ELECTRIC FIELD AND PLASMA DENSITY OBSERVATIONS OF LARGE SCALE (100’S OF KM) WAVES BELOW THE EQUATORIAL F-PEAK AS SEEDS OF SPREAD-F| Session Chair: | Meers Oppenheim |
Plasma density irregularities in the ionosphere affect radiowave propagation and interfere with Earth-space communication such as GPS. Progress in measuring, modeling, and understanding the evolution of ionospheric E- and F-region plasma structures and irregularities encompassing scales ranging from meters to hundreds of kilometers will be the main focus of this session. Phenomena of interest include F-region equatorial plasma bubbles, mid-latitude E and F region irregularities and SAPS, storm time enhancement of mid and high latitude irregularities, incomplete/unsolved problems of 150 km irregularities and non-linear behavior of Farley-Buneman and gradient-drift waves and turbulence.
13:40 GH01.1 ELECTRIC FIELD AND PLASMA DENSITY OBSERVATIONS OF LARGE SCALE (100’S OF KM) WAVES BELOW THE EQUATORIAL F-PEAK AS SEEDS OF SPREAD-F
R. F. Pfaff
NASA/Goddard Space Flight Center, Greenbelt, MD, United States
14:00 GH01.2 DATA-DRIVEN NUMERICAL SIMULATIONS AND FORECASTS OF EQUATORIAL SPREAD F
D. L. Hysell1, M. A. Milla2
1Earth and Atmospheric Sciences, Cornell University, Ithaca, NY, United States
2Jicamarca Radio Observatory, Lima, Peru
14:20 GH01.3 150-KM ECHOES: EXISTENCE OF TWO DISTINCT TYPES OF EQUATORIAL ECHOES AND THE INFLUENCE OF SOLAR RADIATION
J. L. Chau1, E. Kudeki2, P. M. Reyes2
1Leibniz Institute of Atmospheric Physics at the Rostock University, Kühlungsborn, Germany
2Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana-Champaign, USA
14:40 GH01.4 EFFECT OF SPATIAL SCALE ON ESTIMATION OF SPATIAL STRUCTURE OF SPORADIC E LAYER WITH 2-DIMENSIONAL FDTD SIMULATIONS
T. Miyake, H. Inoue, T. Okada, K. Ishisaka
Toyama Prefectural University, Toyama, Japan
15:00 GH01.5 INITIAL OBSERVATIONS OF PLASMA WAVES IN THE SUB-AURORAL POLARIZATION STREAM WITH THE VAN ALLEN PROBES
J. C. Foster, P. J. Erickson
MIT Haystack Observatory, Westford, MA, United States
15:20 GH01.6 AN EXAMINATION OF THE SOURCE OF DECAMETER-SCALE IRREGULARITIES IN THE GEOMAGNETICALLY DISTURBED MID-LATITUDE IONOSPHERE
E. G. Thomas1, J. B. H. Baker1, J. M. Ruohoniemi1, J. Yan2, J. Zhang2, K. Hosokawa3, P. J. Erickson4, A. J. Coster4, J. C. Foster4
1Bradley Dept. of Electrical and Computer Engineering, Virginia Tech, Blacksburg, VA, United States
2National Space Science Center, Chinese Academy of Sciences, Beijing, China
3Department of Communication and Engineering Informatics, University of Electro-Communications, Chofu, Tokyo, Japan
4Atmospheric Sciences Group, MIT Haystack Observatory, Westford, MA, United States