A two-step along-track spectral analysis for estimating the magnetic signals of magnetospheric ring current from Swarm data

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10384811" target="_blank" >RIV/00216208:11320/18:10384811 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1093/gji/ggx471" target="_blank" >https://doi.org/10.1093/gji/ggx471</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/gji/ggx471" target="_blank" >10.1093/gji/ggx471</a>

Result language
angličtina
Original language name
A two-step along-track spectral analysis for estimating the magnetic signals of magnetospheric ring current from Swarm data
Original language description
This study deals with the analysis of Swarm vector magnetic field measurements in order to estimate the magnetic field of magnetospheric ring current. For a single Swarm satellite, the magnetic measurements are processed by along-track spectral analysis on a track-by-track basis. The main and lithospheric magnetic fields are modelled by the CHAOS-6 field model and subtracted from the along-track Swarm magnetic data. The mid-latitude residual signal is then spectrally analysed and extrapolated to the polar regions. The resulting model of the magnetosphere (model MME) is compared to the existing Swarm Level 2 magnetospheric field model (MMA_SHA 2C). The differences of up to 10 nT are found on the nightsides Swarm data from 2014 April 8 to May 10, which are due to different processing schemes used to construct the two magnetospheric magnetic field models. The forward-simulated magnetospheric magnetic field generated by the external part of model MME then demonstrates the consistency of the separation of the Swarm along-track signal into the external and internal parts by the two-step along-track spectral analysis.
Czech name
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Czech description
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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
10500 - Earth and related environmental sciences

Project
<a href="/en/project/GA17-03689S" target="_blank" >GA17-03689S: Ocean flows and their magnetic signatures on global and regional scales</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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