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Energy dissipation of possible Titan lightning strokes by G. Fischer; T. Tokano; W. Macher; H. Lammer; H.O. Rucker is a scholarly article available to read on EtoBox.

What is Energy dissipation of possible Titan lightning strokes about?

The search for lightning on Saturn's satellite Titan is one scientiÿc target of the Cassini/Huygens mission. Although Voyager 1 did not detect any radio emissions caused by Titan lightning during its yby in November 1980, one cannot generally rule out their existence, because of low ash rates or ionospheric radiation blockade. Recently, Tokano et al. (Planet. Space Sci. 49 (2001a) 539) have developed a thundercloud model in Titan's troposphere favoring the existence of Titan lightning due to negatively charged clouds causing temporary electric ÿelds su cient to initiate cloud-to-ground lightning strokes. In the present investigation we estimate the amount of energy dissipation of such lightning strokes by electrostatic energy considerations similarly to those by Cooray (J. Geophys. Res. 102(D17) (1997) 21,401). The analysis is based on the cloud charge distribution given by Tokano et al. (2001a), which has a monopole structure or a dipole structure depending on the electriÿcation mechanism. It consists of horizontally homogenous charge layers, whose charge densities depend on the altitude above ground. As results we get the typical charge lowered in a possible Titan lightning strok

Author

G. Fischer; T. Tokano; W. Macher; H. Lammer; H.O. Rucker

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0032-0633)

Published

2004

Language

EN