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Wheeler MJ, Mason RH, Steunenberg K, Wagstaff M, Chou C, Bertram AK. Immersion freezing of supermicron mineral dust particles: freezing results, testing different schemes for describing ice nucleation, and ice nucleation active site densities. J Phys Chem A 2014; 119:4358-72. [PMID: 25345526 DOI: 10.1021/jp507875q] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Ice nucleation on mineral dust particles is known to be an important process in the atmosphere. To accurately implement ice nucleation on mineral dust particles in atmospheric simulations, a suitable theory or scheme is desirable to describe laboratory freezing data in atmospheric models. In the following, we investigated ice nucleation by supermicron mineral dust particles [kaolinite and Arizona Test Dust (ATD)] in the immersion mode. The median freezing temperature for ATD was measured to be approximately -30 °C compared with approximately -36 °C for kaolinite. The freezing results were then used to test four different schemes previously used to describe ice nucleation in atmospheric models. In terms of ability to fit the data (quantified by calculating the reduced chi-squared values), the following order was found for ATD (from best to worst): active site, pdf-α, deterministic, single-α. For kaolinite, the following order was found (from best to worst): active site, deterministic, pdf-α, single-α. The variation in the predicted median freezing temperature per decade change in the cooling rate for each of the schemes was also compared with experimental results from other studies. The deterministic model predicts the median freezing temperature to be independent of cooling rate, while experimental results show a weak dependence on cooling rate. The single-α, pdf-α, and active site schemes all agree with the experimental results within roughly a factor of 2. On the basis of our results and previous results where different schemes were tested, the active site scheme is recommended for describing the freezing of ATD and kaolinite particles. We also used our ice nucleation results to determine the ice nucleation active site (INAS) density for the supermicron dust particles tested. Using the data, we show that the INAS densities of supermicron kaolinite and ATD particles studied here are smaller than the INAS densities of submicron kaolinite and ATD particles previously reported in the literature.
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Affiliation(s)
- M J Wheeler
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, Canada V6T 1Z1
| | - R H Mason
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, Canada V6T 1Z1
| | - K Steunenberg
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, Canada V6T 1Z1
| | - M Wagstaff
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, Canada V6T 1Z1
| | - C Chou
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, Canada V6T 1Z1
| | - A K Bertram
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, Canada V6T 1Z1
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Wang B, Knopf DA. Heterogeneous ice nucleation on particles composed of humic-like substances impacted by O3. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2010jd014964] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Kanji ZA, Abbatt JPD. Ice Nucleation onto Arizona Test Dust at Cirrus Temperatures: Effect of Temperature and Aerosol Size on Onset Relative Humidity. J Phys Chem A 2009; 114:935-41. [DOI: 10.1021/jp908661m] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Z. A. Kanji
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6
| | - J. P. D. Abbatt
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6
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Eastwood ML, Cremel S, Gehrke C, Girard E, Bertram AK. Ice nucleation on mineral dust particles: Onset conditions, nucleation rates and contact angles. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2008jd010639] [Citation(s) in RCA: 91] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Möhler O. Effect of sulfuric acid coating on heterogeneous ice nucleation by soot aerosol particles. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2004jd005169] [Citation(s) in RCA: 170] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Schumann U. Influence of fuel sulfur on the composition of aircraft exhaust plumes: The experiments SULFUR 1–7. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001jd000813] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Curtius J, Arnold F. Measurement of aerosol sulfuric acid: 1. Experimental setup, characterization, and calibration of a novel mass spectrometric system. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2001jd000604] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Timmreck C. Three-dimensional simulation of stratospheric background aerosol: First results of a multiannual general circulation model simulation. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2001jd000765] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Longfellow CA, Ravishankara AR, Hanson DR. Reactive uptake on hydrocarbon soot: Focus on NO2. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999jd900145] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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