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dc.contributor.author
Alekseev, Dmitry
dc.contributor.author
Kuvshinov, Alexey
dc.contributor.author
Palshin, Nikolay
dc.date.accessioned
2018-10-29T15:44:36Z
dc.date.available
2017-06-11T18:36:10Z
dc.date.available
2018-10-25T08:00:21Z
dc.date.available
2018-10-29T15:44:36Z
dc.date.issued
2015-07-04
dc.identifier.issn
1343-8832
dc.identifier.issn
1880-5981
dc.identifier.other
10.1186/s40623-015-0272-5
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/102965
dc.identifier.doi
10.3929/ethz-b-000102965
dc.description.abstract
We have compiled a global three-dimensional (3D) conductivity model of the Earth with an ultimate goal to be used for realistic simulation of geomagnetically induced currents (GIC), posing a potential threat to man-made electric systems. Bearing in mind the intrinsic frequency range of the most intense disturbances (magnetospheric substorms) with typical periods ranging from a few minutes to a few hours, the compiled 3D model represents the structure in depth range of 0–100 km, including seawater, sediments, earth crust, and partly the lithosphere/asthenosphere. More explicitly, the model consists of a series of spherical layers, whose vertical and lateral boundaries are established based on available data. To compile a model, global maps of bathymetry, sediment thickness, and upper and lower crust thicknesses as well as lithosphere thickness are utilized. All maps are re-interpolated on a common grid of 0.25×0.25 degree lateral spacing. Once the geometry of different structures is specified, each element of the structure is assigned either a certain conductivity value or conductivity versus depth distribution, according to available laboratory data and conversion laws. A numerical formalism developed for compilation of the model, allows for its further refinement by incorporation of regional 3D conductivity distributions inferred from the real electromagnetic data. So far we included into our model four regional conductivity models, available from recent publications, namely, surface conductance model of Russia, and 3D conductivity models of Fennoscandia, Australia, and northwest of the United States.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Terra Scientific Publishing Company
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Global 3-D conductivity model
en_US
dc.subject
Geomagnetically induced currents
en_US
dc.subject
Magnetospheric substorms
en_US
dc.subject
Geoelectric field
en_US
dc.title
Compilation of 3D global conductivity model of the Earth for space weather applications
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
ethz.journal.title
Earth, Planets and Space
ethz.journal.volume
67
en_US
ethz.journal.abbreviated
Earth planets space
ethz.pages.start
108
en_US
ethz.size
11 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.scopus
ethz.identifier.nebis
001969463
ethz.publication.place
Tokyo
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03734 - Jackson, Andrew / Jackson, Andrew
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03734 - Jackson, Andrew / Jackson, Andrew
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03734 - Jackson, Andrew / Jackson, Andrew
ethz.date.deposited
2017-06-11T18:36:16Z
ethz.source
ECIT
ethz.identifier.importid
imp5936535ca58f224999
ethz.ecitpid
pub:161129
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-12T14:19:58Z
ethz.rosetta.lastUpdated
2018-10-29T15:44:46Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.atitle=Compilation%20of%203D%20global%20conductivity%20model%20of%20the%20Earth%20for%20space%20weather%20applications&rft.jtitle=Earth,%20Planets%20and%20Space&rft.date=2015-07-04&rft.volume=67&rft.spage=108&rft.issn=1343-8832&1880-5981&rft.au=Alekseev,%20Dmitry&Kuvshinov,%20Alexey&Palshin,%20Nikolay&rft.genre=article&rft_id=info:doi/10.1186/s40623-015-0272-5&
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