• NERC Data Catalogue Service
  •  
  •  
  •  

Synthetic Rayleigh wave phase delays and Vsv upper-mantle structure in the Pacific, a synthetic tomography

This repository contains data and inversion results for the SOLA finite-frequency tomography of the Pacific upper-mantle in a synthetic setup. It is related to the paper by Latallerie et al., 2025 in Seismica and more information can be found in this publication. The code repository for the finite-frequency SOLA tomography can be found at Gitlab: https://gitlab.com/FranckLatallerie/sola_ffsw.git The dataset consists of Rayleigh wave phase delays (dispersion) measured on vertical component seismograms for earthquake-receiver pairs across the Pacific hemisphere. Synthetic phase delays are measured on synthetic reference seismogram computed with normal-mode summation using the MINEOS software (e.g. Masters et al., 2011) in the radial reference model stw105 (Kustowski et al., 2008). “Observed” seismograms are synthetic waveforms computed in the 3D model S362ANI (Kustowski et al., 2008), using the SEM solver SPECFEM3DGlobe. These synthetic waveforms have been provided by the GlobalShakeMovie project (Tromp et al., 2010) and were downloaded from the Earthscope (formerly IRIS) Data Management Center (IRIS DMC, 2012) using the network code SY and channel code MXZ. All network and stations used are listed in the Acknowledgements of the accompanying paper. The model represents the vertically polarised shear wave velocity (Vsv) 3D structure of the upper mantle in the Pacific. It is accompanied with full 3D resolution and uncertainty. The 3D tomographic grid is made of voxels of size 2 by 2 degrees laterally, and 25 km vertically, spanning the whole sphere, starting at the surface down to ~400km depth. In the files, the longitude is the fastest varying coordinate, then latitude, followed by radius. The midpoints of the voxels range between 1 and 359 for longitude and between 89 (north) to -89 (south) for latitude, both in steps of 2 degrees, while radius changes from 6358.5 to 5983.5 km inclusive, in steps of 25 km.

Simple

Date (Creation)
2025-04-11
Identifier
http://data.bgs.ac.uk/id/dataHolding/13608406
Originator
  University of Oxford - Paula Koelemeijer
Originator
  University of Oxford - Franck Latallerie
Originator
  University of Oxford - Andrew Walker
Originator
  EOST / CNRS Strasbourg - Sophie Lambotte
Originator
  EOST / CNRS Strasbourg - Alessia Maggi
Originator
  EOST / CNRS Strasbourg - Christophe Zaroli
Distributor
  British Geological Survey - Enquiries
Point of contact
  British Geological Survey - Enquiries
Maintenance and update frequency
notApplicable notApplicable
GEMET - INSPIRE themes, version 1.0
  • Geology
BGS Thesaurus of Geosciences
  • Seismic tomography
  • Citable Data
  • Seismology
  • Surface waves
  • NGDC Deposited Data
dataCentre
  • Citable Data
  • NGDC Deposited Data
Keywords
  • NERC_DDC
Access constraints
otherRestrictions Other restrictions
Other constraints
licenceOGL
Other constraints
Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"
Use constraints
otherRestrictions Other restrictions
Other constraints
The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.
Other constraints
Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"
Metadata language
EnglishEnglish
Topic category
  • Geoscientific information
Geographic identifier
PACIFIC OCEAN [id=2002258]

Date (Revision)
2010

N
S
E
W
thumbnail


Begin date
2023-02-01
End date
2024-07-31
Unique resource identifier
WGS 84 (EPSG::4326)
Distribution format
  • ASCII plain text files ()

Distributor
  British Geological Survey - Enquiries
OnLine resource
Data
OnLine resource
Digital Object Identifier (DOI)

Latallerie, F., Zaroli, C., Lambotte, S., Maggi, A., Walker, A., Koelemeijer, P. (2025). Synthetic Rayleigh wave phase delays and Vsv upper-mantle structure in the Pacific, a synthetic tomography. NERC EDS National Geoscience Data Centre. (Dataset). https://doi.org/10.5285/f30ebc16-592a-4409-aeca-5940730bde84

Hierarchy level
dataset Dataset
Other
dataset

Conformance result

Date (Publication)
2011
Explanation
See the referenced specification
Pass
No

Conformance result

Date (Publication)
2010-12-08
Explanation
See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
Pass
No
Statement
Data are measured using the multi-taper technique (Thompson 1982) between frequencies of 6 to 21 mHz, in steps of 1mHz. The first 5 Slepians are used (Slepian 1978). A datum is the average of measurements over the 5 tapers, and while the standard deviation represents the uncertainty. The tomographic model is developed by applying the SOLA inverse method (Zaroli 2016) to the data using finite-frequency theory (Zhou 2009).
File identifier
33ecc53a-2a3e-490f-e063-3050940a8a40 XML
Metadata language
EnglishEnglish
Hierarchy level
dataset Dataset
Date stamp
2025-11-13
Metadata standard name
UK GEMINI
Metadata standard version
2.3
Point of contact
  British Geological Survey
Environmental Science Centre,Keyworth , NOTTINGHAM , NOTTINGHAMSHIRE , NG12 5GG , United Kingdom
+44 115 936 3100
Dataset URI
http://data.bgs.ac.uk/id/dataHolding/13608406
 
 

Overviews

overview

Spatial extent

N
S
E
W
thumbnail


Keywords


Provided by

logo

Share on social sites

Access to the portal
Read here the full details and access to the data.

Associated resources

Not available


  •  
  •  
  •