Objective The proposed research aims in the first place at quantifying the hierarchy of UV-B modulating factors moving from startospheric ozone to tropospheric ozone and other environmental factors such as aerosol, clouds and air quality. This project builds on recent results from EU campaigns which have shown that southeastern Europe and particularly the Aegean sea, is experiencing enhanced background ozone up to the tropopause, with extreme gradients in the J(O1D) prevailing in the first 2 km above sea level in the region. Therefore the project in addition to quantifying with model results validated by calibrated observations the factors influencing UV transfer, it will next move on to unravel the mechanisms maintaining the high background ozone over Southeastern Europe and its interplay with UV transfer. 3-D model studies will be done in large regional and subregional scales to understand the extend of enhanced background ozone and its sources. The tropospheric effect on UV transfer is not as large as the absorption in the stratosphere but can be important due to photon path enhancements in the presence of different types of aerosols. This synergistic effect of the aerosol burden will be separately studied, being at present an open question. The above objectives of the project will be achieved through extensive state-of-the-art campaign measurements and modelling studies. The sites selected (islands of Crete and Lampedousa)are both in central and eastern Mediterranean and provide unique environments to meet the objectives presented before. They are located in the sunniest part of Europe and are exposed to high background levels and to alternating types of aerosols (Sahara/maritime) for which the quantification of combined effects are targeted in the study. The campaign and modelling efforts include studies on the variability of aerosol in the region. The project is focusing mainly in two major objectives: (a) Quantification of UV modulating factors and validation of UV models with calibrated data sets from an extensive campaign in the Mediterranean and (b) Modelling and validation studies on the mechanisms maintaining the enhanced tropospheric ozone in the region of study and quantification of interrelationships with the UV radiation field. Fields of science natural sciencesearth and related environmental sciencesatmospheric sciencesengineering and technologyenvironmental engineeringair pollution engineering Programme(s) FP4-ENV 2C - Specific programme of research and technological development in the field of environment and climate, 1994-1998 Topic(s) 01020101 - Stratospheric chemistry and depletion of the ozone layer Call for proposal Data not available Funding Scheme CSC - Cost-sharing contracts Coordinator ARISTOTLE UNIVERSITY OF THESSALONIKI EU contribution No data Address Aristotle University of Thessaloniki 54006 THESSALONKI Greece See on map Total cost No data Participants (11) Sort alphabetically Sort by EU Contribution Expand all Collapse all BELGIAN INSTITUTE FOR SPACE AERONOMY Belgium EU contribution No data Address 3,Ringlaan 3 1180 BRUXELLES See on map Total cost No data CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE France EU contribution No data Address Route des Gètines 92371 VERRIERES-LE-BUISSON See on map Total cost No data DEMOCRITUS UNIVERSITY OF THRACE Greece EU contribution No data Address Vas Sofias 1 67100 XANTHI See on map Total cost No data Ente per le Nuove Tecnologie l'Energia e l'Ambiente (ENEA) Italy EU contribution No data Address Via Anguillarese 301 00060 Santa Maria di Galeria Roma See on map Total cost No data Ludwig-Maximilians-Universität München Germany EU contribution No data Address Hohenbachernstraße 22 85354 Freising See on map Total cost No data METEOROLOGIE CONSULT GMBH Germany EU contribution No data Address Auf der Platt 47 61479 GLASHUETTEN See on map Total cost No data NATIONAL RESEARCH COUNCIL OF ITALY Italy EU contribution No data Address Via Fosso del Cavaliere 100 00133 ROMA See on map Total cost No data SWISS FEDERAL INSTITUTE OF TECHNOLOGY LAUSANNE Switzerland EU contribution No data Address ENAC-LPAS 1015 LAUSANNE See on map Total cost No data UNIVERSITY OF OSLO Norway EU contribution No data Address Moltke Moes Vei 31 0315 OSLO See on map Total cost No data UNIVERSITY OF THE AEGEAN Greece EU contribution No data Address 17,Karantoni 17 81100 MYTILINI See on map Total cost No data Università degli Studi di Roma La Sapienza Italy EU contribution No data Address Piazzale Aldo Moro 2/5 00185 Roma See on map Total cost No data
