2D photochemical modeling of Saturn’s stratosphere. Part II: Feedback between composition and temperature
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Negative windshear dominates poleward of 78°N and p < 1 mbar throughout the time series, because temperatures have always increased towards 90°N despite the sequence starting in polar winter, counter to the expectations of radiative climate models.
“Negative windshear dominates poleward of 78°N and p < 1 mbar throughout the time series, because temperatures have always increased towards 90°N despite the sequence starting in polar winter, counter to the expectations of radiative climate models12,13,40.”
From A hexagon in Saturn's northern stratosphere surrounding the emerging summertime polar vortex (2018) · cites this paper as [40]
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Experimental — accuracy not yet measuredEthane is enhanced in the 0.5-5 mbar range compared to photochemical model expectations for both poles and exhibits a somewhat shallower vertical gradient than predicted.
“Ethane is enhanced in the 0.5–5 mbar range compared to the expectations of photochemical models19,40,42 for both poles and exhibits a somewhat shallower vertical gradient than predicted.”
From A hexagon in Saturn's northern stratosphere surrounding the emerging summertime polar vortex (2018) · cites this paper as [40]
Section 3.2 (p. 10) reports that modeled ethane is underpredicted relative to Cassini observations at 1 mbar, reaching a factor of four at ±80°, which supports enhancement near both poles at that pressure. It does not establish enhancement throughout 0.5–5 mbar or an observed vertical gradient shallower than predicted. (LLM, conf=0.87)
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Cites
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“Latitudes below ± 20◦ were not accounted for in order to remove the effects from SSAO on the observed temperatures.”
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“1: Comparison between the meridional gradients of temperature at 2.1mbar of Fig. 7. The gradients are given for the initial thermal field, the converged thermal field and the Cassini/CIRS observations (Fletcher et al., 2015a,b). Because of the thermal inertia at this pressure level, these effects are still observed in 20…”
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Flagged first, then by citations
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Cited by
Sorted by citations
A hexagon in Saturn's northern stratosphere surrounding the emerging summertime polar vortex
Fletcher, L. N., Orton, G. S., Sinclair, J. A., Guerlet, S., Read, P. L., Antuñano, A., Achterberg, R. K., Flasar, F. M., Irwin, P. G. J., Bjoraker, G. L., et al. (2018) · Nature Communications · doi:10.1038/s41467-018-06017-3 · Cited by 52 · see citing works
- Authors
- Hue, V., Greathouse, T. K., Cavalié, T., Dobrijevic, M., & Hersant, F.
- Affiliations
- Southwest Research Institute (US)
- Centre National de la Recherche Scientifique (FR)
- Corresponding author
- Hue, V.
- Venue
- Icarus
- Publisher
- Elsevier BV
- Published
- 2016-03
- Volume
- 267
- Pages
- 334-343
- ISSN
- 0019-1035 (ISSN-L)
- OpenAlex
- W2190718165
- Cited by
- 21
- References
- 35
- Citations by year
- 2024: 5 · 2023: 2 · 2022: 3 · 2021: 1 · 2020: 4 · 2019: 2 · 2018: 4
- FWCI
- 0.76
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Icarus (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- HAL (submittedVersion)
- Oskar-Bordeaux (Universite de Bordeaux) (submittedVersion)
- MPG.PuRe (Max Planck Society) (submittedVersion)
- arXiv (Cornell University)
- Funders
- Agence Nationale de la Recherche (ANR-10-IDEX-03-02)
- NASA PATM (NNX13AHIG)
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astro and Planetary Science
- Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Atmospheric Ozone and Climate
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Ionosphere and magnetosphere dynamics
- Keywords
- photochemical modeling, seasonal temperature variation, obliquity, equator-to-pole temperature gradient, meridional temperature gradient, solar irradiation, Cassini observations, gas giant atmospheres
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