Computer Science – Numerical Analysis
Scientific paper
Nov 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994georl..21.2603w&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 21, no. 23, p. 2603-2606
Computer Science
Numerical Analysis
12
Advection, Air Masses, Air Pollution, Air Sampling, Atmospheric Chemistry, Atmospheric Circulation, Atmospheric Conductivity, Polar Regions, Pollution Monitoring, Tropical Regions, Air Jets, Dc 8 Aircraft, Earth Resources, Jet Flow, Numerical Analysis, Trace Contaminants
Scientific paper
The poleward transport of tropical air in the lower stratosphere during the winter period of the second Airborne Arctic Stratospheric Expedition (AASE 2) (December 1991-March 1992) is examined using contour advection calcutions. These calculations show that filaments of tropical air extend into mid-latitudes, and are wrapped around the equatorward edge of the polar jet. Simultaneously filaments are drawn from the polar vortex and are intermingled with the filaments of tropical air. The tropical filaments are consistent with measurements of chemical tracers taken aboard the ER-2 and DC-8 aircraft which show localized regions, in mid-latitudes, of air with the characteristics of tropical air.
Chan Roland K.
Elkins James W.
Lait Leslie R.
Loewenstein Michael
Newman Paul A.
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