Sekundarni jezik: |
Angleški jezik |
Sekundarni naslov: |
Analysis of hydrograph timing parameters for selected watersheds |
Sekundarni povzetek: |
The purpose of the graduation thesis is to present the theoretical basics of runoff hydrograph, timing
parametres and their estimations and also the affecting watershed characteristics. The practical part is
composed of defining timing parametres from gauged hydrographs of selected basins and comparing
to the results of empirical equations.
In the first part the graduation thesis presents the runoff basics, as part of the hydrologic circle, are
presented. There is also the description of the hydrograph, its components and characteristics. The use
and characteristics of the unit hydrograph are given. Furthermore, there is a chapter about the
geographical and meteorological characterisctics of the watershed and their affect on the shape,
duration and maximum runoff volume of the hydrograph. Timing parametres and their definictions are
described. In case of parametres with multiple definictions, all of them are descibed and their
differences are submited. The following part contains the methods and equations for calculating the
values of these parametres. The methods are divided into three approaches: the analysis of gauged
hydrographs, the velocity method and the empirical equations. Numerous equations are listed with
details. The process of defining timing parametres from gauged hydrographs and rainfall is presented.
For the selected basins multiple hydrographs were defined from measured data. Timing parametres
were then gathered from the hydrographs. The watershed characteristics for empirical equation
calculation were obtained by geographic information systems. The results were examined and
compared. |
Sekundarne ključne besede: |
hydrograph;surface runoff;the influence of timing parameters;time of concentration;lang time;watershed characteristics; |
Vrsta datoteke: |
application/pdf |
Vrsta dela (COBISS): |
Diplomsko delo |
Komentar na gradivo: |
Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo |
Strani: |
XII, 86 str., 3 pril. |
Vrsta dela (ePrints): |
thesis |
Naslov (ePrints): |
Analysis of hydrograph timing parameters for selected watersheds |
Ključne besede (ePrints): |
hidrogram;površinski odtok;vpliv značilnosti porečja;časovni
parametri;čas koncentracije;čas zakasnitve |
Ključne besede (ePrints, sekundarni jezik): |
hydrograph;surface runoff;the influence of timing parameters;time of
concentration;lag time;watershed characteristics |
Povzetek (ePrints): |
Namen diplomske naloge je predstaviti teoretične osnove hidrograma, časovnih parametrov
hidrograma in njihovo določanje ter značilnosti porečja, ki nanj vplivajo. V praktičnem delu naloge pa
predstaviti določevanje časovnih parametrov iz merjenih hidrogramov na izbranih porečjih in jih
primerjati z rezultati empiričnih enačb.
V diplomskem delu so najprej so predstavljene osnove odtoka, kot dela hidrološkega kroga.
Predstavljen je hidrogram, njegove komponente in značilnosti. Povzete so tudi značilnosti in uporaba
hidrograma enote. Sledi poglavje o geografskih in meteoroloških značilnostih porečja in njihovem
vplivu na obliko, velikost konice in trajanje hidrograma. Predstavljeni so časovni parametri
hidrograma in njihove definicije. Pri parametrih, kjer so v uporabi različne definicije, so le-te napisane
tako, da so razvidne razlike med njimi. V naslednjem delu so predstavljene metode in enačbe za
določanje časovnih parametrov. Določanje parametrov lahko razdelimo na tri glavne pristope: z
analizo obstoječih hidrogramov, s hitrostnimi metodami in z empiričnimi enačbami. Nanizane so
številne enačbe za določanje časovnih parametrov. V praktičnem delu je predstavljeno določanje
časovnih parametrov iz merjenih pretokov in padavin. Za izbrana porečja smo iz daljšega obdobja
meritev izbrali več hidrogramov in odčitali časovne parametre. Z uporabo geografskih informacijskih
sistemov smo določili potrebne lastnosti porečij za izračun empiričnih enačb časovnih parametrov.
Rezultate, pridobljene po obeh metodah, smo analizirali in primerjali. |
Povzetek (ePrints, sekundarni jezik): |
The purpose of the graduation thesis is to present the theoretical basics of runoff hydrograph, timing
parametres and their estimations and also the affecting watershed characteristics. The practical part is
composed of defining timing parametres from gauged hydrographs of selected basins and comparing
to the results of empirical equations.
In the first part the graduation thesis presents the runoff basics, as part of the hydrologic circle, are
presented. There is also the description of the hydrograph, its components and characteristics. The use
and characteristics of the unit hydrograph are given. Furthermore, there is a chapter about the
geographical and meteorological characterisctics of the watershed and their affect on the shape,
duration and maximum runoff volume of the hydrograph. Timing parametres and their definictions are
described. In case of parametres with multiple definictions, all of them are descibed and their
differences are submited. The following part contains the methods and equations for calculating the
values of these parametres. The methods are divided into three approaches: the analysis of gauged
hydrographs, the velocity method and the empirical equations. Numerous equations are listed with
details. The process of defining timing parametres from gauged hydrographs and rainfall is presented.
For the selected basins multiple hydrographs were defined from measured data. Timing parametres
were then gathered from the hydrographs. The watershed characteristics for empirical equation
calculation were obtained by geographic information systems. The results were examined and
compared. |
Ključne besede (ePrints, sekundarni jezik): |
hydrograph;surface runoff;the influence of timing parameters;time of
concentration;lag time;watershed characteristics |
ID: |
8312479 |