Transient response of severe thunderstorm forcing to elevated greenhouse gas concentrations

Robert J. Trapp, Noah S. Diffenbaugh, Alexander Gluhovsky

Research output: Contribution to journalArticlepeer-review


We investigate the transient response of severethunderstorm forcing to the time-varying greenhouse gas concentrations associated with the AlB emissions scenario. Using a five-member ensemble of global climate model experiments, we find a positive trend in such forcing within the United States, over the period 1950-2099. The rate of increase varies by geographic region, depending on (i) low-level water vapor availability and transport, and (ii) the frequency of synoptic-scale cyclones during the warm season. Our results indicate that deceleration of the greenhouse gas emissions trajectory would likely result in slower increases in severe thunderstorm forcing.

Original languageEnglish (US)
Article numberL01703
JournalGeophysical Research Letters
Issue number1
StatePublished - Jan 16 2009
Externally publishedYes

ASJC Scopus subject areas

  • Geophysics
  • General Earth and Planetary Sciences


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