Usporedba daljinskih mjerenja LIDAR-om s in situ mjerenjima ultrazvučnim anemometrom kod zračne luke Dubrovnik

master's thesis

• Title (english): Comparison of LIDAR remote sensing and ultrasonic anemometer in situ measurements at the Dubrovnik airport
• Author: Juraj Tašler
• Mentor: Željko Večenaj (mentor)
• Committee member: Željko Večenaj (predsjednik povjerenstva)
• Committee member: Branko Grisogono (član povjerenstva)
• Committee member: Iva Dasović (član povjerenstva)
• Committee member: Maja Telišman Prtenjak (član povjerenstva)
• Committee member: Tena Belinić Topić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Geophysics); Zagreb
• Defense date and country: 2024-01-30, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Geophysics; Meteorology and Climatology

Abstract

Bura je jedan od najsnažnijih i najčešćih vjetrova na području istočne obale Jadrana. S obzirom na visinu troposfere do koje prodire, razlikuju se plitka i duboka bura, dok se po sinoptičkom tipu dijeli na ciklonalni, anticiklonalni i frontalni tip bure. U ovom radu se istraživanje temelji na mjerenjima LIDAR-a i ultrazvučnog anemometra koji su se nalazili u okolici Dubrovačkog aerodroma. Zbog svog položaja, pista zračne luke Dubrovnik je izuzetno otvorena na buru, pa to stvara velike probleme u zračnom prometu. Analiza mjerenja se vršila na dvije epizode bure iz 2018. godine. Za početak je pomoću prizemne sinoptičke karte i vertikalnog profila vjetra određen tip bure za obje epizode. Zatim je napravljena usporedba mjerenja radijalne komponente brzine vjetra između instrumenata. S obzirom da su mjerenja podijeljena u nizove koji traju 1.5 ili 3.6 minuta, tražila se veza između srednje vrijednosti niza mjerenja LIDAR-a i srednje vrijednosti niza mjerenja anemometra. Za kraj se, u svrhu procjene turbulentne kinetičke energije pomoću mjerenja LIDAR-a, tražila veza između varijance niza mjerenja LIDAR-a i varijance niza mjerenja anemometra.

Abstract (english)

Bora is one of the strongest and most frequent winds of the eastern coast of the Adriatic Sea. Considering the height of the troposphere it reaches, it can be categorized as shallow or deep bora. This study is based on measurements from LIDAR and ultrasonic anemometer located near Dubrovnik Airport. Due to its location, Dubrovnik Airport's runway is highly exposed to the bora, causing significant issues in air traffic. The analysis of measurements conducted during two bora episodes in 2018. Initially, using surface synoptic chats and vertical wind profiles, the type of bora for both episodes was determined. Next, a comparison was made between the mean measurements of the radial wind component from the two instruments. Since the measurements were divided into datasets lasting 1.5 or 3.6 minutes, the relationship between the mean values of the LIDAR dataset and the anemometer dataset was sought. Finally, in order to estimate the turbulent kinetic energy using LIDAR and measurements, a connection was sought between the variance of the LIDAR dataset and the variance of the anemometer dataset.

• Keywords: bura; radijalna komponenta brzine vjetra; turbulentna kinetička energija
• Keywords (english): bora; radial wind component; turbulent kinetic energy
• Language: croatian
• URN:NBN: urn:nbn:hr:217:934549
• Study programme: Title: graduate academic research programme: Master of Physics – geophysics, modules: Seismology and solid Earth physics, Meteorology and physical oceanography; specializations in: Seismology and solid Earth physics, Meteorology and physical oceanography; Course: Meteorology and physical oceanography; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni magistar fizike – geofizike (sveučilišni magistar fizike – geofizike)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Embargoed access; Embargo expiration date: 2024-07-30
• Created on: 2024-02-02 09:47:27