DOI: 10.1029/93gl03076. Freezing of stratospheric aerosol droplets

Freezing of stratospheric aerosol droplets

10.1029/93gl03076

Crossref journal-article

American Geophysical Union (AGU)

Geophysical Research Letters (13)

Abstract

Theoretical calculations are presented for homogeneous and heterogeneous freezing of sulfuric acid droplets under stratospheric conditions, based on classical nucleation theory. In contrast to previous results it is shown that a prominent candidate for freezing, sulfuric acid tetrahydrate (SAT ≡ H2SO4·4H2O), does not freeze homogeneously. The theoretical results limit the homogeneous freezing rate at 200 K to much less than 1 cm−3s−1, a value that may be estimated from bulk phase laboratory experiments. This suggests that the experimental value is likely to be a measure of heterogeneous, not homogeneous nucleation. Thus, under statospheric conditions, freezing of SAT can only occur in the presence of suitable nuclei; however, even for heterogeneous nucleation experimental results impose strong constraints. Since a nitric acid trihydrate (NAT) embryo probably needs a solid body for nucleation, these results put an important constraint on the theory of NAT formation in polar stratospheric clouds.

Bibliography

Luo, B., Peter, T., & Crutzen, P. (1994). Freezing of stratospheric aerosol droplets. Geophysical Research Letters, 21(13), 1447â1450. Portico.

Authors 3

Beiping Luo (first)
Thomas Peter (additional)
Paul Crutzen (additional)

References 21 Referenced 45

10.1029/GL007i006p00433
10.1029/91JD02740
10.1021/j100682a019
10.1021/ja01160a005
10.1021/ja01486a014
10.1063/1.1678198
{'key': 'e_1_2_1_8_1', 'series-title': 'Schwefel', 'author': 'Gmelin', 'year': '1960'} / Schwefel by Gmelin (1960)
10.1002/aic.690100531
10.1029/91JD01750
10.1175/1520-0469(1989)046<2252:CCNBHF>2.0.CO;2
10.1021/ja01603a009
10.1002/zaac.19342180406
10.1175/1520-0469(1980)037<1342:SADPOM>2.0.CO;2
10.1107/S056774087200487X
10.1002/bbpc.19920960320
{'key': 'e_1_2_1_17_1', 'first-page': '1231', 'article-title': 'Bildung und Struktur von H2SO4·6.5H2O und H2SO4·8H2O', 'volume': '42', 'author': 'Mootz D.', 'year': '1987', 'journal-title': 'Z. Naturforsch.'} / Z. Naturforsch. / Bildung und Struktur von H2SO4·6.5H2O und H2SO4·8H2O by Mootz D. (1987)
10.1034/j.1600-0889.1993.t01-1-00006.x
10.1007/978-94-009-9905-3
{'key': 'e_1_2_1_20_1', 'volume-title': 'Landolt‐Börnstein Serie, II. Band, 5.Teil', 'author': 'Schäfer K.', 'year': '1969'} / Landolt‐Börnstein Serie, II. Band, 5.Teil by Schäfer K. (1969)
{'key': 'e_1_2_1_21_1', 'first-page': '802', 'article-title': 'Le système binaire eau‐anhydride sulfurique', 'volume': '54', 'author': 'Vuillard G.', 'year': '1954', 'journal-title': 'Bull. Soc. Chim. de France'} / Bull. Soc. Chim. de France / Le système binaire eau‐anhydride sulfurique by Vuillard G. (1954)
10.1029/93GL02607

Dates

Type	When
Created	21 years, 6 months ago (Feb. 3, 2004, 10:32 p.m.)
Deposited	1 year, 11 months ago (Sept. 22, 2023, 10:28 p.m.)
Indexed	2 months ago (June 27, 2025, 9:45 a.m.)
Issued	31 years, 2 months ago (June 22, 1994)
Published	31 years, 2 months ago (June 22, 1994)
Published Online	12 years, 8 months ago (Dec. 7, 2012)
Published Print	31 years, 2 months ago (June 22, 1994)

Funders 0

None

BibTeX

@article{Luo_1994, title={Freezing of stratospheric aerosol droplets}, volume={21}, ISSN={1944-8007}, url={http://dx.doi.org/10.1029/93gl03076}, DOI={10.1029/93gl03076}, number={13}, journal={Geophysical Research Letters}, publisher={American Geophysical Union (AGU)}, author={Luo, Beiping and Peter, Thomas and Crutzen, Paul}, year={1994}, month=jun, pages={1447–1450} }

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