Rapid descent of mesospheric air into the stratospheric polar vortex
Journal Article
·
· Geophysical Research Letters (American Geophysical Union); (United States)
This paper describes simulations carried out to calculate the Lagrangian trajectories of greater than 40,000 air parcels in the middle atmospheric region of the southern polar vortex. The purpose was to see if model calculations would support recent observations which indicate that there is rapid vertical transport of air masses downward from the mesosphere into the stratospheric polar vortex. This conclusion was drawn from looking at the spatial distribution of long lived trace gases such as methane in the middle atmosphere. Looking at the Lagrangian fields provides a graphic picture of any mass motion, and does so in a fairly averaged manner.
- OSTI ID:
- 6064612
- Journal Information:
- Geophysical Research Letters (American Geophysical Union); (United States), Vol. 20:12; ISSN 0094-8276
- Country of Publication:
- United States
- Language:
- English
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