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Title: A water activity based model of heterogeneous ice nucleation kinetics for freezing of water and aqueous solution droplets

Abstract

Immersion freezing of water and aqueous solutions by particles acting as ice nuclei (IN) is a common process of heterogeneous ice nucleation which occurs in many environments, especially in the atmosphere where it results in the glaciation of clouds. Here we experimentally show, using a variety of IN types suspended in various aqueous solutions, that immersion freezing temperatures and kinetics can be described solely by temperature, T, and solution water activity, aw, which is the ratio of the vapour pressure of the solution and the saturation water vapour pressure under the same conditions and, in equilibrium, equivalent to relative humidity (RH). This allows the freezing point and corresponding heterogeneous ice nucleation rate coefficient, Jhet, to be uniquely expressed by T and aw, a result we term the aw based immersion freezing model (ABIFM). This method is independent of the nature of the solute and accounts for several varying parameters, including cooling rate and IN surface area, while providing a holistic description of immersion freezing and allowing prediction of freezing temperatures, Jhet, frozen fractions, ice particle production rates and numbers. Our findings are based on experimental freezing data collected for various IN surface areas, A, and cooling rates, r, of dropletsmore » variously containing marine biogenic material, two soil humic acids, four mineral dusts, and one organic monolayer acting as IN. For all investigated IN types we demonstrate that droplet freezing temperatures increase as A increases. Similarly, droplet freezing temperatures increase as the cooling rate decreases. The log10(Jhet) values for the various IN types derived exclusively by T and aw, provide a complete description of the heterogeneous ice nucleation kinetics. Thus, the ABIFM can be applied over the entire range of T, RH, total particulate surface area, and cloud activation timescales typical of atmospheric conditions. Finally, we demonstrate that ABIFM can be used to derive frozen fractions of droplets and ice particle production for atmospheric models of cirrus and mixed phase cloud conditions.« less

Authors:
 [1];  [1]
  1. Stony Brook Univ., Stony Brook, NY (United States)
Publication Date:
Research Org.:
Stony Brook Univ., NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
OSTI Identifier:
1349435
Grant/Contract Number:  
SC0008613
Resource Type:
Accepted Manuscript
Journal Name:
Faraday Discussions
Additional Journal Information:
Journal Volume: 165; Journal ID: ISSN 1359-6640
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES

Citation Formats

Knopf, Daniel A., and Alpert, Peter A. A water activity based model of heterogeneous ice nucleation kinetics for freezing of water and aqueous solution droplets. United States: N. p., 2013. Web. doi:10.1039/C3FD00035D.
Knopf, Daniel A., & Alpert, Peter A. A water activity based model of heterogeneous ice nucleation kinetics for freezing of water and aqueous solution droplets. United States. https://doi.org/10.1039/C3FD00035D
Knopf, Daniel A., and Alpert, Peter A. Wed . "A water activity based model of heterogeneous ice nucleation kinetics for freezing of water and aqueous solution droplets". United States. https://doi.org/10.1039/C3FD00035D. https://www.osti.gov/servlets/purl/1349435.
@article{osti_1349435,
title = {A water activity based model of heterogeneous ice nucleation kinetics for freezing of water and aqueous solution droplets},
author = {Knopf, Daniel A. and Alpert, Peter A.},
abstractNote = {Immersion freezing of water and aqueous solutions by particles acting as ice nuclei (IN) is a common process of heterogeneous ice nucleation which occurs in many environments, especially in the atmosphere where it results in the glaciation of clouds. Here we experimentally show, using a variety of IN types suspended in various aqueous solutions, that immersion freezing temperatures and kinetics can be described solely by temperature, T, and solution water activity, aw, which is the ratio of the vapour pressure of the solution and the saturation water vapour pressure under the same conditions and, in equilibrium, equivalent to relative humidity (RH). This allows the freezing point and corresponding heterogeneous ice nucleation rate coefficient, Jhet, to be uniquely expressed by T and aw, a result we term the aw based immersion freezing model (ABIFM). This method is independent of the nature of the solute and accounts for several varying parameters, including cooling rate and IN surface area, while providing a holistic description of immersion freezing and allowing prediction of freezing temperatures, Jhet, frozen fractions, ice particle production rates and numbers. Our findings are based on experimental freezing data collected for various IN surface areas, A, and cooling rates, r, of droplets variously containing marine biogenic material, two soil humic acids, four mineral dusts, and one organic monolayer acting as IN. For all investigated IN types we demonstrate that droplet freezing temperatures increase as A increases. Similarly, droplet freezing temperatures increase as the cooling rate decreases. The log10(Jhet) values for the various IN types derived exclusively by T and aw, provide a complete description of the heterogeneous ice nucleation kinetics. Thus, the ABIFM can be applied over the entire range of T, RH, total particulate surface area, and cloud activation timescales typical of atmospheric conditions. Finally, we demonstrate that ABIFM can be used to derive frozen fractions of droplets and ice particle production for atmospheric models of cirrus and mixed phase cloud conditions.},
doi = {10.1039/C3FD00035D},
journal = {Faraday Discussions},
number = ,
volume = 165,
place = {United States},
year = {Wed Apr 24 00:00:00 EDT 2013},
month = {Wed Apr 24 00:00:00 EDT 2013}
}

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Heterogeneous Ice Nucleation in the Tropical Tropopause Layer
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Stochastic nucleation processes and substrate abundance explain time-dependent freezing in supercooled droplets
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Immersion freezing of water and aqueous ammonium sulfate droplets initiated by humic-like substances as a function of water activity
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  • DOI: 10.5194/acp-13-6603-2013

Laboratory studies of immersion and deposition mode ice nucleation of ozone aged mineral dust particles
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Contact freezing: a review of experimental studies
journal, January 2013

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Kaolinite particles as ice nuclei: learning from the use of different kaolinite samples and different coatings
journal, January 2014


Organic matter matters for ice nuclei of agricultural soil origin
journal, January 2014

  • Tobo, Y.; DeMott, P. J.; Hill, T. C. J.
  • Atmospheric Chemistry and Physics, Vol. 14, Issue 16
  • DOI: 10.5194/acp-14-8521-2014

Technical Note: A proposal for ice nucleation terminology
journal, January 2015


A comprehensive laboratory study on the immersion freezing behavior of illite NX particles: a comparison of 17 ice nucleation measurement techniques
journal, January 2015

  • Hiranuma, N.; Augustin-Bauditz, S.; Bingemer, H.
  • Atmospheric Chemistry and Physics, Vol. 15, Issue 5
  • DOI: 10.5194/acp-15-2489-2015

Integrating laboratory and field data to quantify the immersion freezing ice nucleation activity of mineral dust particles
journal, January 2015

  • DeMott, P. J.; Prenni, A. J.; McMeeking, G. R.
  • Atmospheric Chemistry and Physics, Vol. 15, Issue 1
  • DOI: 10.5194/acp-15-393-2015

A laboratory investigation of the ice nucleation efficiency of three types of mineral and soil dust
journal, January 2018

  • Paramonov, Mikhail; David, Robert O.; Kretzschmar, Ruben
  • Atmospheric Chemistry and Physics, Vol. 18, Issue 22
  • DOI: 10.5194/acp-18-16515-2018

Ice nucleation activity of silicates and aluminosilicates in pure water and aqueous solutions – Part 1: The K-feldspar microcline
journal, January 2018

  • Kumar, Anand; Marcolli, Claudia; Luo, Beiping
  • Atmospheric Chemistry and Physics, Vol. 18, Issue 10
  • DOI: 10.5194/acp-18-7057-2018

Mixed-phase orographic cloud microphysics during StormVEx and IFRACS
journal, January 2019

  • Lowenthal, Douglas H.; Hallar, A. Gannet; David, Robert O.
  • Atmospheric Chemistry and Physics, Vol. 19, Issue 8
  • DOI: 10.5194/acp-19-5387-2019

Ice nucleation activity of silicates and aluminosilicates in pure water and aqueous solutions – Part 2: Quartz and amorphous silica
journal, January 2019

  • Kumar, Anand; Marcolli, Claudia; Peter, Thomas
  • Atmospheric Chemistry and Physics, Vol. 19, Issue 9
  • DOI: 10.5194/acp-19-6035-2019

Ice nucleation activity of silicates and aluminosilicates in pure water and aqueous solutions – Part 3: Aluminosilicates
journal, January 2019

  • Kumar, Anand; Marcolli, Claudia; Peter, Thomas
  • Atmospheric Chemistry and Physics, Vol. 19, Issue 9
  • DOI: 10.5194/acp-19-6059-2019

An instrument for quantifying heterogeneous ice nucleation in multiwell plates using infrared emissions to detect freezing
journal, January 2018

  • Harrison, Alexander D.; Whale, Thomas F.; Rutledge, Rupert
  • Atmospheric Measurement Techniques, Vol. 11, Issue 10
  • DOI: 10.5194/amt-11-5629-2018

A technique for quantifying heterogeneous ice nucleation in microlitre supercooled water droplets
journal, January 2015

  • Whale, T. F.; Murray, B. J.; O&apos;Sullivan, D.
  • Atmospheric Measurement Techniques, Vol. 8, Issue 6
  • DOI: 10.5194/amt-8-2437-2015

BINARY: an optical freezing array for assessing temperature and time dependence of heterogeneous ice nucleation
journal, January 2014


Contact freezing: a review of experimental studies
text, January 2013


A laboratory investigation of the ice nucleation efficiency of three types of mineral and soil dust
text, January 2018


Mixed-phase orographic cloud microphysics during StormVEx and IFRACS
text, January 2019


Laboratory studies of immersion and deposition mode ice nucleation of ozone aged mineral dust particles
text, January 2013


BINARY: an optical freezing array for assessing temperature and time dependence of heterogeneous ice nucleation
journal, January 2015


A technique for quantifying heterogeneous ice nucleation in microlitre supercooled water droplets
text, January 2015