Computer Science – Sound
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009georl..3623808e&link_type=abstract
Geophysical Research Letters, Volume 36, Issue 23, CiteID L23808
Computer Science
Sound
5
Seismology: Seismic Monitoring And Test-Ban Treaty Verification, Atmospheric Processes: Remote Sensing, Atmospheric Processes: Middle Atmosphere Dynamics (0341, 0342)
Scientific paper
The study of infrasound is experiencing a renaissance since it was chosen as a verification technique for the Comprehensive Nuclear-Test-Ban Treaty. The success of the verification technique strongly depends on knowledge of upper atmospheric processes. The ability of infrasound to probe the upper atmosphere starts to be exploited, taking the field beyond its monitoring application. Processes in the stratosphere couple to the troposphere and influence our daily weather and climate. Infrasound delivers actual observations on the state of the stratosphere with a high spatial and temporal resolution. Here we show the infrasonic signature, passively obtained, of a drastic change in the stratosphere due to the major sudden stratospheric warming (SSW) of January 2009. With this study, we infer the enormous capacity of infrasound in acoustic remote sensing of stratospheric processes on a global scale with surface based instruments.
Evers Läslo G.
Siegmund P.
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