期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2008
卷号：3
出版社：IOP Publishing
摘要：The central Mediterranean area comprises some of the most active volcanoes of
the northern hemisphere. Some of their names recall myths or events in human
history: Somma-Vesuvius, Etna, Stromboli, Vulcano, Ischia and Campi Flegrei.
These volcanoes are still active today, and produce both effusive and explosive
eruptions. In particular, explosive eruptions can produce and disperse large
amount of volcanic ash, which pose a threat to environment, economy and human
health over a large part of the Mediterranean area. We present and discuss data
of ash dispersal from some explosive eruptions of southern Italy volcanoes,
which dispersed centimetre -thick ash blankets hundred of kilometres from the
source, irrespective of the more limited dispersal of the respective coarse
grained fallout and PDC deposits. The collected data also highlight the major
role played by lower atmosphere winds in dispersal of ash from weak plumes and
ash clouds that accompany PDC emplacement.
