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Acoustic Sounding as a new Method for Planetary Surface Research

Krause, Christian and Seidensticker, Klaus and Richter, Lutz (2007) Acoustic Sounding as a new Method for Planetary Surface Research. DFG Kolloquium Schwerpunktprogramm Mars und die terrestrischen Planeten 2007, 2007-02-19 - 2007-02-20, Berlin. (Unpublished)

Full text not available from this repository.

Official URL: http://www.dr-knapmeyer.de/spp1115


: The analysis of mechanical vibrations may provide a new means to study the structure and properties of the surface layers of terrestrial planets and minor bodies like comets. The Comet Acoustic Surface Sounding Experiment (CASSE) on the Rosetta Lander Philae will try to determine elastic parameters and the structure of the surface layer of the target comet. The combination of ground penetrating instru¬ments like PLUTO (PLanetary Underground TOol), developed for the Mars Express lander Beagle 2, as strong acoustic sources with CASSE-like triaxial receivers offers large advantages in increased signal strength, variation of acoustic pathways and effective use of resources. This combination might easier overcome the attenuation problem in dry Regolith than a surface placed instrument and could allow a 3D-tomography of the surface layer. The main goal of our DFG project is the develop-ment of measurement methods that use mechanical vibrations in the auditable frequency range to deter-mine various properties of surface layers. As acoustic sources we use penetration instruments used or fore-sean for space experiments. Fully developed methods should allow to determine e.g. elastic properties or the structure of near-surface layers. In this talk we will present our work on the identifi-cation of different wave types in the recordings of acoustic sounding through granular material. We will also show how near-surface layers can be detected from recorded refractograms. And finally we will demonstrate a method to track penetrating sounders like PLUTO. This method could also allow the loca-tion of seismic events in the neighborhood of a space instrument like CASSE.

Item URL in elib:https://elib.dlr.de/50534/
Document Type:Conference or Workshop Item (Speech)
Title:Acoustic Sounding as a new Method for Planetary Surface Research
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:acoustic sounding, polarisation, mole, surface investigation, planetary, Mars, Comet, CASSE
Event Title:DFG Kolloquium Schwerpunktprogramm Mars und die terrestrischen Planeten 2007
Event Location:Berlin
Event Type:national Conference
Event Dates:2007-02-19 - 2007-02-20
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben Insitu Science (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space > Institute of Space Simulation > User center for space experiments (MUSC)(only for search)
Deposited By: Krause, Christian
Deposited On:08 Aug 2007
Last Modified:15 Jan 2010 01:25

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