Made in Millersville 2021 has ended

Please create an account and login to view videos and join live conference sessions.

Back To Schedule
Tuesday, April 13 • 10:50am - 12:05pm
Investigation of Correlation between Solar Activity and Total Lightning Count

Sign up or log in to save this to your schedule, view media, leave feedback and see who's attending!

Feedback form is now closed.
This investigation builds on earlier works that suggest possible links between cosmic ray (Scott, et al.,
2014; Chronis, 2008; Harrison and Usoskin, 2010). Cosmic ray intensity increases during solar minima
when the heliospheric protection is weak. At the same time, during periods of solar maxima ionization
rates increase, and induced currents and electric fields strengthen. How each of these variations in solar
activity affect lightning counts is not well understood. The correlation between lightning and solar
activity will be investigated over a solar maxima and minima centered at the years of 2000-2005 (Solar
Max) and 2006-2011 (Solar Min). Daily counts of cloud-to-ground (CG) lightning strokes obtained from
the Vaisala’s ground lighting detection system will be statistically analyzed for correlation with sunspot
numbers (Index), using the latter as a proxy indicator of solar activity. The Sunspot data will be
downloaded from the World Data Center Sunspot Index and Long-term Solar Observations (WDC-SILSO)
web site. The study will examine differences in lightning counts between solar maxima and minima over
a 700,000 km2 area covering the north-central plains of the U.S. The area is selected because of its
northern location closer to the north geomagnetic pole and in proximity to solar storms, and because
thunderstorm climatology predicts 40-50 thunderstorm-days per year, greater than any other northern
U.S. latitude.


Samuel Reams

Meteorology (BS)

Tuesday April 13, 2021 10:50am - 12:05pm EDT
Live Zoom Presentation

Attendees (2)