Climatological diurnal variation of negative CG lightning peak current over the continental United States

T. Chronis, K. Cummins, R. Said, W. Koshak, E. McCaul, E. R. Williams, G. T. Stano, M. Grant

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

This study provides an 11 year climatology of the diurnal variability of the cloud-to-ground (CG) lightning peak current. The local diurnal variation of peak current for negative polarity CG (-CG) flashes exhibits a highly consistent behavior, with increasing magnitudes between the late night to early morning hours and decreasing magnitudes during the afternoon. Over most regions, an inverse relationship exists between the -CG peak current and the corresponding-CG activity, although specific details can depend on region and time of day. Overall, the diurnal variation of the -CG peak current appears to reflect fundamental differences between morning and afternoon storms, but additional studies are required to clearly identify the primary cause(s).

Original languageEnglish (US)
Pages (from-to)582-589
Number of pages8
JournalJournal of geophysical research
Volume120
Issue number2
DOIs
StatePublished - Jan 27 2015

ASJC Scopus subject areas

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

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