Radiated VLF energy differences of land and oceanic lightning
Article first published online: 30 MAY 2013
©2013. American Geophysical Union. All Rights Reserved.
Geophysical Research Letters
Volume 40, Issue 10, pages 2390–2394, 28 May 2013
How to Cite
2013), Radiated VLF energy differences of land and oceanic lightning, Geophys. Res. Lett., 40, 2390–2394, doi:10.1002/grl.50406., , , , and (
- Issue published online: 1 JUL 2013
- Article first published online: 30 MAY 2013
- Accepted manuscript online: 27 MAR 2013 12:00AM EST
- Manuscript Accepted: 22 MAR 2013
- Manuscript Received: 1 MAR 2013
 A global contrast between oceanic and continental lightning very low frequency energy is observed using the World Wide Lightning Location Network (WWLLN). Strokes over the ocean are found to be stronger on average than those over land with a sharp boundary along a majority of coastlines. A linear regression method is developed to account for the spatial and temporal variation of WWLLN in order to perform a multiyear and global analysis of stroke energy distributions. The results are corroborated with data from the Lightning Imaging Sensor, the Optical Transient Detector, and the Earth Networks Total Lightning Network. These systematic comparisons lead to the conclusion that there exists a strong difference in the energetics between land and ocean thunderstorms that results in a higher fraction of more powerful strokes over the oceans.