Case study of the first volcanic ash exercise in romania using remote sensing techniques

Livio Belegante1, Marius Mihai Cazacu2,3, Adrian Timofte2,4, Florica Toanca1, Jeni Vasilescu1, Madalin Ion Rusu1, Nicolae Ajtai5,7,6, Horatiu Ioan Stefanie1,5,7, Ion Vetres8, Alexandru Ozunu5,7, Silviu Gurlui2

1 National Institute of Research and Development for Optoelectronics, Magurele, Romania
2 Alexandru Ioan Cuza University of Iasi, Faculty of Physics, Atmosphere Optics, Spectroscopy and Lasers Laboratory, 11 Carol I Blvd., 700506 Iasi, Romania,
3 Gheorghe Asachi Technical University of Iasi, Department of Physics, 59A Mangeron Blvd., 700050 Iasi, Romania,
4 National Meteorological Administration, Regional Forecast Center Bacau, Bacau, Romania
5 Babe.-Bolyai University of Cluj-Napoca, Faculty of Environmental Science and Engineering, Cluj-Napoca, Romania
6 Consiglio Nazionale delle Ricerche, Istituto di Metodologie per l'Analisi Ambientale, Potenza, Italy
7 Babe.-Bolyai University of Cluj-Napoca, Faculty of Environmental Science and Engineering, Cluj-Napoca, Romania
8 Politehnica University of Timisoara, Timisoara, Romania

Abstract


In this paper we present results from the first European (EUR) and North Atlantic (NAT) volcanic ash exercise (VOLCEX) which includes all the warning phases associated as alerting, reactive and proactive phases. Because volcanic ash represents one of the most serious natural hazards that could affect aviation safety, the measurement campaign was focused on improving the reaction of relevant authorities in case of airspace contamination with volcanic ash and, particularly, to assess the current operational procedures and information flows. Organized in the frame of the International Civil Aviation Organization EUR/NAT Office in Paris, the VOLCEX measurements in Romania were coordinated by the Romanian Atmospheric 3D research Observatory (RADO) and Romanian Air Traffic Services (ROMATSA). The results from lidar measurements from Bucharest, Iasi, Cluj-Napoca-Napoca and Timisoara are presented, emphasizing the dynamics of the aerosol layers and the estimation of particle mass concentrations in the free troposphere.

Keywords


aerosol mass concentration; aviation safety; lidar; volcanic ash

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