Melting of H2SO4x4H2O particles upon cooling: Implications for polar stratospheric clouds
Koop T, Carslaw KS (1996)
SCIENCE 272(5268): 1638-1641.
Zeitschriftenaufsatz
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Autor*in
Koop, ThomasUniBi
;
Carslaw, K. S.
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Einrichtung
Abstract / Bemerkung
Polar stratospheric clouds (PSCs) are important for the chemical activation of chlorine compounds and subsequent ozone depletion. Solid PSCs can form on sulfuric acid tetrahydrate (SAT) (H2SO4 . 4H(2)O) nuclei, but recent laboratory experiments have shown that PSC nucleation on SAT is strongly hindered. A PSC formation mechanism is proposed in which SAT particles melt upon cooling in the presence of HNO3 to form liquid HNO3-H2SO4-H2O droplets 2 to 3 kelvin above the ice frost point. This mechanism offers a PSC formation temperature that is defined by the ambient conditions and sets a temperature limit below which PSCs should form.
Erscheinungsjahr
1996
Zeitschriftentitel
SCIENCE
Band
272
Ausgabe
5268
Seite(n)
1638-1641
ISSN
0036-8075
eISSN
1095-9203
Page URI
https://pub.uni-bielefeld.de/record/2380374
Zitieren
Koop T, Carslaw KS. Melting of H2SO4x4H2O particles upon cooling: Implications for polar stratospheric clouds. SCIENCE. 1996;272(5268):1638-1641.
Koop, T., & Carslaw, K. S. (1996). Melting of H2SO4x4H2O particles upon cooling: Implications for polar stratospheric clouds. SCIENCE, 272(5268), 1638-1641. https://doi.org/10.1126/science.272.5268.1638
Koop, Thomas, and Carslaw, K. S. 1996. “Melting of H2SO4x4H2O particles upon cooling: Implications for polar stratospheric clouds”. SCIENCE 272 (5268): 1638-1641.
Koop, T., and Carslaw, K. S. (1996). Melting of H2SO4x4H2O particles upon cooling: Implications for polar stratospheric clouds. SCIENCE 272, 1638-1641.
Koop, T., & Carslaw, K.S., 1996. Melting of H2SO4x4H2O particles upon cooling: Implications for polar stratospheric clouds. SCIENCE, 272(5268), p 1638-1641.
T. Koop and K.S. Carslaw, “Melting of H2SO4x4H2O particles upon cooling: Implications for polar stratospheric clouds”, SCIENCE, vol. 272, 1996, pp. 1638-1641.
Koop, T., Carslaw, K.S.: Melting of H2SO4x4H2O particles upon cooling: Implications for polar stratospheric clouds. SCIENCE. 272, 1638-1641 (1996).
Koop, Thomas, and Carslaw, K. S. “Melting of H2SO4x4H2O particles upon cooling: Implications for polar stratospheric clouds”. SCIENCE 272.5268 (1996): 1638-1641.
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References
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