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  • 1
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    Ionospheric Multi-Spacecraft Analysis Tools : approaches for deriving ionospheric parameters (2020)
    Cham : Springer
    Details
    Call number: 978-3-030-26732-2 (e-book) ; M 20. 93238
    Description / Table of Contents: Dedication -- Preface -- Chapter 1: Introduction -- Chapter 2: Introduction to Spherical Elementary Current Systems -- Chapter 3: Spherical Elementary Current Systems applied to Swarm data -- Chapter 4: Local least squares analysis of auroral current structures in multi-spacecraft data -- Chapter 5: Multi-spacecraft current estimates at Swarm -- Chapter 6: Applying the dual-spacecraft approach to the Swarm constellation for deriving radial current density. Chapter 7: Science data products for AMPERE -- Chapter 8: ESA Field Aligned Currents - Methodology Inter-Comparison Exercise -- Chapter 9: Spherical Cap Harmonic Analysis techniques for mapping high-latitude ionospheric plasma flow - Application to the Swarm satellite mission -- Chapter 10: Recent Progress on Inverse and Data Assimilation Procedure for High-Latitude Ionospheric Electrodynamics -- Chapter 11: Estimating currents and electric fields at low-latitudes from satellite magnetic measurements -- Chapter 12. Models of the main geomagnetic field based on multi-satellite magnetic data and gradients – Techniques and latest results from the Swarm mission -- Index
    Description / Table of Contents: This open access book provides a comprehensive toolbox of analysis techniques for ionospheric multi-satellite missions. The immediate need for this volume was motivated by the ongoing ESA Swarm satellite mission, but the tools that are described are general and can be used for any future ionospheric multi-satellite mission with comparable instrumentation. In addition to researching the immediate plasma environment and its coupling to other regions, such a mission aims to study the Earth’s main magnetic field and its anomalies caused by core, mantle, or crustal sources. The parameters for carrying out this kind of work are examined in these chapters. Besides currents, electric fields, and plasma convection, these parameters include ionospheric conductance, Joule heating, neutral gas densities, and neutral winds
    Type of Medium: 12
    Pages: 1 Online-Ressource (X, 288 p. 97 illus., 85 illus. in color)
    Edition: 1st ed. 2020
    ISBN: 9783030267322
    Series Statement: ISSI Scientific Report Series 17
    URL: Open Access
    DOI: 10.1007/978-3-030-26732-2
    Language: English
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  • 2
    Unknown
    Ionospheric Multi-Spacecraft Analysis Tools : Approaches for Deriving Ionospheric Parameters (2020)
    Cham : Springer
    Details
    Keywords: ionosphere ; magnetospheric coupling ; geomagnetic field ; field-aligned currents ; spherical elementary current systems ; Swarm data ; Swarm constellation ; ionospheric plasma flow ; ionospheric electrodynamics ; satellite magnetic measurements ; geomagnetic field modeling
    Description / Table of Contents: Introduction / Malcolm Wray Dunlop, Hermann Lühr / Pages 1-4 --- Introduction to Spherical Elementary Current Systems / Heikki Vanhamäki, Liisa Juusola / Pages 5-33 --- Spherical Elementary Current Systems Applied to Swarm Data / Heikki Vanhamäki, Liisa Juusola, Kirsti Kauristie, Abiyot Workayehu, Sebastian Käki / Pages 35-53 --- Local Least Squares Analysis of Auroral Currents / Joachim Vogt, Adrian Blagau, Costel Bunescu, Maosheng He / Pages 55-81 --- Multi-spacecraft Current Estimates at Swarm / Malcolm Wray Dunlop, J.-Y. Yang, Y.-Y. Yang, Hermann Lühr, J.-B. Cao / Pages 83-116 --- Applying the Dual-Spacecraft Approach to the Swarm Constellation for Deriving Radial Current Density / Hermann Lühr, Patricia Ritter, Guram Kervalishvili, Jan Rauberg / Pages 117-140 --- Science Data Products for AMPERE / Colin L. Waters, B. J. Anderson, D. L. Green, H. Korth, R. J. Barnes, Heikki Vanhamäki / Pages 141-165 --- ESA Field-Aligned Currents—Methodology Inter-comparison Exercise / Lorenzo Trenchi, The FAC-MICE Team, K. Kauristie, S. Käki, Heikki Vanhamäki, L. Juusola et al. / Pages 167-188 --- Spherical Cap Harmonic Analysis Techniques for Mapping High-Latitude Ionospheric Plasma Flow—Application to the Swarm Satellite Mission / Robyn A. D. Fiori / Pages 189-218 --- Recent Progress on Inverse and Data Assimilation Procedure for High-Latitude Ionospheric Electrodynamics / Tomoko Matsuo / Pages 219-232 --- Estimating Currents and Electric Fields at Low Latitudes from Satellite Magnetic Measurements / Patrick Alken / Pages 233-254 --- Models of the Main Geomagnetic Field Based on Multi-satellite Magnetic Data and Gradients—Techniques and Latest Results from the Swarm Mission / Christopher C. Finlay / Pages 255-284
    Pages: Online-Ressource (X, 288 pages) , Illustrationen, Diagramme
    ISBN: 9783030267322
    URL: https://link.springer.com/book/10.1007/978-3-030-26732-2
    Language: English
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  • 3
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    Seismo-ionospheric anomalies in ionospheric TEC and plasma density before the 17 July 2006 M7.7 south of Java earthquake (2017)
    Copernicus
    Details
    Publication Date: 2017-04-25
    Description: In this paper, we report significant evidence for preseismic ionospheric anomalies in total electron content (TEC) of the global ionosphere map (GIM) and plasma density appearing on day 2 before the 17 July 2006 M7.7 south of Java earthquake. After distinguishing other anomalies related to the geomagnetic activities, we found a temporal precursor around the epicenter on day 2 before the earthquake (15 July 2006), which agrees well with the spatial variations in latitude–longitude–time (LLT) maps. Meanwhile, the sequences of latitude–time–TEC (LTT) plots reveal that the TECs on epicenter side anomalously decrease and lead to an anomalous asymmetric structure with respect to the magnetic equator in the daytime from day 2 before the earthquake. This anomalous asymmetric structure disappears after the earthquake. To further confirm these anomalies, we studied the plasma data from DEMETER satellite in the earthquake preparation zone (2046.4 km in radius) during the period from day 45 before to day 10 after the earthquake, and also found that the densities of both electron and total ion in the daytime significantly increase on day 2 before the earthquake. Very interestingly, O+ density increases significantly and H+ density decreases, while He+ remains relatively stable. These results indicate that there exists a distinct preseismic signal (preseismic ionospheric anomaly) over the epicenter.
    Print ISSN: 0992-7689
    Electronic ISSN: 1432-0576
    Topics: Geosciences , Physics
    Published by Copernicus on behalf of European Geosciences Union.
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