Objective Stratospheric profiles of many molecules will be simultaneously determined in balloon flights at mid latitudes over France and in Northern Scandinavia by a consortium of laboratories in the UK, Germany and France with theoretical interpretation of the data assisted by modelling activities in Norway. Three flight will be made in the winter 1993-94 in Scandinavia and the third in the summer of 1994 over France.A cryogenic air sampler, operated by KFA Jülich will be flown in all three flights and the Fourier Transform Spectrometer operated by LPMA Paris will be flown only in the 1994 summer flight. This latter reduction, from two flights (one of which was to be made in Scandinavia) to one flight, has been caused by the destruction of the original LPMA spectrometer in the EASOE Campaign.The specific tasks of this proposal are thus:- To collect simultaneous data on the vertical profiles at mid latitudes and in the Arctic of a large range of CFCs and other halocarbons: CFC-11, CFC-12, CFC-13, CFC-14, CFC-113, CFC-114, CFC114a, CFC-115, CFC-116, HCFC-22, HCFC-142b, CH3 CC13, CH3Cl, CH3Br, H-12B1, H-13B1 and H-24B2.- To collect simultaneous information on other stratospheric source gases at the same location: (CH4, N2O, H2, etc).- To measure the CO2 content of the air samples.- To determine the HCl concentration of the stratosphere coincidentally with the total chlorine source gases concentration.- To use the data in combination with a two-dimensional model of stratospheric chemistry to determine the atmospheric lifetimes of many molecules and the relative effects on stratospheric ozone depletion of CFCs and HCFCs. Fields of science natural sciencesearth and related environmental sciencesatmospheric sciencesnatural scienceschemical sciencesorganic chemistryhydrocarbonsnatural sciencesearth and related environmental sciencesenvironmental sciencesozone depletionnatural scienceschemical sciencesinorganic chemistryhalogensnatural scienceschemical sciencesorganic chemistryorganohalogen compounds Programme(s) FP3-ENV 1C - Specific research and technological development programme (EEC) in the field of the environment, 1990-1994 Topic(s) Data not available Call for proposal Data not available Funding Scheme CSC - Cost-sharing contracts Coordinator UNIVERSITY OF EAST ANGLIA Address University plain Norwich United Kingdom See on map Links Website Opens in new window EU contribution € 0,00 Participants (3) Sort alphabetically Sort by EU Contribution Expand all Collapse all CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE France EU contribution € 0,00 Address Université de paris-sud 11 350 tour 13 case 76 75252 Paris See on map Forschungszentrum Jülich GmbH Germany EU contribution € 0,00 Address Wilhelm-johnen-straße 52405 Jülich See on map University of Oslo Norway EU contribution € 0,00 Address 0315 Oslo-blindern See on map
