Profile observations of long-lived trace gases in the Arctic vortex

Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

36

Air Sampling, Arctic Regions, Atmospheric Composition, Life (Durability), Trace Contaminants, Vortices, Chlorocarbons, Fluorocarbons, Methane, Nitrous Oxides, Vertical Distribution

Scientific paper

Five sets of vertical profiles of long-lived trace gases were measured in the stratosphere at high northern latitudes (68 deg N) during three field campaigns of the CHEOPS - Project. Large whole air samples were collected by means of balloon-borne cryogenic samples analyzed for their content of N2O, CH4, CFCl3, CH2Cl2, C2F3Cl3, CCl4, CH3Cl and CH3CCl3. The measured polar profiles will be compared with mean vertical distributions derived from a series of observations at midlatitudes (44 deg N). The difference indicates a pronounced effect of subsidence in the Arctic winter stratosphere with a net downward shift of the Arctic vertical profile by about 7 km over the time period from November until February. Owing to this efficient downward transport, the abundance of chlorine in the form of reservoir and reactive species, is increased in the lower Arctic stratosphere to about twice that observed at mid-latitudes.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Profile observations of long-lived trace gases in the Arctic vortex does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Profile observations of long-lived trace gases in the Arctic vortex, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Profile observations of long-lived trace gases in the Arctic vortex will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1791531

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.