Atmospheric chemistry lab work
Please follow this
for the course information retrieved from the ETH semester programme.
The first meeting will be on the 4.March 2009, 14:00, room CHN L17.1
Assistants: Gabriela Ciobanu and Pia Soonsin
Leader: Beni Zobrist
The practical course is divided into three parts:
- Self-dependent reading of recommended literature (2 days).
- Laboratory work on ice nucleation using a Differential Scanning Calorimeter (CHN D59, 2 days). The work will be performed in groups of 2-3 students. The dates will be scheduled on the first meeting. The literature reading has to be done before the laboratory work can be started.
- All groups together write one report, which includes the results of all individual groups. The results will further be presented in a short talk (15-20 min). The date for the talk will be scheduled on the first meeting. The report has to be handed in on the same day as the talk is given.
- B. Zobrist, C. Marcolli, T. Koop, B. P. Luo, D. M. Murphy, U. Lohmann, A. A. Zardini, U. K. Krieger, T. Corti, D. J. Cziczo, S. Fueglistaler, P. K. Hudson, D. S. Thomson, and T. Peter; Oxalic acid as a heterogeneous ice nucleus in the upper troposphere and its indirect aerosol effect, Atmos. Chem. Phys., 6, 3115–3129, 2006. pdf of the article
- B. Zobrist; Untersuchungen zum Gefrierverhalten von wässrigen Polyethylenglykol-Lösungen mit einem selbstentwickelten Kalorimeter; Diplomarbeit, ETH Zürich, 2001. Pages 5-7 and 9-11, pdf of the article
- Koop, T.; Luo, B.P.; Tsias, A. and T. Peter; Water activity as the determinant for homogeneous ice nucleation in aqueous solutions, Nature, 406, 611-614, 2000. article online
- Murphy, D.M and T. Koop, T; Review of the vapour pressures of ice and supercooled water for atmospheric applications, Q. J. R. Meteorol. Soc., 131, 1539-1565, 2005. Equations 7 and 10 to parameterize the vapor pressures of water and ice. article online