Talks and Poster Presentations (with Proceedings-Entry):
F. Weiss, H. Grothe, F. Kubel, M. Hölzel:
"Metastable Phases In Clouds";
Talk: 15th Austrian Chemistry Days (Chemietage),
Graz;
2013-09-23
- 2013-09-26; in: "15th Austrian Chemistry Days, Graz Universtiy of Technology",
(2013).
English abstract:
Clouds are a big impact factor on our earth´s climate and weather system, but are still not fully understood. This study tries to explain the supersaturation in clouds [1] by simulating conditions and receiving a metastable cubic ice via usage of various model substances, which are investigated by X-Ray Diffraction and Environmental Scanning Electron Microscopy. Further the formerly unknown structure of a metastable Nitric Acid Trihydrate (NAT is the biggest solid fraction in Polar Stratospheric Clouds) phase called alpha-NAT could be obtained by Neutron Diffraction and X-Ray Diffraction.
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[1] Peters et al, "When Dry Air Is Too Humid" Science, DOI: 10.1126/science.1135199
Keywords:
clouds, ice nucleation
Created from the Publication Database of the Vienna University of Technology.