HR: 1400h
AN: SH23C-08    [Abstracts]
TI: CUNY Sun-Earth Research, Space Climate
AU: * Cotten, D E
EM: decotten@aol.com
AF: Queensborough Community College of the City University of New York, 222-05 56 Avenue, Bayside, NY 11364, United States
AU: * Cotten, D E
EM: decotten@aol.com
AF: Planning and Research Consulting Associates, 70 Shore Road, Bayville, NY 11709, United States
AU: Cheung, T D
EM: tcheung@qcc.cuny.edu
AF: Queensborough Community College of the City University of New York, 222-05 56 Avenue, Bayside, NY 11364, United States
AU: Marchese, P J
EM: pmarchese@qcc.cuny.edu
AF: Queensborough Community College of the City University of New York, 222-05 56 Avenue, Bayside, NY 11364, United States
AU: Johnson, L P
EM: leon.johnson@verizon.net
AF: Medgar Evers College of the City University of New York, 1650 Bedford Avenue, Brooklyn, NY 11225, United States
AU: Austin, S
EM: shermane.austin@gmail.com
AF: Medgar Evers College of the City University of New York, 1650 Bedford Avenue, Brooklyn, NY 11225, United States
AU: Tremberger, G
EM: gtremberger@qcc.cuny.edu
AF: Medgar Evers College of the City University of New York, 1650 Bedford Avenue, Brooklyn, NY 11225, United States
AB: Faculty and students at Queensborough Community College and Medgar Evers College of the City University of New York (CUNY) have, over several years now, employed simple software familiar to most undergraduate students to perform useful calculations, including statistical analyses, regarding various geophysical phenomena. Topics have included Space Weather, Interplanetary Magnetic Field (IMF) direction and strength fluctuations, geomagnetic and ionospheric responses to solar flares, and Coronal Mass Ejection (CME) events. Our statistical analyses have utilized second-order measures of fluctuation of the IMF strength, especially what we now call the Cheung number: the number of times that the value of Sigma-B, as provided by the ACE (Advanced Composition Explorer) data, has exceeded 0.5nT during a 6 hour interval. We have also utilized the Higuchi fractal dimension of various somewhat random fluctuations, including Sigma-B and the brightness or strength of adjacent pixels or data points in somewhat random data sequences in time or spatial dimension, including IMF fluctuations and SOHO (Solar Heliographic Observer) images of the Sun. These we have correlated with each other and with such variables as SEP (Solar Energetic Particle) peak flux, TEC (Total Electron Content) of the ionosphere, and Dst (Disturbance storm-time) in the geomagnetic field. Recent results indicate that the IMF fluctuation measures are well correlated with the SEP peak flux, the Dst, and TEC. Higuchi fractal analysis of SOHO photospheric ultraviolet brightness indicates, consistent with concomitant increased chaos or randomness of photospheric brightness, an increased likelihood of solar flare events or CME affecting interplanetary space and the earth's magnetosphere/ionosphere/atmosphere.
DE: 0520 Data analysis: algorithms and implementation
DE: 0810 Post-secondary education
DE: 2101 Coronal mass ejections (7513)
DE: 4440 Fractals and multifractals
DE: 7924 Forecasting (2722)
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2007 Joint Assembly