Publications of Oliver Appel

Appel, O., Köllner , F., Dragoneas, A., Hünig, A., Molleker, S., Schlager, H., Mahnke, C., Weigel, R., Port, M., Schulz, C., Drewnick, F., Vogel, B., Stroh, F. and Borrmann, S.: Chemical analysis of the Asian Tropopause Aerosol Layer (ATAL) with emphasis on secondary aerosol particles using aircraft based in situ aerosol mass spectrometry, Atmospheric Chemistry and Physics, 22(20), 13607–13630, doi:10.5194/acp-22-13607-2022, 2022.

Dragoneas, A., Molleker, S., Appel, O., Hünig, A., Böttger, T., Hermann, M., Drewnick, F., Schneider, J., Weigel, R. and Borrmann, S.: The realization of autonomous, aircraft-based, real-time aerosol mass spectrometry in the upper troposphere and lower stratosphere, Atmospheric Measurement Techniques, 15(19), 5719–5742, doi:10.5194/amt-15-5719-2022, 2022.

Hünig, A., Appel, O., Dragoneas, A., Molleker, S., Clemen, H.-C., Helleis, F., Klimach, T., Köllner, F., Böttger, T., Drewnick, F., Schneider, J. and Borrmann, S.: Design, characterization, and first field deployment of a novel aircraft-based aerosol mass spectrometer combining the laser ablation and flash vaporization techniques, Atmospheric Measurement Techniques, 15(9), 2889–2921, doi:10.5194/amt-15-2889-2022, 2022.

Schneider, J., Weigel, R., Klimach, T., Dragoneas, A., Appel, O., Hünig, A., Molleker, S., Köllner, F., Clemen, H.-C., Eppers, O., Hoppe, P., Hoor, P., Mahnke, C., Krämer, M., Rolf, C., Grooß, J.-U., Zahn, A., Obersteiner, F., Ravegnani, F., Ulanovsky, A., Schlager, H., Scheibe, M., Diskin, G. S., DiGangi, J. P., Nowak, J. B., Zöger, M. and Borrmann, S.: Aircraft-based observation of meteoric material in lower stratospheric aerosol particles between 15 and 68° N, Atmospheric Chemistry and Physics, 21(2), 989–1013, doi:10.5194/acp-21-989-2021, 2021.

Molleker, S., Helleis, F., Klimach, T., Appel, O., Clemen, H.-C., Dragoneas, A., Gurk, C., Hünig, A., Köllner, F., Rubach, F., Schulz, C., Schneider, J. and Borrmann, S.: Application of an O-ring pinch device as a constant-pressure inlet (CPI) for airborne sampling, Atmospheric Measurement Techniques, 13(7), 3651–3660, doi:10.5194/amt-13-3651-2020, 2020.

Hoepfner, M., Ungermann, J., Borrmann, S., Wagner, R., Spang, R., Riese, M., Stiller, G., Appel, O., Batenburg, A. M., Bucci, S., Cairo, F., Dragoneas, A., Friedl-Vallon, F., Hünig, A., Johansson, S., Krasauskas, L., Legras, B., Leisner, T., Mahnke, C. O., Moehler, O., Molleker, S., Mueller, R., Neubert, T., Orphal, J., Preusse, P., Rex, M., Saathoff, H., Stroh, F., Weigel, R. and Wohltmann, I.: Ammonium nitrate particles formed in upper troposphere from ground ammonia sources during Asian monsoons, Nature Geoscience, 12(8), 608–612, doi:10.1038/s41561-019-0385-8, 2019.

Schulz, C., Schneider, J., Holanda, B. A., Appel, O., Costa, A., de Sa, S. S., Dreiling, V., Fuetterer, D., Jurkat-Witschas, T., Klimach, T., Knote, C., Kraemer, M., Martin, S. T., Mertes, S., Pöhlker, M. L., Sauer, D., Voigt, C., Walser, A., Weinzierl, B., Ziereis, H., Zoeger, 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, Atmospheric Chemistry and Physics, 18(20), 14979–15001, doi:10.5194/acp-18-14979-2018, 2018.

Ekinci, F., Köllner, F., Eppers, O., Appel, O., Brauner, P., Dragoneas, A., Molleker, S., Lauther, V., Volk, C. M., Hoor, P., Schneider, J. and Borrmann, S.: Transport of ammonium nitrate and organic aerosol into the extratropical stratosphere associated with the Asian monsoon outflow, in EGU General Assembly 2024, Vienna, Austria & Online., 2024.

Schneider, J., Weigel, R., Klimach, T., Dragoneas, A., Appel, O., Hünig, A., Molleker, S., Köllner, F., Clemen, H.-C., Eppers, O., Hoppe, P., Hoor, P., Mahnke, C., Krämer, M., Rolf, C., Grooß, J.-U., Zahn, A., Obersteiner, F., Ravegnani, F., Ulanovsky, A., Schlager, H., Scheibe, M., Diskin, G. S., DiGangi, J. P., Nowak, J. B., Zöger, M. and Borrmann, S.: Aircraft-based observation of meteoric material in lower stratospheric aerosol particles between 15 and 68° N, Atmospheric Chemistry and Physics Discussions, 20, doi:10.5194/acp-2020-660, 2020.

Schneider, J., Weigel, R., Klimach, T., Dragoneas, A., Appel, O., Hünig, A., Molleker, S., Köllner, F., Clemen, H.-C., Eppers, O., Hoppe, P., Hoor, P., Mahnke, C., Krämer, M., Rolf, C., Grooß, J.-U., Zahn, A., Obersteiner, F., Ravegnani, F., Ulanovsky, A., Schlager, H., Scheibe, M., Diskin, G. S., DiGangi, J. P., Nowak, J. B., Zöger, M. and Borrmann, S.: Aircraft-based observation of meteoric material in lower stratospheric aerosol particles between 15 and 68°N, Earth and Space Science Open Archive, in review, doi:10.1002/essoar.10501338.1, 2019.

Schulz, C., Schneider, J., Holanda, B. A., Appel, O., Costa, A., de Sá, S. S., Dreiling, V., Fütterer, D., Jurkat-Witschas, T., Klimach, T., Krämer, M., Martin, S. T., Mertes, S., Pöhlker, M. L., Sauer, D., Voigt, C., 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, Atmospheric Chemistry and Physics Discussions, 18, doi:10.5194/acp-2018-232, 2018.

Appel, O., Köllner , F., Dragoneas, A., Hünig, A., Molleker, S., Schlager, H., Mahnke, C., Weigel, R., Port, M., Schulz, C., Drewnick, F., Vogel, B., Stroh, F. and Borrmann, S.: Chemical analysis of the Asian Tropopause Aerosol Layer (ATAL) with emphasis on secondary aerosol particles using aircraft based in situ aerosol mass spectrometry, Atmospheric Chemistry and Physics Discussions, 22, doi:10.5194/acp-2022-92, 2022.

Hünig, A., Appel, O., Dragoneas, A., Molleker, S., Clemen, H.-C., Helleis, F., Klimach, T., Köllner, F., Böttger, T., Drewnick, F., Schneider, J. and Borrmann, S.: Design, characterization, and first field deployment of a novel aircraft-based aerosol mass spectrometer combining the laser ablation and flash vaporization techniques, Atmospheric Measurement Techniques Discussions, 14, doi:10.5194/amt-2021-271, 2021.