About: On the detectability of 3-D postperovskite distribution in D '' by electromagnetic induction

Facets (new session)
Description
Metadata
Settings
- owl:sameAs
- Inference Rule:

About: On the detectability of 3-D postperovskite distribution in D '' by electromagnetic induction Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1016/j.pepi.2012.02.012
Description	1-D global inversions of observatory and satellite geomagnetic data reveal radial conductivity profiles in the Earth's mantle by means of electromagnetic induction. Traditionally, these have been interpreted as average values at given depth. However, the predominant dipolar geometry of the magnetospheric ring current represents strong bias in 1-D interpretation of the responses of a fully 3-D heterogeneous Earth. We present a series of synthetic checks, applying 1-D time-domain inversion technique to 3-D simulated data for conductivity models with lateral heterogeneities in the lowermost mantle, ranging from simple geometrical configurations to complicated structures derived from phase composition based on geodynamical modelling. We show that it is the presence or lack of lateral interconnection of the highly conductive phase in the direction of prevailing external currents that determines the results of 1-D inversion. In particular, this effect can explain the recently shown invisibility of highly conductive postperovskite in the D '' layer to induction studies excited by strong transient signals-the geomagnetic storms. 1-D global inversions of observatory and satellite geomagnetic data reveal radial conductivity profiles in the Earth's mantle by means of electromagnetic induction. Traditionally, these have been interpreted as average values at given depth. However, the predominant dipolar geometry of the magnetospheric ring current represents strong bias in 1-D interpretation of the responses of a fully 3-D heterogeneous Earth. We present a series of synthetic checks, applying 1-D time-domain inversion technique to 3-D simulated data for conductivity models with lateral heterogeneities in the lowermost mantle, ranging from simple geometrical configurations to complicated structures derived from phase composition based on geodynamical modelling. We show that it is the presence or lack of lateral interconnection of the highly conductive phase in the direction of prevailing external currents that determines the results of 1-D inversion. In particular, this effect can explain the recently shown invisibility of highly conductive postperovskite in the D '' layer to induction studies excited by strong transient signals-the geomagnetic storms. (en)
Title	On the detectability of 3-D postperovskite distribution in D '' by electromagnetic induction On the detectability of 3-D postperovskite distribution in D '' by electromagnetic induction (en)
skos:prefLabel	On the detectability of 3-D postperovskite distribution in D '' by electromagnetic induction On the detectability of 3-D postperovskite distribution in D '' by electromagnetic induction (en)
skos:notation	RIV/00216208:11320/12:10128377!RIV13-GA0-11320___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GAP210/11/1366)
http://linked.open...iv/cisloPeriodika	AUGUST
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Velímský, Jakub Čížková, Hana Benešová, Nina
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	156377
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/12:10128377
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Electrical conductivity; Geomagnetic induction (en)
http://linked.open.../riv/klicoveSlovo	Electrical conductivity Geomagnetic induction
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[F0C8A70AC01D]
http://linked.open...i/riv/nazevZdroje	Physics of the Earth and Planetary Interiors
http://linked.open...in/vavai/riv/obor	DE
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Transport Properties and Dynamics of the Earth's Lower Mantle
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	202
http://linked.open...iv/tvurceVysledku	Velímský, Jakub Čížková, Hana Benešová, Nina
http://linked.open...ain/vavai/riv/wos	000308776000007
issn	0031-9201
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.pepi.2012.02.012
http://localhost/t...ganizacniJednotka	11320

Faceted Search & Find service v1.16.118 as of Jun 21 2024

Alternative Linked Data Documents: ODE Content Formats:

RDF

ODATA

Microdata

About

OpenLink Virtuoso version 07.20.3240 as of Jun 21 2024, on Linux (x86_64-pc-linux-gnu), Single-Server Edition (126 GB total memory, 58 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software