Journal cover Journal topic
Annales Geophysicae An open-access journal of the European Geosciences Union
Ann. Geophys., 20, 133-137, 2002
http://www.ann-geophys.net/20/133/2002/
doi:10.5194/angeo-20-133-2002
© Author(s) 2002. This work is distributed
under the Creative Commons Attribution 3.0 License.
 
31 Jan 2002
Letter to the Editor
Intense oceanic lightning
M. Füllekrug1, C. Price1, Y. Yair2, and E. R. Williams3 1Department of Geophysics and Planetary Sciences, Tel Aviv University, Tel Aviv, Israel
2Department of Natural and Life Sciences, The Open University, Tel Aviv, Israel
3Parsons Laboratory, Massachusetts Institute of Technology, Cambridge, MA, USA
Correspondence to: M. Füllekrug
(fuellekr@geophysik.uni-frankfurt.de)
Abstract. The electrodynamic properties of intense oceanic lightning discharges are compared to intense continental lightning discharges. Particularly intense negative lightning discharges with absolute charge moments  > 2 kC · km occur more often over the oceans than over the continents during April 1998. Intense continental lightning discharges, with negative and positive polarity, and intense positive oceanic lightning discharges primarily occur associated with mesoscale convection in the late evening. The number of intense negative oceanic lightning discharges increases in the early morning hours, probably associated with the resurgence of oceanic mesoscale convection in coastal areas. The day-to-day variability of intense negative oceanic lightning discharges exhibits a five day periodicity, possibly related to planetary waves.

Key words. Meteorology and atmospheric dynamics (lightning; ocean-atmosphere interactions) – Oceanography - general (marine meteorology)


Citation: Füllekrug, M., Price, C., Yair, Y., and Williams, E. R.: Letter to the Editor
Intense oceanic lightning, Ann. Geophys., 20, 133-137, doi:10.5194/angeo-20-133-2002, 2002.
Publications Copernicus
Download
Share