Saturn lightning recorded by Cassini/RPWS in 2004

Fischer, G.; Desch, M. D.; Zarka, Philippe; Kaiser, M. L.; Gurnett, D. A.; Kŭrth, W. S.; Macher, W.; Rücker, H. O.; Lecacheux, A.; Farrell, W. M.

doi:10.1016/j.icarus.2006.02.010

Cited by 62 publications

(86 citation statements)

References 28 publications

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“…The dragon storm is one of only a few convective features detected in the ISS MT2 filter, indicating that it is deeper than other convective storms. Interestingly, this feature is associated with short high frequency (1-15 MHz) radio emission outbursts (of typical duration 49 ms) known as "Saturn Electrostatic Discharges" (SEDs) (Porco et al 2005;Fischer et al 2006Fischer et al , 2007. There is a consensus that SED episodes are due to lightning originating within the storm clouds, in agreement with previous Voyager findings at low latitudes (Kaiser et al 1983).…”

Section: Convective Clouds and Lightningsupporting

confidence: 81%

Saturn Atmospheric Structure and Dynamics

Genio

Achterberg

Baines

et al. 2009

Saturn From Cassini-Huygens

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Section: Convective Clouds and Lightningsupporting

confidence: 81%

Saturn Atmospheric Structure and Dynamics

Genio

Achterberg

Baines

et al. 2009

Saturn From Cassini-Huygens

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“…This is a factor of 10 4 stronger than terrestrial flashes, which makes SEDs detectable from great distances. With RPWS SEDs were first detected far beyond 300 Saturn radii (Fischer et al 2006a). This corresponds to a staggering distance of about 3000 Earth radii compared to only 14 Earth radii, within which RPWS detected terrestrial lightning during its Earth flyby (Gurnett et al 2001).…”

Section: Sed Intensity and Frequency Spectrummentioning

confidence: 97%

“…The SED storms after Cassini SOI (Saturn Orbit Insertion, DOY 183, 2004) were labeled A, B, and C by Gurnett et al (2005). A smaller storm happening before SOI was labeled storm 0 (zero) by Fischer et al (2006a). Only one storm occurred in 2005 (storm D), and early 2006 RPWS observed the SEDs of the big storm E (Fischer et al 2007a).…”

Section: Occurrence Rate Of Saturn Electrostatic Dischargesmentioning

confidence: 99%

Atmospheric Electricity at Saturn

et al. 2008

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The Cassini mission provides a great opportunity to enlarge our knowledge of atmospheric electricity at the gas giant Saturn. Following Voyager studies, the RPWS (Radio and Plasma Wave Science) instrument has measured again the so-called SEDs (Saturn Electrostatic Discharges) which are the radio signature of lightning flashes. Observations by Cassini/ISS (Imaging Science Subsystem) have shown cloud features in Saturn's atmosphere whose occurrence, longitudinal drift rate, and brightness were strongly related to the SEDs.In this paper we will review the main physical parameters of the SEDs. Lightning does not only give us clues about the dynamics of the atmosphere, but also serves as a natural tool to investigate properties of Saturn's ionosphere. We will also discuss other lightning related phenomena and compare Saturn lightning with terrestrial and Jovian lightning.

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“…At low latitudes above the homopause, a surge in water inflow may also contribute to the presence of 'bite-outs' in the profiles observed at Saturn (Moore and Mendillo 2007). Impulsive radio bursts at Saturn, referred as Saturn Electrostatic Discharges (SEDs), have been detected by the two Voyagers (Warwick et al 1981(Warwick et al , 1982 and the Cassini/Radio and Plasma Wave Science (RPWS) instrument (Gurnett et al 2005;Fischer et al 2006Fischer et al , 2007. These discharges are produced by lightning occurring in convective-looking clouds at mid-latitudes (e.g.…”

Section: Ionospheric Response To Auroral Forcingmentioning

confidence: 99%