CARIBIC Sampling from Passenger Aircraft

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CARIBIC Sampling from Passenger Aircraft
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
Civil Aircraft for Regular Investigation of the
atmosphere Based on an Instrument Container

• 11 Research groups
• Germany (6)
• France (1), Netherlands (1)
• Sweden (1), Switzerland (1)
• UK (1)
• Lufthansa

• Consortium
• Start 1994
• First measurements 1997
• Lund
• Joined 1995
• First measurements 1999
• 2 PhD (Papaspiropoulos, Nguyen)

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Aircraft
LH A340-600 D-AIHE
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Inlet
water inlet
video camera
trace gas inlet
aerosol inlet
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Instrumentation
1.6 m
1.5 t
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CARIBIC Measurements

• Trace gases
• In situ
• CO
• O3
• NOy
• H2O
• Acetone, Methanol
• Air samples
• GHG
• Halogenated compounds
• Isotopes
• Special
• O2
• DOAS (NO2, O3, 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.)

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Results Particulate Sulfur
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First PESA Results
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Results Single Particle Analysis
TEM and EFTEM on stratospheric particle
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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