Re-evaluation of Apollo 17 Lunar Seismic Profiling Experiment data

dc.contributor.authorHeffels, Alexandra
dc.contributor.authorKnapmeyer, Martin
dc.contributor.authorOberst, Jürgen
dc.contributor.authorHaase, Isabel
dc.date.accessioned2019-09-19T08:31:02Z
dc.date.available2019-09-19T08:31:02Z
dc.date.issued2016-12-10
dc.description.abstractWe re-analyzed Apollo 17 Lunar Seismic Profiling Experiment (LSPE) data to improve our knowledge of the subsurface structure of this landing site. We use new geometrically accurate 3-D positions of the seismic equipment deployed by the astronauts, which were previously derived using high-resolution images by Lunar Reconnaissance Orbiter (LRO) in combination with Apollo astronaut photography. These include coordinates of six Explosive Packages (EPs) and four geophone stations. Re-identified P-wave arrival times are used to calculate two- and three-layer seismic velocity models. A strong increase of seismic velocity with depth can be confirmed, in particular, we suggest a more drastic increase than previously thought. For the three-layer model the P-wave velocities were calculated to 285, 580, and 1825 m/s for the uppermost, second, and third layer, respectively, with the boundaries between the layers being at 96 and 773 m depth. When compared with results obtained with previously published coordinates, we find (1) a slightly higher velocity (+4%) for the uppermost layer, and (2) lower P-wave velocities for the second and third layers, representing a decrease of 34% and 12% for second and third layer, respectively. Using P-wave arrival time readings of previous studies, we confirm that velocities increase when changing over from old to new coordinates. In the three-layer case, this means using new coordinates alone leads to thinned layers, velocities rise slightly for the uppermost layer and decrease significantly for the layers below.en
dc.identifier.eissn0032-0633
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/10053
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-9044
dc.language.isoen
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.ddc620 Ingenieurwissenschaften und zugeordnete Tätigkeitende
dc.subject.otherApollo 17en
dc.subject.otherseismic dataen
dc.subject.othervelocity-depth profileen
dc.subject.otherLunar Reconnaissance Orbiteren
dc.subject.other3-D positionsen
dc.subject.otherlunar moduleen
dc.titleRe-evaluation of Apollo 17 Lunar Seismic Profiling Experiment dataen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.doi10.1016/j.pss.2016.11.007
dcterms.bibliographicCitation.journaltitlePlanetary and space scienceen
dcterms.bibliographicCitation.originalpublishernameElsevieren
dcterms.bibliographicCitation.originalpublisherplaceKidlingtonen
dcterms.bibliographicCitation.pageend54
dcterms.bibliographicCitation.pagestart43
dcterms.bibliographicCitation.volume135
tub.accessrights.dnbfree
tub.affiliationFak. 6 Planen Bauen Umwelt>Inst. Geodäsie und Geoinformationstechnik>FG Planetengeodäsiede
tub.affiliation.facultyFak. 6 Planen Bauen Umweltde
tub.affiliation.groupFG Planetengeodäsiede
tub.affiliation.instituteInst. Geodäsie und Geoinformationstechnikde
tub.publisher.universityorinstitutionTechnische Universität Berlinde
Files
Original bundle
Now showing 1 - 1 of 1
Loading…
Thumbnail Image
Name:
1-s2.0-S0032063316301623-main.pdf
Size:
3.75 MB
Format:
Adobe Portable Document Format
Description:
Collections