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1–20 von 22 Ergebnissen
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    Typical Behaviour of the High Latitude Lower Ionosphere

    Friedrich, M. / Torkar, K. M. / Committee on Space Research; Scientific Commission C | British Library Conference Proceedings | 1995

    Towards neural network based models for the ionospheric D-region

    McKinnell, L.-A. / Friedrich, M. / European Space Agency et al. | British Library Conference Proceedings | 2003

    The Charge Balance in the Presence of Meteoric Smoke in the Upper Mesosphere under Winter Conditions - Preliminary Results

    Hoppe, U.-P. / Friedrich, M. / Blix, T.A. et al. | British Library Conference Proceedings | 2011

    Studies of Polar Mesosphere Summer Echoes by VHF Radar and Rocket Probes

    Hoppe, U.-P. / Blix, T. A. / Thrane, E. V. et al. | British Library Conference Proceedings | 1994

    Rocket Measurements of Atmospheric Nightglow

    Eriksen, T. / Hoppe, U.-P. / European Space Agency; Programme Advisory Committee on the Special Project concerning the Launching of Sounding Rockets | British Library Conference Proceedings | 1999

    Ozone Lidar Analysis Technique: Combining Balloon Data with Lidar Measurements

    Hansen, G. / Hoppe, U.-P. / Nardi, B. et al. | British Library Conference Proceedings | 1997

    NITTANYSAT - A Student Satellite Mission for D-Region Study and Calibration of Riometers

    Friedrich, M. / European Space Agency | British Library Conference Proceedings | 2007

    Long-Term Trends and other Residual Features of the Lower Ionosphere

    Friedrich, M. / Torkar, K. M. / European Space Agency et al. | British Library Conference Proceedings | 2001

    Investigation of atmospheric neutral constituents by photoionization techniques

    Croskey, C. L. / Mitchell, J. D. / Friedrich, M. et al. | British Library Conference Proceedings | 2003

    In-situ measurements of neutral temperature in the middle atmosphere by using electrons as proxy

    Svenes, K. R. / Blix, T. A. / Hoppe, U.-P. et al. | British Library Conference Proceedings | 2005

    Empirical D-Region Modelling, a Progress Report

    Friedrich, M. / Torkar, K. M. / International Council of Scientific Union; Committee on Space Research | British Library Conference Proceedings | 1998

    Electron Loss and Meteoric Dust in the Mesosphere

    Friedrich, M. / Rapp, M. / Blix, T. et al. | British Library Conference Proceedings | 2011

    D-region electron densities obtained by differential absorption and phase measurements with a 3-MHz Doppler radar

    Singer, W. / Latteck, R. / Friedrich, M. et al. | British Library Conference Proceedings | 2005

    Comparison of Plasma Probes in the Lower Ionosphere

    Friedrich, M. / Torkar, K. M. / Goldberg, R. A. et al. et al. | British Library Conference Proceedings | 1997

    Comparison Between an Empirical and a Theoretical Model of the D-Region

    Friedrich, M. / Torkar, K. M. / International Council of Scientific Unions; Committee on Space Research; Scientific Commission C | British Library Conference Proceedings | 1998

    Common Features of Plasma Density Profiles During NLC

    Friedrich, M. / Torkar, K. M. / Thrane, E. V. et al. | British Library Conference Proceedings | 1994

    Characteristic Vertical Wavenumbers for the Polar Mesosphere

    Hall, C. / Hoppe, U.-P. / European Space Agency; Programme Advisory Committee on the Special Project concerning the Launching of Sounding Rockets | British Library Conference Proceedings | 1997

    Bonus Results from Ion Probes

    Friedrich, M. / Torkar, K. / Robertson, S. et al. | TIBKAT | 2013

      Bonus Results from Ion Probes

      Friedrich, M. / Torkar, K. / Robertson, S. et al. | British Library Conference Proceedings | 2013

    Atomic Oxygen in the Mesosphere and its Relevance for the Ionosphere: A Summary of Empirical Evidence

    Friedrich, M. / Gumbel, J. / Pilgram, R. et al. | British Library Conference Proceedings | 1999