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M ulti- S pacecraft D ata A nalysis T ools

M ulti- S pacecraft D ata A nalysis T ools. wave telescope. Wave length about 12.500 km. Glassmeier et al., 2001, 2003. K.H. Glassmeier, D. Constantinescu, Y. Narita IGEP, TU Braunschweig U. Motschmann, IThP, TU Braunschweig. The Wave Telescope: Theory I. wave telescope. Measured data

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M ulti- S pacecraft D ata A nalysis T ools

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  1. Multi-Spacecraft Data Analysis Tools wave telescope Wave length about 12.500 km Glassmeier et al., 2001, 2003 K.H. Glassmeier, D. Constantinescu, Y. Narita IGEP, TU Braunschweig U. Motschmann, IThP, TU Braunschweig

  2. The Wave Telescope: Theory I wave telescope Measured data Propagation matrix Decomposition Motschman and Glassmeier, 1996

  3. The Wave Telescope: Theory II wave telescope Measured covariance matrix Spectral matrix The problem: Invert MB

  4. Dispersion in the Plasma Rest Frame wave telescope Narita et al., 2003

  5. Plasma Turbulence in the Solar Wind wave telescope This is the first directly measured turbulence spectrum in a space plasma regime !!!!! Alfvén Waves Inertial range Dissipation Source Narita et al., 2006

  6. Direct Spectrum vs. Taylor Spectrum wave telescope Taylor‘s hypothesis fails !!!!! Narita et al., 2006

  7. The Source Locator: Decompositioninto Spherical Waves wave telescope Constantinescu et al., 2006 Wave telescope propagation matrix Source locator propagation matrix

  8. Static Wave Source: Source Distance wave telescope The Source Constantinescu et al., 2006

  9. Static Wave Source: Source Direction wave telescope Source Spacecraft Constantinescu et al., 2006

  10. A Model Moving Source wave telescope The moving source‘ position Constantinescu et al., 2006

  11. A Really Moving Source: CLUSTER wave telescope Moving source s/c Magnetic field line Constantinescu et al., 2006

  12. A THEMIS Task wave telescope The four CLUSTER s/c together with a generalized minimum variance analysis method represent a unique tool to study plasma wave properties in space. We need to develope similar tools appropriate for THEMIS !

  13. A THEMIS Task wave telescope The four CLUSTER s/c together with a generalized minimum variance analysis method represent a unique tool to study plasma wave properties in space. We need to develope similar tools appropriate for THEMIS ! December 10, 1970

  14. References wave telescope Glassmeier, K.H. et al., CLUSTER as a wave telescope: First results from the fluxgate magnetometer, Ann. Geophys., 19, 1439-1448, 2001. Narita, Y., K.H. Glassmeier, S. Schäfer, U. Motschmann, K. Sauer, I. Dandouras, K.H. Fornacon, E. Georgescu, H. Reme, Dispersion analysis of ULF waves in the foreshock using Cluster data and the wave telescope technique, Geophys. Res. Lett., 30 (13), doi:10.1029/2003GL017432, 2003. Constantinescu, D., K.H. Glassmeier, U. Motschmann, R. Treumann, M. Fränz, Plasma wave source location using CLUSTER as a spherical wave telescope, J. Geophys. Res., submitted, 2006. Narita, Y., K.H. Glassmeier, R. Treumann, Magnetic turbulence spectra in the high-beta plasma upstream of the terrestrial bowshock, Phys. Rev. Lett., submitted, 2006.

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