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Solar Sources of Large Geomagnetic Storms During Solar Cycle 23

Solar Sources of Large Geomagnetic Storms During Solar Cycle 23

Solar Sources of Large Geomagnetic Storms During Solar Cycle 23. Gopalswamy (NASA/GSFC) Michalek, H. Xie, S. Yashiro (CUA) R. A. Howard (NRL). Objective.

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415 views • 27 slides
WG3: Extreme Events Summary

WG3: Extreme Events Summary

WG3: Extreme Events Summary. N. Gopalswamy & A. Vourlidas. WG3 Questions. What can the extreme events tell us about the maximum free energy available in the source region? How can we distinguish between CME and flare onsets?

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400 views • 24 slides
CME-driven Shocks in White Light Observations

CME-driven Shocks in White Light Observations

CME-driven Shocks in White Light Observations. We demonstrate that CME-driven shocks: (1) can be detected in white light coronagraph images. (2) can have some of their properties measured (i.e., shock strength). (3) their propagation direction can be deduced via simple modeling.

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336 views • 20 slides
Energy partition during initial stages of the CME

Energy partition during initial stages of the CME

Energy partition during initial stages of the CME. Jiong Qiu Physics Department, Montana State University. Outline:. Outstanding issues Recent progress Difficulties. Outstanding issues on energy:. energy storage: is there enough energy? how is this energy stored?

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285 views • 15 slides
High-Energy Ground Level Events Measured with Neutron Monitors and the Milagro Instrument

High-Energy Ground Level Events Measured with Neutron Monitors and the Milagro Instrument

High-Energy Ground Level Events Measured with Neutron Monitors and the Milagro Instrument. James M. Ryan University of New Hampshire and the Milagro Collaboration. The Network. Northeast US Mount Washington IGY; P c = 1.68 GV; 2028 m Durham NM64; P c = 1.88 GV; sea level

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143 views • 14 slides
What can helicity redistribution in solar eruptions tell us about reconnection in these events?

What can helicity redistribution in solar eruptions tell us about reconnection in these events?

What can helicity redistribution in solar eruptions tell us about reconnection in these events?. Image by Pevtsov & Groening 2010. by Brian Welsch, JSPS Fellow (Short-Term ), Space Sciences Lab, UC - Berkeley, Non- Expert on Reconnection.

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243 views • 13 slides

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