D: Global event energetics,
Brian Dennis ( 7)

Last Updated Fri Dec 5 16:24:42 2008

1: Brian Dennis (Brian.R.Dennis@nasa.gov), NASA Goddard Space Flight Center [D]
[soi] Group Leader
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2: Gordon Emslie (gordon.emslie@okstate.edu), OSU [E]
[soi] Help Brian run group D.
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3: Hugh Hudson (hhudson@ssl.berkeley.edu), SSL/UCB [C]
[soi] How to interpret the TSI variations. How to interpret the magnetic energy.
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4: Robert Lin (rlin@ssl.berkeley.edu), University of California, Berkeley [E]
[soi] I am interested in the role of particle acceleration in flares and CMEs, in particular, the energetics and physical processes.
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5: Richard Mewaldt (RMewaldt@srl.caltech.edu), Caltech [E]
[soi] I am interested in contributing to estimates of the global energetics of large solar events. I have fit spectra to the solar energetic particle fluences of >50 SEP events and compared the SEP and CME kinetic energies to more than 20 events.
[poster] How Efficient are CMEs at Accelerating Solar Energetic Particles? R. A. Mewaldt, C. M. S. Cohen, J. Giacalone, G. M. Mason, E. E. Chollet, D. K. Haggerty, M. D. Looper, and A. Vourlidas The largest solar energetic particle (SEP) events are thought to be due to particle acceleration at a shock driven by a fast coronal mass ejection (CME). We investigate the efficiency of this process by comparing the total energy content of energetic particles with the kinetic energy of the associated CMEs. The energy content of 23 large SEP events from 1998 through 2003 is estimated based on data from ACE, GOES, and SAMPEX, and interpreted using the results of new particle transport simulations and inferred longitude distributions. CME data for these events are obtained from SOHO. When compared to the estimated kinetic energy of the associated coronal mass ejections (CMEs), it is found that large SEP events can extract ~10% or more of the CME kinetic energy. The largest SEP events appear to require massive, very energetic CMEs.
6: Christopher Moore (yuungc@aol.com), LASP [E]
[soi] I will provide TSI and VUV (0.1-190 nm) radiative energies during x-class solar flares
[poster] The Total Solar Irradiance Monitor (TIM) from NASA’s Solar Radiation and Climate Experiment (SORCE) can detect changes in the Total Solar Irradiance (TSI) to a precision of 2 ppm, allowing for the first time observations of variations due to large X class solar flares.11 solar flares ranging from X1.2 to X28 classification were decomposed into their spectral energy contribution from the Vacuum Ultraviolet wavelengths to the TSI using the Flare Irradiance Spectral Model (FISM). With the use of the GOES X-Ray and the Neupert Effect [Neupert, 1969], the flares can also be broken down into impulsive and gradual phases. The data attained from this analysis can be used to model the TSI for the X class flares that occurred during eclipse periods.
7: Richard Schwartz (richard.schwartz@nasa.gov), gsfc [G]
[soi] improving the methodologies used to bound the power input derived from the RHESSI observations.
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Second Choice

Marina Battaglia, Amir Caspi, Brian Dennis, Haisheng Ji, Eduard Kontar, Kirill Kuzanyan, Satoshi Masuda, Ronald Murphy, Jaz Pearson, Pascal Saint-Hilaire, Albert Shih, Gerard Trottet, Brian Welsch, Meredith Wills-Davey,