# Meridional Variations of C 2 H 2 in Jupiter's Stratosphere From Juno UVS Observations

@inproceedings{Giles2021MeridionalVO,
title={Meridional Variations of C
2
H
2
in Jupiter's Stratosphere From Juno UVS Observations},
author={Rohini S. Giles and Thomas K. Greathouse and Vincent Hue and G. Randall Gladstone and Henrik Melin and Leigh N. Fletcher and Patrick G. J. Irwin and Joshua A. Kammer and Maarten H. Versteeg and Bertrand Bonfond and Denis C. Grodent and Scott J. Bolton and Steven M. Levin},
year={2021}
}
The UVS instrument on the Juno mission records far-ultraviolet reflected sunlight from Jupiter. These spectra are sensitive to the abundances of chemical species in the upper atmosphere and to the distribution of the stratospheric haze layer. We combine observations from the first 30 perijoves of the mission in order to study the meridional distribution of acetylene (C2H2) in Jupiter’s stratosphere. We find that the abundance of C2H2 decreases towards the poles by a factor of 2–4, in agreement… Expand

#### References

SHOWING 1-10 OF 48 REFERENCES
Jupiter in the Ultraviolet: Acetylene and Ethane Abundances in the Stratosphere of Jupiter from Cassini Observations between 0.15 and 0.19 μm
• Materials Science, Physics
• 2020
At wavelengths between 0.15 and 0.19 $\mu$m, the far-ultraviolet spectrum of Jupiter is dominated by the scattered solar spectrum, attenuated by molecular absorptions primarily by acetylene andExpand
Photochemistry, mixing and transport in Jupiter’s stratosphere constrained by Cassini
• Physics
• 2015
Abstract In this work, we aim at constraining the diffusive and advective transport processes in Jupiter’s stratosphere, using Cassini/CIRS observations published by Nixon et al. (2007,2010). TheExpand
Jupiter’s auroral-related stratospheric heating and chemistry I: Analysis of Voyager-IRIS and Cassini-CIRS spectra
Abstract Auroral processes are evident in Jupiter’s polar atmosphere over a large range in wavelength (X-ray to radio). In particular, previous observations in the mid-infrared (5–15 µm) have shownExpand
Meridional Variations of C2H2 and C2H6 in Jupiter's Atmosphere from Cassini CIRS Infrared Spectra
Hydrocarbons such as acetylene (C2H2) and ethane (C2H6) are important tracers in Jupiter’s atmosphere, constraining our models of the chemical and dynamical processes. However, our knowledge of theExpand
Jupiter’s auroral-related stratospheric heating and chemistry II: analysis of IRTF-TEXES spectra measured in December 2014
Abstract We present a retrieval analysis of TEXES (Texas Echelon Cross Echelle Spectrograph (Lacy et al., 2002)) spectra of Jupiter’s high latitudes obtained on NASA’s Infrared Telescope Facility onExpand
Mid-infrared mapping of Jupiter’s temperatures, aerosol opacity and chemical distributions with IRTF/TEXES
Abstract Global maps of Jupiter’s atmospheric temperatures, gaseous composition and aerosol opacity are derived from a programme of 5–20 µm mid-infrared spectroscopic observations using the TexasExpand
On the HCN and CO2 abundance and distribution in Jupiter's stratosphere
• Physics
• 2006
Abstract Observations of Jupiter by Cassini/CIRS, acquired during the December 2000 flyby, provide the latitudinal distribution of HCN and CO 2 in Jupiter's stratosphere with unprecedented spatialExpand
Stratospheric Ammonia on Jupiter after the SL9 Collision
Abstract We report results from measurements of NH 3 emission lines from the stratosphere of Jupiter following the impacts of fragments of Comet P/Shoemaker–Levy 9. Measurements were taken at theExpand
Jupiter's auroral-related stratospheric heating and chemistry III: Abundances of C2H4, CH3C2H, C4H2 and C6H6 from Voyager-IRIS and Cassini-CIRS
Abstract We present an analysis of Voyager-1-IRIS and Cassini-CIRS spectra of Jupiter's high latitudes acquired during the spacecrafts' respective flybys in November 1979 and January 2001. WeExpand
Infrared polar brightening on Jupiter. III - Spectrometry from the Voyager 1 IRIS experiment
• Physics
• 1985
Spectra from the Voyager 1 IRIS experiment confirm the existence of enhanced infrared emission near Jupiter's north magnetic pole in March 1979. The spectral characteristics of the enhanced emissionExpand