of Meteorology and Water Management (IMGW), a two-
dimensional CCHE2D computer model was launched, in which a simulation of the
river bottom changes during the flood wave passing was conducted. The Białka River
has a bedload composed of pebbles reaching even 0.5 m in diameter. The model of
bedload transport was launched using Wu, Jia, and Wang equation (Wu et al. 2000 ).
2 Researched Object
The Białka River flows in the Tatra Mountains region in South Poland. It is formed
from joining the Biela Voda (Slovakia) and the Rybi Potok (Poland). According to
the research conducted in 1955-2004, regarding the biodiversity, in her lower reach
the Białka River is the first class, i.e., the highest class river (Kulesza et al 2004 ).
Search WWH ::




Custom Search