Analiza pouzdanosti protonih krivulja i mogućnosti njihovog poboljšanja na malim i srednjim slivovima u Hrvatskoj

master's thesis

• Title (english): Evaluation of rating curve reliability and possibility of their improement in small and medium sized catchments in Croatia
• Author: Matija Martinčić
• Mentor: Damir Bekić (mentor)
• Committee member: Damir Bekić (predsjednik povjerenstva)
• Committee member: Ivan Halkijević (član povjerenstva)
• Committee member: Dražen Vouk (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Water Research); Zagreb
• Defense date and country: 2022-09-29, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering; Hydrotechnology

Abstract

Analiza protočnih krivulja je izrađena za 15 hidroloških postaja na rijekama jadranskogi crnomorskog sliva. Hidrološke postaje su grupirane u pet razreda prema pripadajućoj površini sliva i u svakoj grupi su bile tri hidrološke postaje. Nakon identifikacije broja vodomjerenja po razredima vodostaja, provedena je usporedba protoka iz vodomjerenjima s protocima iz postojećih protočnih krivulja. Pouzdanost postojećih protočnih krivulja je ocijenjena standardnim statističkim indikatorima postotak srednje greške (PME), postotak apsolutne srednje greške (PMAE) te srednje kvadratno odstupanje (RMSE). Također je prikazana ocjena mogućnosti jednostavnog poboljšanja protočnih krivulja. Definirane su nove protočne krivulje korištenjem jednostavnog hidrauličkog proračuna primjenom Manningove jednadžbe. Ocjena nove protočne krivulje dana je temeljem usporedbe protoka iz vodomjerenja s protocima iz nove protočne krivulje. Rezultati su prikazani prema različitim grupama (veličina pripadajućeg sliva, broj vodomjerenja po razredima vodostaja).

Abstract (english)

The analysis of rating curves was made for 15 hydrological stations on the rivers of the Adriatic and Black Sea basins. The hydrological stations were grouped into five classes according to the associated catchment area, and there were three hydrological stations in each group. After identifying the number of discharge measurements in each water level class, a comparison of the discharges between measurements and the existing rating curves was carried out. The reliability of the existing rating curves was assessed by standard statistical indicators of the percentage mean error (PME), percentage absolute mean error (PMAE) and root mean square error (RMSE). An evaluation of the possibility of simple improvement of the rating curves is also presented. New rating curves were defined using a simple hydraulic calculation using the Manning equation. The evaluation of the new rating curves is based on the comparison of discharges between measurements and the new rating curve. The results are given according to different groups (size of the associated watershed, number of discharge measurements by water level class).

• Keywords: protočna krivulja; vodomjerenja; ocjena protoka; hidrološka postaja
• Keywords (english): rating curve; discharge measurement; dicharge evaluation; hydrological station
• Language: croatian
• URN:NBN: urn:nbn:hr:237:481947
• Study programme: Title: Civil Engineering; specializations in: Construction Management, Transportation Engineering, Geotechnical Engineering, Hydraulic Engineering, Structural Engineering, Construction Materials, Theory and Modeling of Structures; Course: Construction Management; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka građevinarstva (magistar/magistra inženjer/inženjerka građevinarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-02-01 08:56:56