气候变化领域集成服务门户(CCPortal): Numerical investigation of atmosphere-fire interactions during high-impact wildland fire events in Greece

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DOI	10.1016/j.atmosres.2020.105253
	Numerical investigation of atmosphere-fire interactions during high-impact wildland fire events in Greece
	Kartsios S.; Karacostas T.; Pytharoulis I.; Dimitrakopoulos A.P.
发表日期	2021
ISSN	0169-8095
卷号	247
英文摘要	This study investigated two high-impact wildland fire events that took place on 23 July 2018 in Attica Region, Central Greece during extreme prevailing weather conditions. The tragic aftermath was 102 life losses in MATI fire event, the largest number of deaths from a fire event in history of the country. The synoptic analysis revealed the presence of a positively tilted trough over the Central Mediterranean and Balkans, propagating eastwards and interacting with the subtropical jet, resulting in a strong westerly flow over Greece. Several surface stations in the wider area recorded wind gusts exceeding 20 m s−1 between 12:00 and 17:30 UTC. The online coupled atmosphere-fire model WRF-SFIRE was utilized in order to simulate these extreme fire events and to investigate the role of the complex terrain to the mean flow and fire behavior. The numerical simulations revealed the presence of induced orographic waves, paths of high winds on the lee-slopes, transient resemblance of a hydraulic jump downstream of Penteli Mt. (MATI), while indicated a downward transport of energy and momentum during the maximum wind speed occurrences. The turbulent and dynamically unstable conditions on the lee-slopes of Gerania Mts. (KINETA) and Penteli Mt. contributed to the flow kinetic energy. Quite different influences of topography in each fire event were found, where the isolated Gerania Mts. contributed to warmer, drier and windier conditions leeward, while Penteli Mt. had a lesser impact on atmospheric variables downstream. © 2020 Elsevier B.V.
英文关键词	Airflow modification; Complex topography; Erratic fire spread; Extreme fire weather; Mati and Kineta wildland fire events; WRF-SFIRE
语种	英语
scopus关键词	Fire hazards; Kinetic energy; Kinetics; Topography; Wind; Atmospheric variables; Central Mediterranean; Complex terrains; Maximum wind speed; Numerical investigations; Subtropical jet; Synoptic analysis; Unstable conditions; Fires; air quality; airflow; atmospheric pollution; forest fire; numerical model; weather forecasting; wind velocity; Attica; Gerania Mountains; Greece
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/141733
作者单位	Department of Meteorology and Climatology, Faculty of Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece; Laboratory of Forest Protection, Faculty of Agriculture, Forestry and Natural Environment, Aristotle University of Thessaloniki, Thessaloniki, Greece
推荐引用方式 GB/T 7714	Kartsios S.,Karacostas T.,Pytharoulis I.,et al. Numerical investigation of atmosphere-fire interactions during high-impact wildland fire events in Greece[J],2021,247.
APA	Kartsios S.,Karacostas T.,Pytharoulis I.,&Dimitrakopoulos A.P..(2021).Numerical investigation of atmosphere-fire interactions during high-impact wildland fire events in Greece.Atmospheric Research,247.
MLA	Kartsios S.,et al."Numerical investigation of atmosphere-fire interactions during high-impact wildland fire events in Greece".Atmospheric Research 247(2021).