Improving direct runoff estimations through modyfying SCS-CN initial abstraction ratio in a catchment prone to flash floods

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00020711%3A_____%2F19%3A00004819" target="_blank" >RIV/00020711:_____/19:00004819 - isvavai.cz</a>
Result on the web
<a href="https://www.sgem.org/index.php/elibrary?view=publicationandtask=showandid=5634" target="_blank" >https://www.sgem.org/index.php/elibrary?view=publicationandtask=showandid=5634</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5593/sgem2019/3.1/S12.037" target="_blank" >10.5593/sgem2019/3.1/S12.037</a>

Result language
angličtina
Original language name
Improving direct runoff estimations through modyfying SCS-CN initial abstraction ratio in a catchment prone to flash floods
Original language description
Simulating direct runoff is vital, especially with regard to flash floods. The frequency of flash flood events increases as they are concomitant phenomena of the climate change. Considering the difficult prediction and rapid onset, as well as often lack of input data, the Soil Conservation Service curve number procedure (SCS-CN) poses a useful approach applied globally. Nevertheless, the method was developed for small agricultural watersheds in the USA, thus demanding corresponding modifications in order to provide relevant outputs in different environments. This work focuses on optimization of the initial abstraction ratio in the Husi potok catchment, the Czech Republic. In this watershed, severe flash flood events occurred in summer 2009 and 2010. Proper estimation of surface runoff is therefore a crucial issue here. The analysis of the initial abstraction ratio values was carried out using pairs of rainfall and discharge measurements. The results outline that the original value of the initial abstraction ratio 0.2 is too high and should be decreased. The identified values were then incorporated in direct runoff simulations to validate the results.
Czech name
—
Czech description
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Project
<a href="/en/project/UH0382" target="_blank" >UH0382: Recreational Potential of water in Prague - Status and Perspectives</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
19th International Multidisciplinary Scientific GeoConference SGEM 2019
ISBN
978-619-7408-81-2
ISSN
1314-2704
e-ISSN
—
Number of pages
9
Pages from-to
281-288
Publisher name
SGEM World Science
Place of publication
Sofia, Bulharsko
Event location
Albena, Bulharsko
Event date
Jun 30, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
—

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