Primerjava modelov širjenja nafte na morju po metodah trajektorij in koncentracij

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

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.

• Language: Slovenian
• Keywords: razlitje nafte, model NAFTA3d, metoda sledenja delcev, metoda trajektorij, metoda koncentracij, Tržaški zaliv, Severni Jadran
• Work type: Not categorized
• Typology: 1.01 - Original Scientific Article
• Organization: FGG - Faculty of Civil and Geodetic Engineering
• Publisher: Univerza v Ljubljani, Fakulteta za gradbeništvo in geodezijo
• Year: 2014
• Number of pages: Str. 43-56
• Numbering: Letn. 27, št. 46
• PID: 20.500.12556/RUL-83433
• UDC: 504.5:551.35:665.61
• ISSN on article: 1581-0267
• COBISS.SI-ID: 7131233
• Publication date in RUL: 14.06.2016

OSTANEK JURINA, Tadej, ŠOŠKO, Helena and ŽAGAR, Dušan, 2014, Primerjava modelov širjenja nafte na morju po metodah trajektorij in koncentracij. Acta hydrotechnica [online]. 2014. Vol. 27, no. 46, p. 43–56. [Accessed 22 June 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=83433

Record is a part of a journal

• Title: Acta hydrotechnica
• Shortened title: Acta hydrotech.
• Publisher: Univerza v Ljubljani, Fakulteta za gradbeništvo in geodezijo
• ISSN: 1581-0267
• COBISS.SI-ID: 1838689

Secondary language

• Language: English
• Title: Comparison of trajectory and concentration methods in oil spillmodelling at sea

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.

• Keywords: oil spill, NAFTA3d model, particle tracking method, trajectory method, concentration method, Gulf of Trieste, Northern Adriatic