Alaska 2020 update for USGS G19AP00019: Initial Development of Alaska Community Seismic Velocity Models
Seismic velocity model AKEP2020 uses earthquake travel-time and ambient noise group velocity data to update Eberhart-Phillips et al. (2006: AKEP2006) The model is provided in a table: vlAKEP2020xyzltlnSFDRE.tbl.txt and in the simul output from velocity inversion: vlAKEP2020.out.txt Map plots of Vp a...
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Zenodo
2020
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Online Access: | https://dx.doi.org/10.5281/zenodo.3727243 https://zenodo.org/record/3727243 |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
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unknown |
topic |
Alaska Seismic Velocity Crustal Struture |
spellingShingle |
Alaska Seismic Velocity Crustal Struture Eberhart-Phillips, Donna Nayak, Avinash Ruppert, Natalia Thurber, Clifford Alaska 2020 update for USGS G19AP00019: Initial Development of Alaska Community Seismic Velocity Models |
topic_facet |
Alaska Seismic Velocity Crustal Struture |
description |
Seismic velocity model AKEP2020 uses earthquake travel-time and ambient noise group velocity data to update Eberhart-Phillips et al. (2006: AKEP2006) The model is provided in a table: vlAKEP2020xyzltlnSFDRE.tbl.txt and in the simul output from velocity inversion: vlAKEP2020.out.txt Map plots of Vp and Vp/Vs are also provided, with lines denoting limits of adequate data. Velocity Inversion Procedure Notes for AKEP2020 model The 2006 AK model and the 2020 updated model both use Transverse Mercator coordinate transformation with central meridian= -150 and counterclockwise rotation of 162.1. Earth-flattening transformation is used for velocity during ray-tracing. The depths are relative to sea-level and station elevations are used. For the group-velocity data, the surface is taken as the 30-km median filtered topography. Velocity with the 3D gridded model is defined by linearly interpolating between nodes. A gradational inversion approach was used with earthquake and shot travel-time data, and group velocity observations for periods 6-15 s. The table provides, from the computed resolution matrix, the diagonal resolution element (DRE), and the spread function (SF), for each Vp and Vp/Vs node. This material is based upon work supported by the U.S. Geological Survey under Grant No. G19AP00019. Note that an earlier model, AKEP2018, from the first year of this funded project was reported in Eberhart-Phillips et al. (2019). The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the opinions or policies of the U.S. Geological Survey. Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey : {"references": ["Eberhart-Phillips, D., D. H. Christensen, T. M. Brocher, R. Hansen, N. A. Ruppert, P. J. Haeussler, and G. A. Abers (2006), Imaging the transition from Aleutian subduction to Yakutat collision in central Alaska, with local earthquakes and active source data, J. Geophys. Res., 111, B11303, doi:10.1029/2005JB004240.", "Eberhart-Phillips, D., Reyners, M., 2012. Imaging the Hikurangi plate interface region with improved local-earthquake tomography. Geophys. J. Int., 190, 1221-1242, DOI: 10.1111/j.1365-246X.2012.05553.x.", "Eberhart-Phillips, D., S. Bannister, and S. Ellis, Imaging P and S Attenuation in the Termination Region of the Hikurangi Subduction Zone, New Zealand, Geophys. J. Int., 198, 516-536, 2014.", "Eberhart-Philips, D. and Fry, B., 2017. A new scheme for joint surface wave and earthquake travel-time inversion and resulting 3-D velocity model for the western North Island, New Zealand, Phys. Earth and Plan. Int., 269, 98\u2013111.", "Eberhart\u2010Phillips, D., A. Nayak, N. Ruppert, and C. Thurber (2019), Alaska 2018 update for USGSG18AP00017: Initial Development of Alaska Community Seismic Velocity Models [Data set], Zenodo, doi.org/10.5281/zenodo.2544925.", "Herrmann, R. B. (2013), Computer programs in seismology: An evolving tool for instruction and research, Seis. Res. Lett., 84, 1081-1088, doi:10.1785/0220110096.", "Li, J., G. A. Abers, Y. H. Kim, and D. Christensen (2013), Alaska megathrust 1: Seismicity 43\u2009years after the great 1964 Alaska megathrust earthquake, J. Geophys. Res., 118, 4861-4871, doi:10.1002/jgrb.50358.", "Eberhart-Phillips, D., and M. Reyners, Continental subduction and three-dimensional crustal structure: The northern South Island, New Zealand, J. Geophys. Res., 102, 11,843-11,861, 1997."]} |
format |
Dataset |
author |
Eberhart-Phillips, Donna Nayak, Avinash Ruppert, Natalia Thurber, Clifford |
author_facet |
Eberhart-Phillips, Donna Nayak, Avinash Ruppert, Natalia Thurber, Clifford |
author_sort |
Eberhart-Phillips, Donna |
title |
Alaska 2020 update for USGS G19AP00019: Initial Development of Alaska Community Seismic Velocity Models |
title_short |
Alaska 2020 update for USGS G19AP00019: Initial Development of Alaska Community Seismic Velocity Models |
title_full |
Alaska 2020 update for USGS G19AP00019: Initial Development of Alaska Community Seismic Velocity Models |
title_fullStr |
Alaska 2020 update for USGS G19AP00019: Initial Development of Alaska Community Seismic Velocity Models |
title_full_unstemmed |
Alaska 2020 update for USGS G19AP00019: Initial Development of Alaska Community Seismic Velocity Models |
title_sort |
alaska 2020 update for usgs g19ap00019: initial development of alaska community seismic velocity models |
publisher |
Zenodo |
publishDate |
2020 |
url |
https://dx.doi.org/10.5281/zenodo.3727243 https://zenodo.org/record/3727243 |
long_lat |
ENVELOPE(47.867,47.867,-67.967,-67.967) |
geographic |
Christensen New Zealand |
geographic_facet |
Christensen New Zealand |
genre |
Yakutat Alaska |
genre_facet |
Yakutat Alaska |
op_relation |
https://dx.doi.org/10.5281/zenodo.3727244 |
op_rights |
Open Access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5281/zenodo.3727243 https://doi.org/10.5281/zenodo.3727244 |
_version_ |
1766235439185788928 |
spelling |
ftdatacite:10.5281/zenodo.3727243 2023-05-15T18:44:39+02:00 Alaska 2020 update for USGS G19AP00019: Initial Development of Alaska Community Seismic Velocity Models Eberhart-Phillips, Donna Nayak, Avinash Ruppert, Natalia Thurber, Clifford 2020 https://dx.doi.org/10.5281/zenodo.3727243 https://zenodo.org/record/3727243 unknown Zenodo https://dx.doi.org/10.5281/zenodo.3727244 Open Access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 info:eu-repo/semantics/openAccess CC-BY Alaska Seismic Velocity Crustal Struture dataset Dataset 2020 ftdatacite https://doi.org/10.5281/zenodo.3727243 https://doi.org/10.5281/zenodo.3727244 2021-11-05T12:55:41Z Seismic velocity model AKEP2020 uses earthquake travel-time and ambient noise group velocity data to update Eberhart-Phillips et al. (2006: AKEP2006) The model is provided in a table: vlAKEP2020xyzltlnSFDRE.tbl.txt and in the simul output from velocity inversion: vlAKEP2020.out.txt Map plots of Vp and Vp/Vs are also provided, with lines denoting limits of adequate data. Velocity Inversion Procedure Notes for AKEP2020 model The 2006 AK model and the 2020 updated model both use Transverse Mercator coordinate transformation with central meridian= -150 and counterclockwise rotation of 162.1. Earth-flattening transformation is used for velocity during ray-tracing. The depths are relative to sea-level and station elevations are used. For the group-velocity data, the surface is taken as the 30-km median filtered topography. Velocity with the 3D gridded model is defined by linearly interpolating between nodes. A gradational inversion approach was used with earthquake and shot travel-time data, and group velocity observations for periods 6-15 s. The table provides, from the computed resolution matrix, the diagonal resolution element (DRE), and the spread function (SF), for each Vp and Vp/Vs node. This material is based upon work supported by the U.S. Geological Survey under Grant No. G19AP00019. Note that an earlier model, AKEP2018, from the first year of this funded project was reported in Eberhart-Phillips et al. (2019). The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the opinions or policies of the U.S. Geological Survey. Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey : {"references": ["Eberhart-Phillips, D., D. H. Christensen, T. M. Brocher, R. Hansen, N. A. Ruppert, P. J. Haeussler, and G. A. Abers (2006), Imaging the transition from Aleutian subduction to Yakutat collision in central Alaska, with local earthquakes and active source data, J. Geophys. Res., 111, B11303, doi:10.1029/2005JB004240.", "Eberhart-Phillips, D., Reyners, M., 2012. Imaging the Hikurangi plate interface region with improved local-earthquake tomography. Geophys. J. Int., 190, 1221-1242, DOI: 10.1111/j.1365-246X.2012.05553.x.", "Eberhart-Phillips, D., S. Bannister, and S. Ellis, Imaging P and S Attenuation in the Termination Region of the Hikurangi Subduction Zone, New Zealand, Geophys. J. Int., 198, 516-536, 2014.", "Eberhart-Philips, D. and Fry, B., 2017. A new scheme for joint surface wave and earthquake travel-time inversion and resulting 3-D velocity model for the western North Island, New Zealand, Phys. Earth and Plan. Int., 269, 98\u2013111.", "Eberhart\u2010Phillips, D., A. Nayak, N. Ruppert, and C. Thurber (2019), Alaska 2018 update for USGSG18AP00017: Initial Development of Alaska Community Seismic Velocity Models [Data set], Zenodo, doi.org/10.5281/zenodo.2544925.", "Herrmann, R. B. (2013), Computer programs in seismology: An evolving tool for instruction and research, Seis. Res. Lett., 84, 1081-1088, doi:10.1785/0220110096.", "Li, J., G. A. Abers, Y. H. Kim, and D. Christensen (2013), Alaska megathrust 1: Seismicity 43\u2009years after the great 1964 Alaska megathrust earthquake, J. Geophys. Res., 118, 4861-4871, doi:10.1002/jgrb.50358.", "Eberhart-Phillips, D., and M. Reyners, Continental subduction and three-dimensional crustal structure: The northern South Island, New Zealand, J. Geophys. Res., 102, 11,843-11,861, 1997."]} Dataset Yakutat Alaska DataCite Metadata Store (German National Library of Science and Technology) Christensen ENVELOPE(47.867,47.867,-67.967,-67.967) New Zealand |