Objectif Aims of the Airborne Polar Experiments is the study and the characterisation of the chemical and physical properties of PSC and stratospheric aerosols using an airborne platform. For this purpose the high-flying all-weather research aircraft M-55 Geophysica, has been chosen. Such aircraft can operate at an altitude up to 21km. It provides an excellent platform for making such in situ-measurements. The aircraft will be able to perform multiple horizontal transects and also vertical soundings of a particular structure with a large, multi-instrument payload.The project is articulated in detailed in-situ measurements coupled to microphysical, chemical and transport models and forecasts for addressing the uncertainties in the quantification of the ozone loss. The first Arctic mission is scheduled for the period December 20, 1996-January 30,1997 with base in Rovaniemi, Finland. The scientific payload of Geophysica is composed by both in-situ and remote sensing instruments for aerosols and trace gases analysis. 1) In-situ Aerosol Instruments: - ARIAS is formed by a Knollenberg optical counter, a modified FSSP-300 capable of measuring particles with size diameters in the range 0.4-23 micron and a 3 wavelengths depolarisation backscattered sonde. ARIAS is able to characterise stratospheric aerosols and PSCs in terms of particle size, shape and refractive index. - ACAP, is a second photoelectric particle counter which uses a single particle counting technique. - COPAS is a condensation nuclei counter fed by 3 different inlets, permitting the determination of number concentration in various size regions of PSC and aerosols. 2) Remote sensing Aerosol instruments: - ABLE is a 2 wavelengths (532nm and 355nm), 2 polarisation Nd-YAG LIDAR to measure aerosol, PSC and tropospheric clouds. - MAL is a microjoule diode LIDAR operating at 900nm in the range 200-2000m from the aircraft. this region is not covered by ABLE 3) In situ Chemical Instruments: - FOZAN is a chemiluminescence ozone sonde operating on the chemical reaction between O3 in the airflow and a dye. - ECOC is an electrochemical ozone sonde. - ACH is a frost point hygrometer measuring water vapour from 0 up to 10 km. - FLASH is an optical fluorescent hygrometer measuring low water vapour concentration in the range 10-24 km. - CVI-PSC composition uses a CVI to sample only PSC particles. 4) Remote sensing Chemical Instruments: - GASCOD-A, an UV-visible spectrometer for the observation of: O3, NO2, BrO, OClO. - SAFIRE-A is a far infrared Fourier Transform Spectrometer for the determination of vertical profiles of: O2, O3, H2O, H2O2, OH, HO2, HDO, HCl, CLO, HBr, HF, CO, HCN. Modelling activities will guide the APE mission both in the planning of the flights and in the data evaluation. Chemical and dynamical forecast will design the most appropriate flight profile. Dynamical models coupled to chemistry will run after each flight to get a first interpretation of stratospheric phenomena. The data coming form the payload will be interpreted by microphysical box models and by numerical Mie, Ray Tracing and T Matrix algorithms. Champ scientifique natural sciencesbiological scienceszoologymammalogyprimatologyengineering and technologymechanical engineeringvehicle engineeringaerospace engineeringaircraftengineering and technologyenvironmental engineeringremote sensingnatural scienceschemical sciences Programme(s) FP4-ENV 2C - Specific programme of research and technological development in the field of environment and climate, 1994-1998 Thème(s) 01020101 - Stratospheric chemistry and depletion of the ozone layer Appel à propositions Data not available Régime de financement CSC - Cost-sharing contracts Coordinateur NATIONAL RESEARCH COUNCIL OF ITALY Contribution de l’UE Aucune donnée Adresse Via Panciatichi 64 50127 FIRENZE Italie Voir sur la carte Coût total Aucune donnée Participants (10) Trier par ordre alphabétique Trier par contribution de l’UE Tout développer Tout réduire Airborne Polar Experiment Italie Contribution de l’UE Aucune donnée Adresse Via Panciatichi 64 50127 Firenze Voir sur la carte Coût total Aucune donnée FINNISH METEOROLOGICAL INSTITUTE Finlande Contribution de l’UE Aucune donnée Adresse Taehtelaentie 71 99600 Sodankylae Voir sur la carte Coût total Aucune donnée JOHANNES GUTENBERG UNIVERSITAET MAINZ Allemagne Contribution de l’UE Aucune donnée Adresse Becherweg 21 55099 MAINZ Voir sur la carte Coût total Aucune donnée MAX-PLANCK-GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN E.V. Allemagne Contribution de l’UE Aucune donnée Adresse 55020 MAINZ Voir sur la carte Coût total Aucune donnée NORWEGIAN INSTITUTE FOR AIR RESEARCH Norvège Contribution de l’UE Aucune donnée Adresse Instituttveien 18 2027 KJELLER Voir sur la carte Coût total Aucune donnée OBSERVATOIRE CANTONAL DE NEUCHATEL Suisse Contribution de l’UE Aucune donnée Adresse 58,Rue de l'Observatoire 58 2000 NEUCHATEL Voir sur la carte Coût total Aucune donnée STOCKHOLM UNIVERSITET Suède Contribution de l’UE Aucune donnée Adresse 12,Svante Arrheniusväg 12, Arrhenius Laboratory 106 91 STOCKHOLM Voir sur la carte Coût total Aucune donnée UNIVERSITÀ DEGLI STUDI - L'AQUILA Italie Contribution de l’UE Aucune donnée Adresse Via Vetoio 10, Coppito 67010 ASSERGI Voir sur la carte Coût total Aucune donnée University of Cambridge Royaume-Uni Contribution de l’UE Aucune donnée Adresse Lensfield Road CB2 1EW Cambridge Voir sur la carte Coût total Aucune donnée Università degli Studi di Roma La Sapienza Italie Contribution de l’UE Aucune donnée Adresse Piazzale Aldo Moro 2/5 00185 Roma Voir sur la carte Coût total Aucune donnée