Model otjecanja podsliva vodotoka Lonja

undergraduate thesis

• Title (english): Runoff model of a Lonja watercourse sub-basin
• Author: Klara Blažek
• 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 ovome radu uspostavljamo model otjecanja podsliva vodotoka Lonja u svrhu određivanja poplavne opasnosti vrlo velike vjerojatnosti slivnog područja. Kod otvorenih vodotoka vrlo bitno je poznavati rasprostranjenost i dinamiku tečenja vode u prostoru i vremenu kako bi predvidjeli i pravovremeno spriječili štete uzrokovane poplavama. Vrlo važan parametar u izradi modela otjecanja je samo otjecanje. Otjecanje definiramo kao protok vode, kiše, snijega ili drugih tekućina na tlu te čini ključan dio hidrološkog ciklusa. Model je izrađen u sučelju programa QGIS koji je geografski sustav informacija te time omogućuje pregled, uređivanje, ispis i analizu geoprostornih podataka. Korištenjem javno dostupnih baza podataka kao što je digitalni model visina (EU-DEM v1.1) dobivamo topografiju područja na kojem izrađujemo model otjecanja. Model kalibriramo pomoću protoka trajanja 1% mjerenog na postaji Lonjica most. Kao rezultat modela dobivamo prostornu raspodjelu dubina vode po slivnom području pri pojavi protoka 1% trajanja na kalibriranoj postaji.

Abstract (english)

In this thesis, we established a runoff model of the Lonja watercourse sub-catchment for the purpose of determining the highly probable flood hazard in the catchment area. In the case of open watercourses, it is very important to know the distribution and dynamics of water flow in space and time in order to predict and timely prevent flood damage. A very important parameter in creating a runoff model is the runoff itself. We define runoff as the flow of water, rain, snow or other liquids on the ground, and it is a key part of the hydrological cycle. The runoff model is established in QGIS, which is a geographic information system that enables viewing, editing, printing and analysis of geospatial data. By using publicly available databases such as the digital elevation model (EU-DEM v1.1), we obtain the topography of the area on which we create the runoff model. We calibrated the model using the discharge with the annual exceedance probability of 1% at Lonjica most, a downstream hydrological station. Through the numerical model we obtain a spatial distribution of water depths inside the catchment area at the occurrence of a flow of 1% duration.

• 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:237:781934
• 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: 2023-10-23 09:53:41