Evidence map›Paper›PMID 34815402›Full record

ArticleNature communications2021

The shallow structure of Mars at the InSight landing site from inversion of ambient vibrations.

M Hobiger, M Hallo, C Schmelzbach, S C Stähler, D Fäh, D Giardini, M Golombek, J Clinton, N Dahmen, G Zenhäusern and 6 more

Abstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

  1. Article
  2. Article
  3. Extensive Secondary Cratering From the InSight Sol 1034a Impact Event.Journal of geophysical research. Planets · 2024
    Article
  4. Article
  5. Article
  6. The InSight HPSpace science reviews · 2022
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

16 authors.

M Hobiger *Swiss Seismological Service (SED), ETH Zurich, Zurich, Switzerland.
M Hallo *Swiss Seismological Service (SED), ETH Zurich, Zurich, Switzerland.ORCID http://orcid.org/0000-0001-5865-7767
C Schmelzbach *Institute of Geophysics, ETH Zurich, Zurich, Switzerland. cedric.schmelzbach@erdw.ethz.ch.ORCID http://orcid.org/0000-0003-1380-8714
S C StählerInstitute of Geophysics, ETH Zurich, Zurich, Switzerland.ORCID http://orcid.org/0000-0002-0783-2489
D FähSwiss Seismological Service (SED), ETH Zurich, Zurich, Switzerland.
D GiardiniInstitute of Geophysics, ETH Zurich, Zurich, Switzerland.ORCID http://orcid.org/0000-0002-5573-7638
M GolombekJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, 91109, USA.
J ClintonSwiss Seismological Service (SED), ETH Zurich, Zurich, Switzerland.ORCID http://orcid.org/0000-0001-8626-2703
N DahmenInstitute of Geophysics, ETH Zurich, Zurich, Switzerland.ORCID http://orcid.org/0000-0002-9114-6747
G ZenhäusernInstitute of Geophysics, ETH Zurich, Zurich, Switzerland.ORCID http://orcid.org/0000-0001-9401-4910
B Knapmeyer-EndrunBensberg Observatory, University of Cologne, Bergisch Gladbach, Germany.
S CarrascoBensberg Observatory, University of Cologne, Bergisch Gladbach, Germany.ORCID http://orcid.org/0000-0002-6207-8757
C CharalambousDepartment of Electrical and Electronic Engineering, Imperial College London, London, UK.ORCID http://orcid.org/0000-0002-9139-3895
K HurstJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, 91109, USA.ORCID http://orcid.org/0000-0002-3822-4689
S KedarJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, 91109, USA.ORCID http://orcid.org/0000-0001-6315-5446
W B BanerdtJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, 91109, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Orbital and surface observations can shed light on the internal structure of Mars. NASA's InSight mission allows mapping the shallow subsurface of Elysium Planitia using seismic data. In this work, we apply a classical seismological technique of inverting Rayleigh wave ellipticity curves extracted from ambient seismic vibrations to resolve, for the first time on Mars, the shallow subsurface to around 200 m depth. While our seismic velocity model is largely consistent with the expected layered subsurface consisting of a thin regolith layer above stacks of lava flows, we find a seismic low-velocity zone at about 30 to 75 m depth that we interpret as a sedimentary layer sandwiched somewhere within the underlying Hesperian and Amazonian aged basalt layers. A prominent amplitude peak observed in the seismic data at 2.4 Hz is interpreted as an Airy phase related to surface wave energy trapped in this local low-velocity channel.

Identifiers

PMID34815402
PMCPMC8611082

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.