On the Observability of the Time-Variable Lithospheric Signal in Satellite Magnetic Data
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F19%3A00511932" target="_blank" >RIV/67985815:_____/19:00511932 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/s10712-019-09546-8" target="_blank" >https://doi.org/10.1007/s10712-019-09546-8</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10712-019-09546-8" target="_blank" >10.1007/s10712-019-09546-8</a>
Alternative languages
Result language
angličtina
Original language name
On the Observability of the Time-Variable Lithospheric Signal in Satellite Magnetic Data
Original language description
We first inverted the magnetic field vector from CHAOS-6 over degrees 21-120, after subtraction of a remanent model, to a vertically integrated susceptibility map. Using this susceptibility distribution and taking into account the evolving core fields from the CHAOS-6 model, the time-varying lithospheric signal is computed. The results depend on the time span and the altitude considered, e.g., an altitude of 400 km and a span of 17 years can produce more than 0.5 nT variations resulting in a peak-to-peak value of nearly 1 nT. The vertically integrated quantities appear to be a useful choice for parameterising lithospheric time variations, also for providing data corrections at the satellite altitude. The effect of the choice of the core field, which enters the inversion, on the lithospheric time variation is also studied-this effect is found less important even for core fields 20 years apart.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10508 - Physical geography
Result continuities
Project
<a href="/en/project/LG15003" target="_blank" >LG15003: Calibration of accelerometers onboard SWARM satellites by means of kinematic orbits and gravity field models</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Surveys in Geophysics
ISSN
1573-0956
e-ISSN
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Volume of the periodical
40
Issue of the periodical within the volume
5
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
15
Pages from-to
1229-1243
UT code for WoS article
000484978000008
EID of the result in the Scopus database
2-s2.0-85071607567