ACRIDICON-CHUVA

Sept. - Oct. 2014, Manaus, Brazil

Sunset view from inside HALO. Picture: J. Schneider, MPIC.

Aerosol, Cloud, Precipitation, and Radiation Interaction and Dynamics of CONvective Cloud Systems - Cloud Processes of the Main Precipitation Systems in Brazil: A Contribution to Cloud Resolving Modeling and to the GPM (Global Precipitation Measurement)

Starting to work at the HALO aircraft early in the morning. Picture: J. Schneider, MPIC

To obtain a better understanding of the interaction of aerosols, clouds and radiation in convective clouds, simultaneous measurements of all aspects is desireable. To this end, the ACRIDICON-CHUVA campaign was conducted in September 2014 with the German research aircraft HALO. During the same period, the CHUVA project obtained a multitude of ground-based measurements. In addition, the ARM Aerial Facility (AAF) Gulfstream-1 (G-1) was deployed simultaneously to the Amazon to obtain measurements of cloud, trace gas, and aerosol properties.

The HALO integration phase took place in Oberpfaffenhofen during July/August 2014. Despite several unexpected bureaucratic problems, several test flights were conducted to ensure that all instruments worked properly and to train the operators. The measurement phase at Manaus (Brazil) started with the ferry flights (via the Capverdes) on September 01 and 02, 2014. These ferry flights were already used as measurement flights. At Manaus, we conducted 14 scientific flights between Sept. 06 and Oct. 01, before returning to Germany with two ferry flights, again via the Capeverdes, on Oct. 03 and 04.

Link to project website

Campaign Blog by "Andi" Andreae

Instrument: C-ToF-AMS

People involved: J. Schneider, C. Schulz

Collaboration:
Manfred Wendisch, André Ehrlich, University Leipzig, Germany
Luiz Machado, Rachel Albrecht, Karla Longo, CPTEC-INPE, Brazil
Ulrich Pöschl, Meinrat O. Andreae, MPI Chemistry, Germany
Paulo Artaxo, IF-USP, Brazil
Stephan Mertes, TROPOS, Germany
Marcia Akemi, IAG-USP, Brazil
Hans Schlager, Andreas Minikin, Bernadett Weinzierl, Christiane Voigt, Helmut Ziereis, Andreas Fix, DLR, Germany
Antônio Manzi, INPA, Brazil
Ralf Weigel, Stephan Borrmann, University Mainz, Germany
Daniel Rosenfeld, Hebrew University, Jerusalem, Israel
Bjorn Stevens, MPI Meteorology, Germany
Rodrigo Souza, UEA, Brazil
Martin Schnaiter, Ahmed Abdelmonem, KIT, Germany
Martina Krämer, FZ Jülich, Germany
Liciana Riccio, UNIFESP, Brazil
Volker Ebert, PTB, Germany
Klaus Pfeilsticker, University Heidelberg, Germany
Joachim Curtius, University Frankfurt, Germany


Results:

Wendisch, M., U. Poschl, M. Andreae, L. Machado, R. Albrecht, H. Schlager, D. Rosenfeld, S. Martin, A. Abdelmonem, A. Afchine, A. Araujo, P. Artaxo, H. Aufmhoff, H. Barbosa, S. Borrmann, R. Braga, B. Buchholz, M. Cecchini, A. Costa, J. Curtius, M. Dollner, M. Dorf, V. Dreiling, V. Ebert, A. Ehrlich, F. Ewald, G. Fisch, A. Fix, F. Frank, D. Fuetterer, C. Heckl, F. Heidelberg, T. Hueneke, E. Jaekel, E. Jaervinen, T. Jurkat, S. Kanter, U. Kaestner, M. Kenntner, J. Kesselmeier, T. Klimach, M. Knecht, R. Kohl, T. Koelling, M. Kraemer, M. Krueger, T. Krisna, J. Lavric, K. Longo, C. Mahnke, A. Manzi, B. Mayer, S. Mertes, A. Minikin, S. Molleker, S. Muench, B. Nillius, K. Pfeilsticker, C. Poehlker, A. Roiger, D. Rose, D. Rosenow, D. Sauer, M. Schnaiter, J. Schneider, C. Schulz, R. de Souza, A. Spanu, P. Stock, D. Vila, C. Voigt, A. Walser, D. Walter, R. Weigel, B. Weinzierl, F. Werner, M. Yamasoe, H. Ziereis, T. Zinner, and M. Zoeger, 2016: The ACRIDICON-CHUVA campaign: Studying tropical deep convective clouds and precipitation over Amazonia using the new German research aircraft HALO, Bull. Am. Meteorol. Soc., 97, 10, 1885-1908, doi:10.1175/BAMS-D-14-00255.1, 2016.

Andreae, M. O., Afchine, A., Albrecht, R., Holanda, B. A., Artaxo, P., Barbosa, H. M. J., Borrmann, S., Cecchini, M. A., Costa, A., Dollner, M., Fütterer, D., Järvinen, E., Jurkat, T., Klimach, T., Konemann, T., Knote, C., Krämer, M., Krisna, T., Machado, L. A. T., Mertes, S., Minikin, A., Pöhlker, C., Pöhlker, M. L., Pöschl, U., Rosenfeld, D., Sauer, D., Schlager, H., Schnaiter, M., Schneider, J., Schulz, C., Spanu, A., Sperling, V. B., Voigt, C., Walser, A., Wang, J., Weinzierl, B., Wendisch, M., and Ziereis, H.: Aerosol characteristics and particle production in the upper troposphere over the Amazon Basin, Atmos. Chem. Phys., 18, 921-961, https://doi.org/10.5194/acp-18-921-2018, 2018.

Saturno, J., Ditas, F., Penning de Vries, M., Holanda, B. A., Pöhlker, M. L., Carbone, S., Walter, D., Bobrowski, N., Brito, J., Chi, X., Gutmann, A., Hrabe de Angelis, I., Machado, L. A. T., Moran-Zuloaga, D., Rüdiger, J., Schneider, J., Schulz, C., Wang, Q., Wendisch, M., Artaxo, P., Wagner, T., Pöschl, U., Andreae, M. O., and Pöhlker, C.: African volcanic emissions influencing atmospheric aerosols over the Amazon rain forest, Atmos. Chem. Phys., 18, 10391-10405, https://doi.org/10.5194/acp-18-10391-2018, 2018.

Schulz, C., Schneider, J., Amorim Holanda, B., Appel, O., Costa, A., de Sá, S. S., Dreiling, V., Fütterer, D., Jurkat-Witschas, T., Klimach, T., Knote, C., Krämer, M., Martin, S. T., Mertes, S., Pöhlker, M. L., Sauer, D., Voigt, C., Walser, A., Weinzierl, B., Ziereis, H., Zöger, M., Andreae, M. O., Artaxo, P., Machado, L. A. T., Pöschl, U., Wendisch, M., and Borrmann, S.: Aircraft-based observations of isoprene-epoxydiol-derived secondary organic aerosol (IEPOX-SOA) in the tropical upper troposphere over the Amazon region, Atmos. Chem. Phys., 18, 14979-15001, https://doi.org/10.5194/acp-18-14979-2018, 2018.

Mei, F., Wang, J., Comstock, J. M., Weigel, R., Krämer, M., Mahnke, C., Shilling, J. E., Schneider, J., Long, C. N., Wendisch, M., Machado, L. A. T., Schmid, B., Krisna, T., Pekour, M., Hubbe, J., Giez, A., Weinzierl, B., Zoeger, M., Schulz, C., Pöhlker, M. L., Schlager, H., Cecchini, M. A., Andreae, M. O., Martin, S. T., de Sa, S. S., Fan, J., Tomlinson, J., Springston, S., Pöschl, U., Artaxo, P., Pöhlker, C., Klimach, T., Minikin, A., Afchine, A., and Borrmann, S.: Comparison of Aircraft Measurements during GoAmazon2014/5 and ACRIDICON-CHUVA, Atmos. Meas. Tech. Discuss., https://doi.org/10.5194/amt-2019-17, accepted, 2020.

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