Small lightning flashes from shallow electrical storms on Jupiter

  title={Small lightning flashes from shallow electrical storms on Jupiter},
  author={Heidi N. Becker and James W. Alexander and Sushil K. Atreya and Scott J. Bolton and Martin J. Brennan and Shannon T. Brown and Alexandre Guillaume and Tristan Guillot and Andrew P. Ingersoll and Steven M. Levin and Jonathan I. Lunine and Yury S. Aglyamov and Paul G. Steffes},
  pages={55 - 58}
Lightning flashes have been observed by a number of missions that visited or flew by Jupiter over the past several decades. Imagery led to a flash rate estimate of about 4 × 10−3 flashes per square kilometre per year (refs. 1,2). The spatial extent of Voyager flashes was estimated to be about 30 kilometres (half-width at half-maximum intensity, HWHM), but the camera was unlikely to have detected the dim outer edges of the flashes, given its weak response to the brightest spectral line of Jovian… 
Possible Transient Luminous Events Observed in Jupiter's Upper Atmosphere
Eleven transient bright flashes were detected in Jupiter's atmosphere using the ultraviolet spectrograph instrument on the Juno spacecraft. These bright flashes are only observed in a single spin of
Microwave observations reveal the deep extent and structure of Jupiter’s atmospheric vortices
Observations of atmospheric vortices using the Juno spacecraft's Microwave Radiometer found vortex roots that extend deeper than the altitude at which water and ammonia are expected to condense, and the results constrain how Jupiter’s meteorology links to its deep interior.
Lightning Generation in Moist Convective Clouds and Constraints on the Water Abundance in Jupiter
Recent Juno observations have greatly extended the temporal and spatial coverage of lightning detection on Jupiter. We use these data to constrain a model of moist convection and lightning generation
Moist convection drives an upscale energy transfer at Jovian high latitudes
Jupiter’s atmosphere is one of the most turbulent places in the solar system. Whereas observations of lightning and thunderstorms point to moist convection as a small-scale energy source for
Storms and the Depletion of Ammonia in Jupiter: I. Microphysics of “Mushballs”
Microwave observations by the Juno spacecraft have shown that, contrary to expectations, the concentration of ammonia is still variable down to pressures of tens of bars in Jupiter. We show that
Storms and the Depletion of Ammonia in Jupiter: II. Explaining the Juno Observations
Observations of Jupiter's deep atmosphere by the Juno spacecraft have revealed several puzzling facts: The concentration of ammonia is variable down to pressures of tens of bars and is strongly
Jupiter's Temperate Belt/Zone Contrasts Revealed at Depth by Juno Microwave Observations
Juno microwave radiometer (MWR) observations of Jupiter's midlatitudes reveal a strong correlation between brightness temperature contrasts and zonal winds, confirming that the banded structure
Transport Characteristics of the Electrification and Lightning of the Gas Mixture Representing the Atmospheres of the Solar System Planets
Electrification represents a fundamental process in planetary atmospheres, widespread in the Solar System. The atmospheres of the terrestrial planets (Venus, Earth, and Mars) range from thin to thick
The charge of the spheres
  • K. Aplin
  • Environmental Science
    Astronomy & Geophysics
  • 2022
Karen Aplin received the 2021 James Dungey Lecture for her contributions to planetary atmospheric electricity. Here she briefly summarizes this research area, focusing on the scientific background


Galileo Images of Lightning on Jupiter
In October and November of 1997 the Galileo Solid State Imager (SSI) detected lightning from 26 storms on the night side of Jupiter. More than half the surface area of the planet was surveyed. The
Prevalent lightning sferics at 600 megahertz near Jupiter’s poles
Observations of broadband emission from lightning on Jupiter at 600 megahertz show a lightning discharge mechanism similar to that of terrestrial lightning and indicate increased moist convection near Jupiter’s poles.
Monte Carlo Radiative Transfer Modeling of Lightning Observed in Galileo Images of Jupiter
We study lightning on Jupiter and the clouds illuminated by the lightning using images taken by the Galileo orbiter. The Galileo images have a resolution of ∼25 km/pixel and are able to resolve the
Lightning in the Jovian water cloud
Voyager images of Jupiter show numerous luminous spots on the nightside. These spots have been attributed to lightning superbolts because of their extreme brightness and because of their transitory
Spectral Irradiance Measurements of Simulated Lightning in Planetary Atmospheres
Abstract Measurements of the spectral irradiance from approximately 380 to 820 nm are reported for laboratory simulations of lightning in the atmospheres of Venus, Jupiter, and Titan. The
Polar Lightning and Decadal-Scale Cloud Variability on Jupiter
Optical observations from the New Horizons spacecraft have identified lightning at high latitudes above Jupiter up to 80°N and 74°S, demonstrating that vertical dynamical processes are time-varying on seasonal scales at mid- and low latitudes on Jupiter.
Lightning initiation in the anvils of two supercell storms
Previous studies of lightning in anvil clouds have reported that flashes began in or near the storm core and propagated downwind into the anvil. It had been thought that flashes could not be