Model otjecanja podsliva vodotoka Curak i Jasle

undergraduate thesis

• Title (english): Runoff model of the Curak and Jasle sub-basins
• Author: Tea Šepić
• Mentor: Damjan Bujak (mentor)
• Committee member: Damir Bekić (predsjednik povjerenstva)
• Committee member: Damjan Bujak (član povjerenstva)
• Committee member: Goran Lončar (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Water Research); Zagreb
• Defense date and country: 2023-09-26, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering; Hydrotechnology

Abstract

U prirodi voda je u stalnom kruženju između Zemljine površine i atmosfere. Otjecanje kao jedan od procesa u hidrološkom ciklusu znatno utječe na okoliš, ljudsko društvo i njegove djelatnosti. Tijekom godina klimatski su se uvjeti uvelike promijenili te dovode do sve učestalijih ekstremnih pojava, kao što su suše i poplave. U svrhu procjene i upravljanja opasnostima od poplava uspostavljena je metodologija za određivanje opasnosti od poplava vrlo velike vjerojatnosti za podsliv Curak i Jasle. U izradi modela otjecanja za navedeni sliv korištena je MFD metoda. Model kao rezultat, nakon niza izvršenih iteracija, daje akumuliranu dubinu otjecanja na pojedinoj lokaciji. Koristeći Manningovu jednadžbu i rezultate modela te karakteristike vodotoka dobiven je protok koji je uspoređen s mjernim protokom 1% trajanja na mjernoj postaji Zeleni Vir. Usporedbom mjerenog protoka i izračunatog protoka pomoću numeričkog modela i jednadžbe dobivena je razlika od 3,1% stoga se može zaključiti da je model precizno opisuje zadano otjecanje koje odgovara protoku u kalibracijskom procesu. Korištenjem ovoga modela moguće je dobiti raspodjelu dubina vode po slivu Curak i Jasle čime se identificiraju lokacije pod opasnosti od sprječava potencijalna materijalna šteta područja od poplavnih događaja.

Abstract (english)

In the nature, water is in constant circulation between the Earth's surface and the atmosphere. Runoff, as one of the processes in the hydrological cycle significantly impacts the environment, human society, and its activities. Over the years, climate conditions have changed, leading to more frequent extreme events such as droughts and floods. In order to assess and manage flood hazards, a methodology has been established to determine the high probability flood hazards for the Curak and Jasle sub-basins. In developing the runoff model for the mentioned watershed, the MFD method was used. As a result of multiple iterations, the model provides accumulated runoff depth at specific locations. Using Manning's equation and the model's results, the flow was compared with measured discharge with the annual exceedance probability of 1% at the Zeleni Vir gauging station. By comparing the measured discharge and the calculated discharge, a difference of 3.1% was determined. Therefore, it can be concluded that the model accurately describes the runoff for the specific discharge use in the calibration procedure. By using this model, it is possible to obtain a spatial distribution of water depths across the Curak and Jasle basin, thereby preventing and potentially mitigating potential damage to the surrounding area.

• Keywords: model otjecanja; otjecanje; opasnost od poplava; otvoreni vodotoci; Manningova jednadžba
• Keywords (english): runoff model; runoff; flooding hazard; open channel flow; Mannings equation
• Language: croatian
• URN:NBN: urn:nbn:hr:237:906051
• Study programme: Title: Civil Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka građevinarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka građevinarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-10-24 09:42:16