STEP programme: European Arctic Stratospheric Ozone Experiment (EASOE) Proposals are invited for contributions to a new measurement campaign (November 1991 - March 1992) related to polar stratospheric ozone depletion in the Arctic region. This call is limited to EASOE and does not concern other research areas within the STEP programme. Activities... Proposals are invited for contributions to a new measurement campaign (November 1991 - March 1992) related to polar stratospheric ozone depletion in the Arctic region. This call is limited to EASOE and does not concern other research areas within the STEP programme. Activities will be in line with the following scientific objectives: Detection of perturbed chemistry and any associated ozone loss; study of the spatial extent of disturbed chemistry; investigation at lower latitudes of transport of chemically perturbed air; investigation of dilution effects at lower latitudes. The measurement phase will be followed by a post-mission analysis phase.The EASOE planning document is obtained from: Commission of the European Communities, DG XII E-1 Attn. Dr. J. Busing 200 rue de la Loi, ARLN 5/24 B-1049 Brussels Fax +32-2-2363024
