Airborne in-situ characterisation of the microphysical and optical properties of small ice crystals and large hydrometeors (AMOSIL): HALO implementation and analysis methodology

• Antragsteller: Professor Dr. Stephan Borrmann; Dr. Martin Schnaiter
• Fachliche Zuordnung: Physik und Chemie der Atmosphäre
• Förderung: Förderung von 2007 bis 2015
• Projektkennung: Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 47592118

• Erstellungsjahr: 2017

Zusammenfassung der Projektergebnisse

Knowledge or impact gained through the AMOSIL funding includes (a) a successful new holographic instrument (HALOHOLO) that has flown in several field campaigns, and the software to process holograms on supercomputers and software to search through the resulting reconstructed data to get useful science out of the measurements, (b) a unique cloud particle imager/polar nephelometer (PHIPS-HALO) that has been certified and flown on HALO and on several other aircrafts with automated software for the particle image analysis and image-to-scattering function assignment to investigate the fundamental link between the ice particle microphysical and corresponding angular light scattering properties, (c) a SID-3 instrument certified for HALO with automated scattering pattern analysis to gain important information on the structural details of small ice particles that are not accessible by other probes. TV documentary Planet E.: Abenteuer Wolkenforschung, 23 November 2014 on ZDF (http://www.zdf.de/planet-e/projekt-racepac-deutsche-wissenschaftler-erforschen-die-rolle-der-wolken-beim-klimawandel-35926184.html) Deutsche Welle, and Phoenix: English translation of the ZDF Planet E program “Abenteuer Wolkenforschung”, broadcast by DW workldwide several times in 2015.

Projektbezogene Publikationen (Auswahl)

• (2011). Design of an in-line, digital holographic imaging system for airborne measurement of clouds. Appl Opt, 50(10), 1405-1412
  Spuler, S. M., & Fugal, J.
  (Siehe online unter https://doi.org/10.1364/ao.50.001405)
• (2011). Particle Habit Imaging Using Incoherent Light: A First Step toward a Novel Instrument for Cloud Microphysics. Journal of Atmospheric and Oceanic Technology, 28(4), 493–512
  Schön, R., Schnaiter, M., Ulanowski, Z., Schmitt, C., Benz, S., Möhler, O., … Schurath, U.
  (Siehe online unter https://doi.org/10.1175/2011JTECHA1445.1)
• (2015). Holographic measurements of inhomogeneous cloud mixing at the centimeter scale. Science, 350(6256), 87-90
  Beals, M. J., Fugal, J. P., Shaw, R. A., Lu, J., Spuler, S. M., & Stith, J. L.
  (Siehe online unter https://doi.org/10.1126/science.aab0751)
• (2015). The origins of ice crystals measured in mixed-phase clouds at the high-alpine site Jungfraujoch. Atmospheric Chemistry and Physics, 15(22), 12953-12969
  Lloyd, G., Choularton, T. W., Bower, K. N., Gallagher, M. W., Connolly, P. J., Flynn, M., . . . Henneberger, J.
  (Siehe online unter https://doi.org/10.5194/acp-15-12953-2015)
• (2016). Airborne observations of the microphysical structure of two contrasting cirrus clouds. Journal of Geophysical Research-Atmospheres, 121(22), 13510-13536
  O'Shea, S. J., Choularton, T. W., Lloyd, G., Crosier, J., Bower, K. N., Gallagher, M., . . . Pickering, J. C.
  (Siehe online unter https://doi.org/10.1002/2016JD025278)
• (2016). Cloud chamber experiments on the origin of ice crystal complexity in cirrus clouds. Atmospheric Chemistry and Physics, 16(8), 5091–5110
  Schnaiter, M., Järvinen, E., Vochezer, P., Abdelmonem, A., Wagner, R., Jourdan, O., … Heymsfield, A. J.
  (Siehe online unter https://doi.org/10.5194/acp-16-5091-2016)
• (2016). Comparison of measured and computed phase functions of individual tropospheric ice crystals. Journal of Quantitative Spectroscopy and Radiative Transfer, 178, 379–389
  Stegmann, P. G., Tropea, C., Järvinen, E., & Schnaiter, M.
  (Siehe online unter https://doi.org/10.1016/j.jqsrt.2015.12.019)
• (2016). In situ characterization of mixed phase clouds using the Small Ice Detector and the Particle Phase Discriminator. Atmospheric Measurement Techniques, 9, 159–177
  Vochezer, P., Järvinen, E., Wagner, R., Kupiszewski, P., Leisner, T., & Schnaiter, M.
  (Siehe online unter https://doi.org/10.5194/amt-9-159-2016)
• (2016). Microphysical properties of ice crystal precipitation and surfacegenerated ice crystals in a High Alpine environment in Switzerland. Journal of Applied Meteorology and Climatology
  Schlenczek, O., Fugal, J. P., Lloyd, G., Bower, K. N., Choularton, T. W., Flynn, M., . . . Borrmann, S.
  (Siehe online unter https://doi.org/10.1175/JAMC-D-16-0060.1)
• (2016). ML-CIRRUS - The airborne experiment on natural cirrus and contrail cirrus with the high-altitude long-range research aircraft HALO. Bulletin of the American Meteorological Society, BAMS-D-15-00213.1
  Voigt, C., Schumann, U., Minikin, A., Abdelmonem, A., Afchine, A., Borrmann, S., … Zöger, M.
  (Siehe online unter https://doi.org/10.1175/BAMS-D-15-00213.1)
• (2016). PHIPS-HALO: The airborne Particle Habit Imaging and Polar Scattering probe-Part 1: Design and operation. Atmospheric Measurement Techniques, 9(7), 3131–3144
  Abdelmonem, A., Järvinen, E., Duft, D., Hirst, E., Vogt, S., Leisner, T., & Schnaiter, M.
  (Siehe online unter https://doi.org/10.5194/amt-9-3131-2016)
• (2016). PHIPS-HALO: The airborne Particle Habit Imaging and Polar Scattering probe-Part 1: Design and operation. Atmospheric Measurement Techniques, 9(7), 3131–3144
  Abdelmonem, A., Järvinen, E., Duft, D., Hirst, E., Vogt, S., Leisner, T., & Schnaiter, M.
  (Siehe online unter https://doi.org/10.5194/amt-9-3131-2016)
• (2016). Quasi-Spherical Ice in Convective Clouds. Journal of the Atmospheric Sciences, 73(10), 3885–3910
  Järvinen, E., Schnaiter, M., Mioche, G., Jourdan, O., Shcherbakov, V. N., Costa, A., … Leisner, T.
  (Siehe online unter https://doi.org/10.1175/JAS-D-15-0365.1)
• (2016). The ACRIDICON-CHUVA campaign: Studying tropical deep convective clouds and precipitation over Amazonia using the new German research aircraft HALO. Bulletin of the American Meteorological Society, (September), 160128144638003
  Wendisch, M., Pöschl, U., Andreae, M. O., Machado, L. A. T., Albrecht, R., Schlager, H., … Zöger, M.
  (Siehe online unter https://doi.org/10.1175/BAMS-D-14-00255.1)
• PHIPS-HALO: the airborne Particle Habit Imaging and Polar Scattering probe – Part 2: Characterization and first results, Atmos. Meas. Tech. Discuss., 2017, 1–33
  Schnaiter, M., Järvinen, E., Abdelmonem, A. and Leisner, T.
  (Siehe online unter https://doi.org/10.5194/amt-2017-304)