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Pregled in uporaba metod določanja sintetičnega histograma padavin
ID Brezočnik, Samo (Author), ID Šraj, Mojca (Mentor) More about this mentor... This link opens in a new window

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PID: 20.500.12556/rul/afc8f680-4b46-4a20-b516-453ab5208605

Abstract
V prvem delu diplomske naloge so predstavljene različne metode določanja sintetičnega histograma padavin, ki se v svetu uporabljajo najpogosteje. Na kratko je povzeta teorija statistične analize padavinskih dogodkov in statistična orodja, ki jih potrebujemo pri določanju sintetičnega histograma padavin. Predstavljene so krivulje intenziteta-trajanje-povratna doba (ITP) in Huffove krivulje, ki jih potrebujemo pri določanju sintetičnih histogramov padavin. V praktičnem delu diplomske naloge so narejeni primeri različnih sintetičnih histogramov padavin za padavinsko postajo Šmartno pri Slovenj Gradcu z uporabo različnih metod za določanje projektnih padavin, nakar smo le-te uporabili za izračun visokovodnih valov s programom HEC-HMS za porečje Velunje. Predstavljen je tudi vpliv izbire časovnega intervala in vpliv postavitve konice padavin pri določanju sintetičnega histograma na rezultate modeliranja površinskega odtoka. Analiza rezultatov je pokazala razlike med posameznimi metodami. Ugotovili smo razlike med konico površinskega odtoka, časom pojava le-te ter volumnom odtoka. Pri metodah, pri katerih lahko določimo časovni interval, izbira le tega ni imela velikega vpliva na celoten površinski odtok. Ugotovili smo tudi, da lahko pri metodah, ki omogočajo izbiro postavitve konice vrha histograma padavin, vplivamo na pojav konice hidrograma odtoka.

Language:Slovenian
Keywords:padavine, sintetični histogram padavin, projektne padavine, hidrološko modeliranje
Work type:Undergraduate thesis
Typology:2.11 - Undergraduate Thesis
Organization:FGG - Faculty of Civil and Geodetic Engineering
Place of publishing:Ljubljana
Publisher:[S. Brezočnik]
Year:2016
PID:20.500.12556/RUL-82907 This link opens in a new window
UDC:556.12(043.2)
COBISS.SI-ID:7475809 This link opens in a new window
Publication date in RUL:03.06.2016
Views:3500
Downloads:933
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Secondary language

Language:English
Title:Review and application of methods for developing synthetic storm hyetographs
Abstract:
The first part of this thesis presents the most used synthetic hyetograph methods worldwide. A short summary of statistical analysis of precipitation events is made and the statistical tools needed for designing synthetic hyetographs are presented. The term project storm as well as the IDF and Huff curves are introduced. In the practical part of this thesis synthetic hyetograph were made using different methods for rainfall station Šmartno pri Slovenj Gradcu. They were then used in HEC-HMS hydrological model for computing flood waves of the Velunja River. The influence of the selected time interval and the position of the peak of the precipitation is also presented. Results show the differences amoung considered methods. Differences in peak discharge, time to peak and runoff volume were demonstrated. Methods having the option of choosing the time interval gave similar results for different time intervals. On the other hand, results show that changing the time of the peak of the hyetograph can significantly influence on the time and the peak of the runoff hydrograph.

Keywords:Rainfall, synthetic hyetograph, design rainfall, hydrological modeling

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