Cel Problems to be solvedThe project proposes actions to detect, understand, assess and predict global change processes and to contribute to the European component of the global observing systems. It answers to interrogations of the origin, budget and evolution in the upper troposphere and lower stratosphere (UT/LS) of chemical species (ozone, water vapour) which have impact on air quality and climate, with special attention to the impact of aircraft emissions.Scientific objectives and approachThe MOZAIC-III project is designed for the evaluation of ozone and water vapour budgets in the tropopause region. It takes full advantage of the measuring capabilities of the in-service aircraft already equipped and of the database (O3, H2O) built up since August 1994. The purpose is to improve the current understanding on the processes active in this region of the atmosphere (UT/LS), and particularly on the aircraft impact. MOZAIC-III corresponds to installation, on the aircraft measuring units, of new CO and NOy devices and to the extension of the existing database of O3 and H2O measurements below 12 km altitude with simultaneous measurements of CO and NOy, in order to better characterise the origin of the air parcels sampled and the combined effects of transport and chemistry. The database is opened to the European research community. Data are analysed using statistical correlation, modelling of chemistry and dynamics, satellite data (ENVISAT, METEOSAT, TOVS) and assimilation methods. The duration of the series over almost 9 years allows analysing trends, interannual variability, and correlations between species. The numerous data collected at a quasi global scale are used to improve current understanding of tropospheric chemical and dynamical processes and to quantify the ozone budget in the UT/LS region: stratospheric contribution, transport of pollution from PBL, free tropospheric formation, productions from NOx emitted by aircraft and NOx induced by lightning, surface deposition, chemical losses. The relation between upper tropospheric water vapour and sea surface temperature over tropical, sub-tropical and mid-latitude regions is investigated.Expected impactsFrom the whole set of data collected since 1994, it is expected to assess the budget and trends of ozone and water vapour in the UT/LS, to reduce uncertainties on stratosphere / troposphere exchanges, to improve existing 3D CTM models and to better quantify the impact of subsonic aircraft. These results are of major concern for the evaluation of climate change. Dziedzina nauki natural sciencescomputer and information sciencesdatabasesnatural scienceschemical sciencesinorganic chemistryinorganic compoundsnatural sciencesearth and related environmental sciencesenvironmental sciencespollutionnatural sciencesearth and related environmental sciencesatmospheric sciencesclimatologyclimatic changesnatural sciencesearth and related environmental sciencesatmospheric sciencesmeteorologytroposphere Program(-y) FP5-EESD - Programme for research, technological development and demonstration on "Energy, environment and sustainable development, 1998-2002" Temat(-y) 1.1.4.-2. - Key action Global Change, Climate and Biodiversity Zaproszenie do składania wniosków Data not available System finansowania CSC - Cost-sharing contracts Koordynator CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE Wkład UE Brak danych Adres 14,Avenue Edouard Belin 14 31400 TOULOUSE Francja Zobacz na mapie Koszt całkowity Brak danych Uczestnicy (7) Sortuj alfabetycznie Sortuj według wkładu UE Rozwiń wszystko Zwiń wszystko CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE Francja Wkład UE Brak danych Adres Avenue Gustave Coriolis 42, C.N.R. MTtTorologique 31057 TOULOUSE Zobacz na mapie Koszt całkowity Brak danych CENTRE NATIONAL DE RECHERCHES MÉTÉOROLOGIQUES METEO FRANCE Francja Wkład UE Brak danych Adres Avenue Gustave Coriolis 42 31057 TOULOUSE Zobacz na mapie Koszt całkowity Brak danych FORSCHUNGSZENTRUM JUELICH GMBH Niemcy Wkład UE Brak danych Adres Leo-Brandt-Strasse 52425 Jülich Zobacz na mapie Koszt całkowity Brak danych GIE AIRBUS INDUSTRIE Francja Wkład UE Brak danych Adres 1,Rond-Point Maurice Bellonte 1 31707 BLAGNAC Zobacz na mapie Koszt całkowity Brak danych UNIVERSITE PAUL SABATIER DE TOULOUSE III Francja Wkład UE Brak danych Adres Avenue Edouard Belin 14 31400 TOULOUSE Zobacz na mapie Koszt całkowity Brak danych UNIVERSITY OF READING Zjednoczone Królestwo Wkład UE Brak danych Adres Earley Gate 2, Whiteknights RG6 6BB READING / SILCHESTER Zobacz na mapie Koszt całkowity Brak danych University of Cambridge Zjednoczone Królestwo Wkład UE Brak danych Adres Lensfield Road CB2 1EW Cambridge Zobacz na mapie Koszt całkowity Brak danych