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Atmospheric Physics at MISU Department of Meteorology Stockholm University

Atmospheric Physics at MISU Department of Meteorology Stockholm University. the middle atmosphere (10-100 km). Jörg Gumbel Jonas Hedin Markus Rapp. Atmospheric Physics at MISU 2 scientists 2 guest scientists 4 Ph.D. students 1 research engeneer 1 professor emeritus. december 2004.

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Atmospheric Physics at MISU Department of Meteorology Stockholm University

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  1. Atmospheric Physics at MISU Department of Meteorology Stockholm University the middleatmosphere(10-100 km) Jörg GumbelJonas HedinMarkus Rapp

  2. Atmospheric Physics at MISU 2 scientists 2 guest scientists 4 Ph.D. students 1 research engeneer 1 professor emeritus december 2004

  3. the mesosphere noctilucent clouds (NLC)

  4. The role of particles in the middle atmosphere sources • properties • interactions

  5. The role of particles in the middle atmosphere sources • properties • interactions ice particles, meteoric smoke, ion clusters, other . . .

  6. global measurements NLC water vapour sodium

  7. ground-based measurements theory and modelling radiativetransfer lidar microphysics

  8. in situ measurements MISU's rocket programme

  9. Up to 100 tons of meteoric material enter the Earth’s atmosphere each day.

  10. Up to 100 tons of meteoric material enter the Earth’s atmosphere each day. What happens then ???

  11. The fate of meteoric material in the mesosphere meteoroids

  12. The fate of meteoric material in the mesosphere meteoroids

  13. The fate of meteoric material in the mesosphere meteoroids

  14. The fate of meteoric material in the mesosphere meteoroids

  15. Why are we interested ?

  16. Meteoric smoke particles may be major players in the mesosphere • condensation nuclei for ice (NLC, PMSE, ...) • metal budget • charge budget • heterogeneous chemistry • . . .

  17. But: Nobody has ever investigated these particles.

  18. But: Nobody has ever investigated these particles. In fact, there has been no direct proof of their existence...

  19. MAGIC Mesospheric Aerosol – Genesis, Interaction, and Composition

  20. MAGIC Mesospheric Aerosol – Genesis, Interaction, and Composition Sample meteoric smoke particles and take them to the laboratory !

  21. MAGIC • Do smoke particles of cosmicorigin exist in the mesosphere? • What is their number density and altitude distribution? • What is their size? • What is their composition?

  22. MAGIC • Do smoke particles of cosmicorigin exist in the mesosphere? • What is their number density and altitude distribution? • What is their size? • What is their composition?

  23. MAGIC The aerodynamics of particle impact: payload

  24. MAGIC sampling surface The aerodynamics of particle impact: payload

  25. The first MAGIC launch: Esrange, Sweden, January 2005

  26. The first MAGIC launch: Esrange, Sweden, January 2005 • MAGIC smoke collectors • hygrometer (optical water measurements) • charged particle detectors • meteorological rockets (chaff) • balloon sounding • RMR lidar • MST radar, meteor radar, EISCAT • ground-based optical and geomagnetic monitoring • the Odin satellite

  27. The first MAGIC launch: Esrange, Sweden, January 2005

  28. Payload Recovery

  29. Analysis: • EOL 2200FS 200-kV field emission scanning transmission electron microscope (TEM) • high-angle annular dark field (HAADF) imaging • energy dispersive x-ray analysis (EDS)

  30. support structure 3 nm TEM grid

  31. nanometer particles aggregates sub-nanometer particles ?

  32. Stay tuned for more . . .

  33. Department of Meteorology Stockholm University Nordic Research Board A Graduate School and Workshop on Middle Atmospheric Aerosols Stockholm, Sweden, October 2-8, 2005 • Course Topics: • Aeronomy of the middle atmosphere • Meteoric material in the middle atmosphere • Ice particles in the polar summer mesosphere • The stratospheric background aerosol • Ice particles in the stratosphere • Particle properties and interactions • Measurement techniques • Teachers: • Jörg Gumbel, Sweden • Niels Larsen, Denmark • Ingrid Mann, Germany • Asta Pellenin-Wannberg, Sweden • Jan Pettersson, Sweden • John Plane, U.K. • Markus Rapp, Germany • Douglas ReVelle, USA • David Siskind, USA • Esa Turunen, Finland • Tomas Waldemarsson, USA The registration deadline is June 5, 2005. There is no registration fee for this course. Support (travel, accomodation) is available from the NorFA network. http://www.misu.su.se

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