2009 Workshop:SC 23
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Thermospheric and Ionospheric Effects of Solar Wind Shocks and Pressure Pulses during the Declining Phase of Solar Cycle 23
Zia, 1600-1800 hr, 01 July 2009
Conveners
Workshop Categories
Altitudes: IT - Latitudes: global - Inst/Model: modeling - Other:
Format of the Workshop
Short Presentations
Estimated attendance
25
Special technology requests
none
Description
During the declining phase of solar cycle 23, a number of new Ionosphere-Thermosphere (I-T) phenomena have been noted - high-speed streams in the solar wind leading to periodic fluctuations in the thermosphere, magnetic storms which have little, limited or unusual Dst signature, etc. This workshop solicits observational and modelling reports of the I-T system response to solar activity in the approach to solar minimum. We invite presentations and comparisons of the I-T response during the commencement, main and recovery storm phase. We are particularly interested in the role that traveling ionospheric and atmospheric disturbances play in storm time. For example are I-T disturbances more likely to develop if the magnetospheric storm is preceded by a solar wind shock?
Examples of other questions that may be fruitfully addressed are:
1) What is the role of northward and/or in-the-ecliptic components of the interplanetary magnetic field (IMF) on I-T disturbances?
2) What fraction of the energy deposition to the upper atmosphere is related to cusp region dynamics?
3) What are the roles and relative contributions of particles and Poynting flux deposition to the upper atmosphere?
4) How does localized, intense Poynting flux input affect the global thermosphere?
5) Can we offer better characterization of upper atmosphere energization than that provided by ground-based indices?
Please forward inquiries or brief presentations to Delores Knipp (knipp@ucar.edu) or Cheryl Huang (afrl.rvb.pa@hanscom.af.mil - please put convenor name in subject line).
Workshop Summary
This is where the final summary workshop report will be.
Presentation Resources
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Delores Knipp, Thermospheric Poynting Flux and Density Response to Shocked In-the-Ecliptic IMF
Kelly Ann Drake, Poynting Flux From the DMSP F-15 Satellite During September 2005
Loren Chang, MLT response to CIR's
Cheryl Huang, Thermospheric Cooling During Solar Minimum
