The infrasound field, the science of low-frequency acoustic waves, has developed into a broad interdisciplinary field encompassing academic disciplines of geophysics and recent technical and scientific developments. The infrasound network of the International Monitoring Network (IMS) for nuclear test ban verification and regional cluster arrays deployed around the globe have demonstrated their capacity for detecting and locating most of the disturbances in the atmosphere. Infrasound is capable of traveling up to thermospheric altitudes and over enormous ranges, where its propagation is controlled by the wind and temperature structure. Recent studies point out new insights on quantitative relationships between observables and atmospheric characteristics, and therefore opening a new field for atmospheric remote sensing.

New studies using lidar, radar, microwave spectrometer and mesospheric airglow observations complemented by satellite measurements help to better determine the interaction between atmospheric layers from the ground to the mesosphere and the influence of atmospheric waves on the mean flow. It is expected that further developing multi-instruments platforms would improve gravity wave parameterizations and enlarge the science community interested by operational infrasound monitoring. The ARISE project, funded by the European Commission, coordinates such studies. It proposes to design a novel infrastructure that integrates different atmospheric observation networks to infer a new 3D image of the atmosphere from the ground to mesosphere. In a higher frequency range, this monitoring system also offers a unique opportunity to provide in near-real time continuous relevant information about natural hazards with high societal benefits, like large volcanic eruptions, surface earthquakes or meteorites.

We invite contributions on current studies on sensors, characterization of different sources and large scale atmospheric phenomena, characterization of phenomena which affect acoustic propagation, utilization of acoustic waves to probe the atmosphere, contribution of gravity and planetary waves to the atmospheric dynamics and the coupling of atmospheric layers. In the session, we will also consider the role that infrasound and acoustic-gravity waves play in the coupled Earth’s crust – ocean – atmosphere system and, in particular, in ionospheric manifestations of physical processes in the ocean and in the solid Earth.

Convener: Alexis Le Pichon | Co-conveners: Elisabeth Blanc, Läslo G. Evers, Oleg Godin, Nikolay Zabotin
| Wed, 10 Apr, 16:15–18:00
Room 0.49
| Attendance Wed, 10 Apr, 14:00–15:45
Hall X5

Attendance time: Wednesday, 10 April 2019, 14:00–15:45 | Hall X5

Chairperson: Alexis Le Pichon, Laslo Evers
X5.187 |
Elisabeth Blanc and the ARISE team
X5.188 |
Csenge Czanik, Márta Kiszely, Péter Mónus, Bálint Süle, and István Bondár
X5.190 |
Tereza Sindelarova, Michal Kozubek, Jaroslav Chum, and Jiri Base
X5.191 |
Daniela Ghica, Mihaela Popa, and Constantin Ionescu
X5.192 |
Nikolay Zabotin, Oleg Godin, Peter Bromirski, Geonhwa Jee, Won Sang Lee, Sukyoung Yun, and Liudmila Zabotina
X5.193 |
| presentation
Philippe Baron, Satoshi Ochiai, Hideo Sagawa, Akinori Saito, Masato Shiotani, and Makoto Suzuki
X5.194 |
Willem van Caspel, Patrick Espy, and John McCormack
X5.195 |
Christoph Pilger, Peter Gaebler, Lars Ceranna, Alexis Le Pichon, Julien Vergoz, Anna Perttu, Dorianne Tailpied, and Benoit Taisne
X5.197 |
Raluca Dinescu, Daniela Ghica, Johannes Schweitzer, Sven Peter Näsholm, Mihaela Popa, and Constantin Ionescu
X5.199 |
Thurian Le Du, Alain Hauchecorne, Philippe Keckhut, and Pierre Simoneau
X5.200 |
Alexandr Smirnov, Marine De Carlo, and Alexis Le Pichon
X5.201 |
Marine De Carlo, Alexis Le Pichon, Fabrice Ardhuin, S. Peter Naesholm, and Pieter Smets
X5.202 |
Sergei Pakhomov, Tatiana Kuzmina, and Gennadij Shahetov
X5.203 |
Alejandro Díaz-Moreno, Beth-Helen Munkli, Anthony Lamur, and Silvio De Angelis
X5.205 |
Alexis Le Pichon, Marine De Carlo, Julien Vergoz, Peter Näsholm, Patrick Espy, Robert Hibbins, and Johann Kero