Vorträge und Posterpräsentationen (mit Tagungsband-Eintrag):
F. Weiss, H. Grothe, F. Kubel, M. Hölzel:
"Metastable Phases In Clouds";
Vortrag: 15th Austrian Chemistry Days (Chemietage),
Graz;
23.09.2013
- 26.09.2013; in: "15th Austrian Chemistry Days, Graz Universtiy of Technology",
(2013).
Kurzfassung englisch:
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
Schlagworte:
clouds, ice nucleation
Erstellt aus der Publikationsdatenbank der Technischen Universität Wien.