Physics
Scientific paper
Nov 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000georl..27.3445r&link_type=abstract
Geophysical Research Letters, Volume 27, Issue 21, p. 3445-3448
Physics
3
Atmospheric Composition And Structure: Aerosols And Particles, Atmospheric Composition And Structure: Instruments And Techniques, Meteorology And Atmospheric Dynamics: Middle Atmosphere Dynamics
Scientific paper
During May 1999, data collected with two of University of L'Aquila lidar systems, Italy show an increase in the stratospheric aerosol content at altitudes between 15 and 18 km. Our initial hypothesis is that these aerosols originated from the Shishaldin (Alaska) volcanic eruption of 19 April 1999. SAGE II observations, taken between Julian day 100 and 180, at latitudes above 40°N, show several sightings that are good candidates for volcanic aerosols. A trajectory analysis shows that a few SAGE II measurements are in space and time compatible with the Shishaldin eruption, and the aerosol enhancements observed by L'Aquila lidars have been also sampled by SAGE II, later and in different locations.
Di Carlo Piero
Iarlori Marco
Masci Fabrizio
Redaelli Gianluca
Rizi Vincenzo
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