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Spatio -temporal structures of equatorial F-region plasma irregularities &

Spatio -temporal structures of equatorial F-region plasma irregularities & Geomagnetic Regular Daily Variations ( Sq , Solar quiet) as seen in space and at ground Claudia Stolle 1,2 , Jaeheung Park 1 , Jorge L. Chau 3

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Spatio -temporal structures of equatorial F-region plasma irregularities &

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  1. Spatio-temporal structures of equatorial F-region plasma irregularities & Geomagnetic Regular Daily Variations (Sq, Solar quiet)as seen in space and at ground Claudia Stolle1,2, JaeheungPark1, Jorge L. Chau3 Anticipated cooperations: Joe Huba (US), David Hysell (US), Nils Olsen (DK) 1 Helmholtz Centre Potsdam, GFZ, German Research Centre for Geosciences 2 University of Potsdam, Institute of Mathematics and Institute of Earth and Environmental Sciences 3Leibnitz-Institute for Atmospheric Physics, Kühlungsbornand University of Rostock Workshop SPP “DynamicEarth”, 3-4 July 2014, GFZ Potsdam

  2. What do we know about equatorial plasma irregularities? • Global seasonal-LT-longitude occurrence • Rather independent on magnetic activity • Significant day-to-day variability • Signatures in the magnetic field • Disturb GNSS signals Workshop SPP “DynamicEarth”, 3-4 July 2014, GFZ Potsdam

  3. What do we know about equatorial plasma irregularities? Aveiro et al., 2011 • Global seasonal-LT-longitude occurrence • Rather independent on magnetic activity • Significant day-to-day variability • Signatures in the magnetic field • Disturb GNSS signals Workshop SPP “DynamicEarth”, 3-4 July 2014, GFZ Potsdam

  4. What do we know about equatorial plasma irregularities? Aveiro et al., 2011 • Global seasonal-LT-longitude occurrence • Rather independent on magnetic activity • Significant day-to-day variability • Signatures in the magnetic field • Disturb GNSS signals Workshop SPP “DynamicEarth”, 3-4 July 2014, GFZ Potsdam

  5. What can we gain from new observations? • Spatio-temporal structureofirregularities (constellationaspect) • Speed andstructuringofirregularities Workshop SPP “DynamicEarth”, 3-4 July 2014, GFZ Potsdam

  6. What can we gain from new observations? • Spatio-temporal structureofirregularities (constellationaspect) • Inside/outside irregularities observed crustal field model prediction electron density Workshop SPP “DynamicEarth”, 3-4 July 2014, GFZ Potsdam

  7. What can we gain from new observations? • Spatio-temporal structure of irregularities (combined with ground-based data) Xiong et al., 2014 Workshop SPP “DynamicEarth”, 3-4 July 2014, GFZ Potsdam

  8. What can we gain from new observations? • Spatio-temporal structure of irregularities (combined with ground-based data) • Multiparameter approach • Whenweunderstandtheformationofirregularities, wecanpredictthem ... • Ifweunderstandhowplamaandneutral densitiesandtemperaturevariationsdeterminethemagneticfieldsignature, wecouldcorrectforit in themagneticdata Workshop SPP “DynamicEarth”, 3-4 July 2014, GFZ Potsdam

  9. Geomagnetic Regular Daily Variations (Sq, Solar quiet)as seen in space (by Swarm) and at ground • Tidal winds in ionospheric E-layer (100-150 km altitude) produce electric field E, electric currents j and corresponding magnetic field signatures B • Climatology of magnetic signature B (variability with season and solar cycle) as seen by Swarm and ground observatories • First-ever direct satellite observation of the electric field E associated with Sq • Constraining ionosphere/thermosphere electrodynamics by comparing measurements of E (satellite) and of B (satellite and ground) with thermosphere-ionosphere model simulations Workshop SPP “DynamicEarth”, 3-4 July 2014, GFZ Potsdam

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