IAG-IASPEI 2017

講演情報

Oral

IASPEI Symposia » S19. Planetary seismology

[S19-4] Science goals and modeling of the Insight/SEIS experiment

2017年8月1日(火) 10:30 〜 12:00 Room 402 (Kobe International Conference Center 4F, Room 402)

Chairs: Philippe Lognonné (Institut de Physique du Globe de Paris-Sorbonne Paris Cité) , Bruce Banerdt (Jet Propulsion Laboratory)

11:00 〜 11:15

[S19-4-03] Preparing for InSight: a Blind Test for Detection and Location of Martian Seismicity

Domenico Giardini1, John Clinton2, Philippe Lognonne3, Bruce Banerdt4, Savas Ceylan1, Martin Van Driel1, Amir Khan1, Mark Panning5, Maren Boese1,2, Raphael Garcia6, Melanie Drilleau3, Davide Mimoun6, Naomi Mudoch6, B Kenda3, A Spiga7, Antoine Mocquet8, A Rivoldini9, O Verhoeven8, The SEIS Team10 (1.SEG, ETHZ, Switzerland, 2.SED, ETHZ, Switzerland, 3.IPGP, France, 4.JPL, USA, 5.U. Florida, USA, 6.ISAE, France, 7.LMD, France, 8.U. Nantes, France, 9.ROB, Belgium, 10.http://seis-insight.eu)

The NASA mission InSight will deploy a lander equipped with geophysical and meteorological sensors on the Martian surface at Elysium Planitia, including two 3-component ultra-sensitive seismometers, a very broadband sensor and a short period sensor. InSight mission goals include (1) providing one-dimensional models of Mars' mantle and core to within ±5% uncertainty, as well as three-dimensional velocity models of the crust; and (2) measuring the activity and distribution of seismic events on Mars, including both quakes and impacts. The InSight launch is targeted for May 2018, landing in November 2018, with nominal deployment for 1 Martian year. InSight will return continuous data at 2 sps with the option of retrieving specific data extracts at 20 sps.

In an effort to seek methodological advances and test current single-station location approaches, and also to raise awareness and level of preparation within the scientific community for the data that will arrive from Mars, the InSight team have designed a blind test where we provide a 12 month period of continuous waveform data that simulates, to the best of our knowledge, data that we can expect to retrieve from InSight. Synthetic seismograms from tectonic and impact events are combined with expected seismic noise. We broadly invite all interested scientists to participate by analysing these Martian seismograms and providing a Martian seismicity catalogue. The test is planned to begin on 1 June 2017, with the release of the test dataset and all supplementary material, and will close 6 months later on 1 December 2017. This presentation will summarise the scope of the blind test - including how we set up the synthetic dataset; how the InSight teams will scan the data and identify and characterize seismicity; how we will evaluate different catalogues; and of course we explain how scientists can contribute to the test.