Synthetic seismic waveforms of Ultra-Low Velocity Zone Earthmodels (NERC grant NE/H022473/1)

Dataset contains 3D synthetic seismic waveforms for axisymmetric global Earth velocity models. The waveforms were calculated using the finite difference approach with the PSVAxi algorithm (Jahnke, G et al., 2008. doi:10.1111/j.1365-246X.2008.03744.x). The Earthmodels are 1D and use PREM parameters except close to the core-mantle boundary (CMB) where 3D ultra-low velocity zones (ULVZs) are added to the PREM background model. ULVZ are thin layers of strongly reduced seismic velocities located at the CMB that have been observed in several regions of the Earth. The dataset models interaction of the seismic wavefield with ULVZ structure with varying elastic parameters (P-wave, S-wave velocity, density), location (location at source or receiver side along the great circle path), ULVZ length, shape (box, Gaussian, trapezoid) and height. Detailed description of the approach and the model space are given in Vanacore et al, (2016). Data format is SAC (Seismic Analysis Code). Vanacore, E.A., Rost, S., Thorne, M.S., 2016. Ultralow-velocity zone geometries resolved by multidimensional waveform modelling. Geophys. J. Int. 206, 659–674. doi:10.1093/gji/ggw114
 
Citation proposal
(2016) . Synthetic seismic waveforms of Ultra-Low Velocity Zone Earthmodels (NERC grant NE/H022473/1). https://metadata.bgs.ac.uk/geonetwork/srv/api/records/48042030-e097-0f69-e054-002128a47908

Simple

Date ( Publication )
2016-03
Identifier
http://data.bgs.ac.uk/id/dataHolding/13607094

  Point of contact

Maintenance and update frequency
notApplicable notApplicable
GEMET - INSPIRE themes
  • Geology
BGS Thesaurus of Geosciences
  • Seismic waves , Models , Shear waves , Seismology , Primary waves
Keywords
  • NERC_DDC
Access constraints
otherRestrictions Other restrictions
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
The dataset is made available to external clients under BGS Digital Data Licence terms and conditions. Revert to the IPR Section (iprdigital@bgs.ac.uk ) if further advice is required with regard to permitted usage.
Metadata language
English English
Topic category
  • Geoscientific information
Geographic identifier
WORLD [id=100000]

 

Date ( Creation )
1979

N
S
E
W


Supplemental Information
Split award, lead grant NE/H022473/1, child grant NE/H021027/1

Reference System Information

No information provided.
Distribution format
  • ()

OnLine resource
http://dx.doi.org/10.1093/gji/ggw114  
Hierarchy level
dataset Dataset
Other
dataset

Conformance result

Date ( Publication )
2011
Explanation
See the referenced specification
Pass
false

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
false
Statement
The dataset consists of raw data waveforms from FD simulations and no processing has been performed. Ground displacement is given in vertical, radial and transverse direction.

gmd:MD_Metadata

File identifier
48042030-e097-0f69-e054-002128a47908   XML
Metadata language
English English
Hierarchy level
dataset Dataset
Date stamp
2021-07-30
Metadata standard version
2.3

  Point of contact

Dataset URI
http://data.bgs.ac.uk/id/dataHolding/13607094
 
 

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