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Continuous monitoring of ultrafine aerosol emissions at Mt. Etna
Author(s) -
Ammann Markus,
Scherrer Leo,
Mueller Wolfgang,
Burtscher Heinz,
Siegmann HansChristoph
Publication year - 1992
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/92gl01175
Subject(s) - volcano , plume , aerosol , photoelectric effect , atmospheric sciences , environmental science , magma , nanometre , panache , ultrafine particle , geology , meteorology , geochemistry , materials science , nanotechnology , physics , optoelectronics , composite material
For the first time, ultrafine volcanic aerosols are monitored continuously by Photoelectric Charging of Particles (PCP) at Mt.Etna, Sicily. The measured quantity, the photoelectric activity of the aerosols, ε, is a measure of the relative copper content in the nanometer sized particles and may be related to the release of chlorides from magma. A monitoring system was set up in the plume of Mt.Etna in 1991. The data show a connection to the volcanic activity. Events of magmatic activity on a short time scale of 45 sec as well as the general evolution over several months are apparent.