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Please note that this session was withdrawn and is no longer available in the respective programme.

PS5.3

Extraterrestrial seismology – Advances in instrumentation and methodology
Convener: Stefanie Hempel  | Co-Conveners: Brigitte Knapmeyer-Endrun , Martin Knapmeyer , Savas Ceylan , Simon C. Stähler 
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This session will be a platform to share and discuss advances in seismic instrumentation and seismological methodology aimed at terrestrial planets, icy moons, and small bodies as well as seismological investigations of icy, oceanic or desert environments on Earth.

In preparation for new space missions planning to deploy seismometers on Mars, asteroids, comets or returning to the Moon, we want to establish a session to present advances in building robust and low-power seismic instrumentation adequate for space, including new deployment and sensor concepts, e.g. miniaturization, rotational sensors, or sensors for atmospheric recordings of seismic waves. Addressed issues may include data quality and quantity achievable by these instruments given their limitations in frequency range, sensitivity, digital resolution, finite lifetime due to power availability, and limited capacity for data storage and transfer.

Furthermore, we invite discussions of seismological methods that can be adapted to the specific case of limited data availability and harsh conditions on extraterrestrial bodies: dealing with single-station setups, scarce networks, strong background noise, timing errors, unknown sources, difficulties arising from robotic deployment, lacking information on the exact deployment conditions, and ineffective coupling between instrument and ground. In this respect, lessons learned from seismological experiments in challenging terrestrial environments are of special interest. Examples are experiments on (floating) ice, in the oceans e.g. using ocean-bottom seismometers or floating hydrophones, or in deserts. Presentations are invited on topics including knowledge and insights obtained from re-processing of Apollo lunar seismic data with novel methodologies, getting ready for seismic data return from the InSight mission to Mars scheduled to land in November 2018, seismic investigations of Earth analogues comparable to expected extraterrestrial environments , and studies undertaken in preparation for seismic missions to asteroids, comets, icy moons and other bodies.