The relative contributions of scattering and viscoelasticity to the attenuation of S waves in Earth's mantle

deSilva, Susini; Cormier, Vernon F.

doi:https://doi.org/10.5194/se-11-161-2020

Articles | Volume 11, issue 1

https://doi.org/10.5194/se-11-161-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/se-11-161-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 11, issue 1

Research article

|

29 Jan 2020

Research article |

| 29 Jan 2020

The relative contributions of scattering and viscoelasticity to the attenuation of S waves in Earth's mantle

Susini deSilva and Vernon F. Cormier

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Final revised paper (published on 29 Jan 2020)
Supplement to the final revised paper
Preprint (discussion started on 27 Sep 2019)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'de Silva & Cormier analysis', Ian Jackson, 31 Oct 2019
- AC1: 'Reply to Ian Jackson', Vernon Cormier, 08 Nov 2019
RC2: 'manuscript review', Anonymous Referee #2, 03 Nov 2019
- AC2: 'Reply to anonymous reviewer', Vernon Cormier, 08 Nov 2019
- SC1: 'Reply to anonymous reviewer', Susini deSilva, 08 Nov 2019

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Vernon Cormier on behalf of the Authors (13 Nov 2019) Author's response Manuscript

ED: Referee Nomination & Report Request started (25 Nov 2019) by Caroline Beghein

RR by Ian Jackson (14 Dec 2019)

ED: Publish as is (17 Dec 2019) by Caroline Beghein

ED: Publish as is (20 Dec 2019) by CharLotte Krawczyk (Executive editor)

AR by Vernon Cormier on behalf of the Authors (22 Dec 2019) Manuscript

Short summary

Seismic waves attenuate with distance due to two effects: (1) removal of energy by internal friction and (2) redistribution of energy into different distances and time windows by scattering from heterogeneous Earth structure. The relative contribution of these two effects is estimated by synthesizing seismograms having varying amounts of internal friction and heterogeneities. The attenuation of observed S waveforms requires contributions from both internal friction and scattering.