Journal
SCIENCE
Volume 319, Issue 5859, Pages 79-81Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1149514
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- Science and Technology Facilities Council [ST/F007957/1, PP/D000866/1] Funding Source: researchfish
- STFC [ST/F007957/1, PP/D000866/1] Funding Source: UKRI
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Saturn's poles exhibit an unexpected symmetry in hot, cyclonic polar vortices, despite huge seasonal differences in solar flux. The cores of both vortices are depleted in phosphine gas, probably resulting from subsidence of air into the troposphere. The warm cores are present throughout the upper troposphere and stratosphere at both poles. The thermal structure associated with the marked hexagonal polar jet at 77 degrees N has been observed for the first time. Both the warm cyclonic belt at 79 degrees N and the cold anticyclonic zone at 75 degrees N exhibit the hexagonal structure.
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