DACCIWA Aircraft Campaign 2016

(Dynamics-aerosol-chemistry-cloud interactions in West Africa)

June-July 2016, Lomé, Togo

The German research aircraft Falcon of DLR at Lomé airport. Picture: J. Schneider, MPIC.

The German research aircraft Falcon of DLR at Lomé airport. Picture: J. Schneider, MPIC.

DACCIWA was a EU funded international project, coordinated by P. Knipperz (KIT). The aircraft field campaign was part of the work package "Atmospheric Chemistry". The campaign took place in June/July 2016 at Lomé, Togo and brought together three research aircraft from three countries: the German Deutsches Zentrum für Luft- und Raumfahrt (DLR) Falcon 20, the French Service des Avions Français Instrumentés pour la Recherche en Environnement (SAFIRE) ATR 42 and the British Antarctic Survey (BAS) Twin Otter. We operated the C-ToF-AMS onboard the DLR Falcon. All three aircraft were equipped with a large set of aerosol and trace gas instruments, including a C-ToF-AMS on all three aircraft.

The British research aircraft Twin Otter, operated by the British Antarctic Survey (BAS). Picture: J. Schneider, MPIC.

The British research aircraft Twin Otter, operated by the British Antarctic Survey (BAS). Picture: J. Schneider, MPIC.

Project objectives:
- Quantify atmospheric composition
- Quantify coupling between aerosols and cloud and raindrops
- Identify controls on low-level stratiform clouds
- Identify controls on precipitation
- Quantify impacts on radiation and energy budgets
- Evaluate and improve models and satellite retrievals

The French research aircraft ATR42, operated by SAFIRE. Picture: J. Schneider, MPIC.

The French research aircraft ATR42, operated by SAFIRE. Picture: J. Schneider, MPIC.

Collobration:
DLR Oberpfaffenhofen (H. Schlager, C. Voigt, D. Sauer, S. Kaufmann), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Orleans (V. Catoire), University of Manchester (H. Coe, K. Bower), University of Leeds (P. Rosenberg), University of Reading (C. Chiu), British Antarctic Survey (J. Johnson), Karlsruhe Institute for Technology (P. Knipperz), Université Pierre et Marie Curie, Paris (C. Flamant), Université Blaise Pascal, Clermont-Ferrand (A. Schwarzenboeck, E. Freney), Université Paul Sabatier, Toulouse (C. Mari)

People involved:
J. Schneider, C. Schulz, A. Batenburg, S. Borrmann

Instruments:
C-ToF-AMS, OPC

Results:
Haslett, S. L., Taylor, J. W., Evans, M., Morris, E., Vogel, B., Dajuma, A., Brito, J., Batenburg, A. M., Borrmann, S., Schneider, J., Schulz, C., Denjean, C., Bourrianne, T., Knippertz, P., Dupuy, R., Schwarzenböck, A., Sauer, D., Flamant, C., Dorsey, J., Crawford, I., and Coe, H.: Remote biomass burning dominates southern West African air pollution during the monsoon, Atmos. Chem. Phys., 19, 15217–15234, https://doi.org/10.5194/acp-19-15217-2019, 2019.