Conference papers
INTRUSION OF RECENT AIR IN POLAR STRATOSPHERE DURING SUMMER 2009 REVEALED BY BALLOON-BORNE IN SITU CO MEASUREMENTS
Abstract : The SPIRALE (Spectroscopie Infa-Rouge par Absorption de Lasers Embarqués) balloon-borne instrument has been launched twice within 17 days in the polar region (Kiruna, Sweden, 67.9°N-21.1°E) during summer, at the beginning and at the end of August 2009. In situ measurements of several trace gases have been performed including CO and O 3 between 10 and 34 km height, with very high vertical resolution (~5 m). The both flight results are compared and the CO stratospheric profile of the first flight presents specific structures associated with mid-latitude intrusion in the lowest stratospheric levels. Their interpretation is made with the help of results from several modeling tools (MIMOSA and FLEXTRA) and available satellite data (IASI). We also used the O 3 profile correlated with CO to calculate the proportion of recent air in the polar stratosphere. The results indicate the impact of East Asia urban pollution on the chemistry of polar stratosphere in summer.
Cited literature [23 references]
https://hal-insu.archives-ouvertes.fr/insu-01323350
Contributor : Nathalie Pothier <>
Submitted on : Monday, May 30, 2016 - 2:06:40 PM
Last modification on : Thursday, July 16, 2020 - 9:30:28 AM
Document(s) archivé(s) le : Wednesday, August 31, 2016 - 10:39:09 AM
Contributor : Nathalie Pothier <>
Submitted on : Monday, May 30, 2016 - 2:06:40 PM
Last modification on : Thursday, July 16, 2020 - 9:30:28 AM
Document(s) archivé(s) le : Wednesday, August 31, 2016 - 10:39:09 AM
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