Tadej Ostanek Jurina (Author), Helena Šoško (Author), Dušan Žagar (Author)

Abstract

Razlitij nafte v morskem okolju ni mogoče povsem preprečiti, zato skušamo zmanjševati njihove posledice. V ta namen uporabljamo modele širjenja in razgradnje nafte. Model NAFTA3d deluje na osnovi metode sledenja delcev, rezultati pa so običajno prikazani kot koncentracije nafte ob izbranih časih. Modelu je bil dodan modul, delujoč po metodi trajektorij, s katerim je prikazana verjetnost pojava naftnega madeža na izbrani lokaciji po razlitju. V prvem delu prispevka sta opisani obe metodi in delovanje modela. V drugem delu primerjamo rezultate izračuna koncentracij in metode trajektorij z več simulacijami v Tržaškem zalivu in Severnem Jadranu ter analiziramo uporabnost simulacij s trajektorijami. V tretjem delu prikažemo prednosti in slabosti metode trajektorij. Raziskava kaže, da je novi modul najbolj primeren za odziv na razlitje pri taktičnem načinu modeliranja, njegovi največji prednosti pa sta velika hitrost izračuna ter enostaven in učinkovit prikaz celotnega ogroženega območja na eni sami karti. V zaključku predlagamo način praktične uporabe simulacij po metodi trajektorij. Ključne besede: razlitje nafte; model NAFTA3d; metoda sledenja delcev; metoda trajektorij; metoda koncentracij; Tržaški zaliv; Severni Jadran.

Keywords

razlitje nafte;model NAFTA3d;metoda sledenja delcev;metoda trajektorij;metoda koncentracij;Tržaški zaliv;Severni Jadran;

Data

Language: Slovenian
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FGG - Faculty of Civil and Geodetic Engineering
Publisher: Univerza v Ljubljani, Fakulteta za gradbeništvo in geodezijo
UDC: 504.5:551.35:665.61
COBISS: 7131233 Link will open in a new window
ISSN: 0352-3551
Views: 1502
Downloads: 689
Average score: 0 (0 votes)
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Other data

Secondary language: English
Secondary title: Comparison of trajectory and concentration methods in oil spill modelling at sea
Secondary abstract: Oil spills in the marine environment cannot be entirely prevented. In order to diminish their consequences numerous oil spreading and weathering models have been developed. The NAFTA3d model is based on the particle tracking method, its results are usually presented as oil concentrations at specified times. A new module based on the trajectory method showing the probability of oil slick occurrence at a certain location after a spill was added to the model. The article first describes both methods and functioning of the model. In the second part we present the results of performed simulations and analyse the suitability of the trajectory method by comparing concentrations and trajectories in the Gulf of Trieste and in the Northern Adriatic. In the third section we describe the strengths and weaknesses of the trajectory method. The study reveals that the new module is most suitable for oil spill response modelling, its major advantages being high computational speed as well as simple and efficient presentation of the entire area at risk on a single map. Finally, we propose a procedure for practical use of the trajectory method.
Secondary keywords: oil spill;NAFTA3d model;particle tracking method;trajectory method;concentration method;Gulf of Trieste;Northern Adriatic;
URN: URN:NBN:SI
File type: application/pdf
Type (COBISS): Not categorized
Pages: str. 43-56
Volume: 27
Issue: ǂ[št.] ǂ46
Chronology: 2014
ID: 9150296