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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-28 3:02 |
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Conference: Bucharest University Faculty of Physics 2011 Meeting
Section: Atmosphere and Earth Science; Environment Protection
Title:
Lidar monitoring over Bucharest area of the Grímsvötn volcanic eruption
Authors:
E. Carstea, L. Belegante, R.Radulescu, C. Radu, Camelia Talianu
Affiliation:
National Institute of Research and Development for Optoelectronics, Atomistilor 409, 077125 Magurele, Romania
E-mail
emil@inoe.inoe.ro
Keywords:
volcanic eruption, lidar, ash plume
Abstract:
This study reports a volcanic eruption event analyzed with a multi-wavelengths lidar system, over Bucharest area. The Grímsvötn volcano, Iceland’s most frequently erupting volcano, erupted on May 21st, at 17:30 UTC, causing an ash plume to rise to an altitude of over 20 km. The ash plume covered Iceland, reached Greenland and Scandinavia, and then traveled south-est, towards Europe. Grímsvötn volcano’s activity paused on May 25th, although continuing seismic tremor showed that the eruption had not ended completely. Bucharest lidar station, within the European Lidar Network (EARLINET) monitored the atmosphere, continuously between 23rd and 29th of May. On May 27th, an undefined ash layer was observed at 5 km altitude. The layer became more compact and descended to 3 km on the following day. The lidar measurements were stopped, on May 29th, due to cloud cover and precipitation.The results have shown the importance of the investigation of the atmosphere using the laser`s systems as lidar.
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