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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10501 - Hydrology

Projekt

<a href="/cs/project/UH0382" target="_blank" >UH0382: Rekreační potenciál vody v Praze - stav a výhledy</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

19th International Multidisciplinary Scientific GeoConference SGEM 2019

ISBN

978-619-7408-81-2

ISSN

1314-2704

e-ISSN

—

Počet stran výsledku

9

Strana od-do

281-288

Název nakladatele

SGEM World Science

Místo vydání

Sofia, Bulharsko

Místo konání akce

Albena, Bulharsko

Datum konání akce

30. 6. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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