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SUMMARY:25 years of infrasound monitoring: achievements and new challenges
DTSTART:20210701T141500Z
DTEND:20210701T151500Z
DTSTAMP:20260424T210100Z
UID:indico-contribution-1375@conferences.ctbto.org
DESCRIPTION:Speakers: Elisabeth Blanc (Commissariat à l’énergie atomiq
 ue et aux énergies alternatives (CEA)\, France)\n\nThe infrasound Interna
 tional Monitoring System (IMS) is a unique tool for atmospheric observatio
 ns due to its high capacity for long-range detection and localisation. Its
  development motivated technological innovation in sensors\, array station
 s and automatic detection algorithms. The rapidly increasing number of cer
 tified stations provided a large diversity of man-made and natural events\
 , well identified thanks to their precise description. Numerical simulatio
 ns\, based on revisited propagation laws\, quantified its high performance
 s and variability. Data analyses then clearly demonstrated that the simula
 tion uncertainties originate from the middle atmosphere variability\, whic
 h controls the infrasound waveguides and is under-represented in models. U
 nexpectedly\, relevant atmospheric parameters were identified in signals f
 rom well-known sources such as volcanoes\, opening new remote sensing poss
 ibilities. The IMS is associated to complementary networks in the Atmosphe
 ric dynamics Research InfraStructure in Europe (ARISE) framework\, providi
 ng an improved description of the middle atmosphere disturbances relevant 
 both for infrasound monitoring and applications such as medium-range weath
 er predictions. Today\, archived data reveals climate change effects on sp
 ecific events such as icebreaking or lightning activity and a remote volca
 no monitoring system is developed to provide alert to civil aviation\, sho
 wing the high IMS potential for weather\, climate and civil security appli
 cations.\n\nhttps://conferences.ctbto.org/event/7/contributions/1375/
LOCATION:Stage 1 (Online)
RELATED-TO:indico-event-7@conferences.ctbto.org
URL:https://conferences.ctbto.org/event/7/contributions/1375/
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