1. CARIBIC – Sampling from Passenger Aircraft Consortium –Start: 1994 –First measurements: 1997 –Lund Joined 1995 First measurements: 1999 2 PhD (Papaspiropoulos, Nguyen) 11 Research groups –Germany (6) –France (1), Netherlands (1) –Sweden (1), Switzerland (1) –UK (1) + Lufthansa Civil Aircraft for Regular Investigation of the atmosphere Based on an Instrument Container VR project (3 y): Global scale experimental studies of the aerosol chemical composition in the upper troposphere and the lowermost stratosphere – focus on nano structures

2. Aircraft LH A340-600 D-AIHE

3. Inlet aerosol inlet video camera trace gas inlet water inlet

4. Instrumentation 1.6 m 1.5 t CO O3O3 NO y

5. CARIBIC Measurements Trace gases –In situ CO O 3 NO y H 2 O Acetone, Methanol –Air samples GHG Halogenated compounds Isotopes –Special O 2 DOAS (NO 2, O 3, BrO, HCHO) Aerosol –Size distribution 3 CPC (cutoff 4, 12, 18 nm) OPC (100 nm – 5 µm) –Samples (100 nm – 2µm) Quantitative analyses –PIXE (S and heavier) –PESA (H(?), C, N, O) Single particle analyses –TEM –EFTEM Meteorology (trajectories etc.)

6. Results – Particulate Sulfur

7. First PESA Results

8. Results – Single Particle Analysis TEM and EFTEM on stratospheric particle

9. Plans Short term (this year) –Develop H analysis –Undertake large number of H, C, N, O analyses –Sulfur climatology –Influence of deep convection on UT/LS aerosol Longer term –Methods to classify the carbonaceous component –Climatology H, C, N, O –Production of carbonaceous aerosol in the stratosphere –Revisit single particle analysis