Modeling global lightning distributions in a general circulation model
Journal Article
·
· Monthly Weather Review
- NASA, Goddard for Space Studies, New York, NY (United States)
A general circulation model (GCM) is used to model global lightning distributions and frequencies. Both total and cloud-to-ground lightning frequencies are modeled using parameterizations that relate the depth of convective clouds to lightning frequencies. The model`s simulations of lightning distributions in time and space show good agreement with available observations. The model`s annual mean climatology shows a global lightning frequency of 77 flashes per second, with cloud-to-ground lightning making up 25% of the total. The maximum lightning activity in the GCM occurs during the Northern Hemisphere summer, with approximately 91% of all lightning occurring over continental and coastal regions.
- Research Organization:
- National Aeronautics and Space Administration, New York, NY (United States). Goddard Inst. for Space Studies
- OSTI ID:
- 53397
- Journal Information:
- Monthly Weather Review, Journal Name: Monthly Weather Review Journal Issue: 8 Vol. 122; ISSN MWREAB; ISSN 0027-0644
- Country of Publication:
- United States
- Language:
- English
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