Ice formation via deposition nucleation on mineral dust and organics
Dependence of onset relative humidity on total particulate surface area
Bibliographic Data
| ID | 15545897 |
|---|---|
| Authors | Zamin A Kanji (0000-0001-8610-3921, corresponding author), Octavian Florea (University of Toronto), Jonathan P D Abbatt (0000-0002-3372-334X, University of Toronto) |
| Year | 2008 |
| Volume | 3 |
| Issue | 2 |
| Pages | 025004-025004 |
| Publication date | 2008-04-01 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Environmental Research Letters (JOURNAL) |
| Journal identifiers | ISSN: 1748-9326 • E-ISSN: 1748-9326 |
| Publisher | IOP Publishing (PUBLISHER • GB) |
| DOI | 10.1088/1748-9326/3/2/025004 |
| OpenAlex | W2167602740 |
| Language | EN |
| Citations received | 1 |
| References cited | 27 |
We present ice nucleation results for Arizona test dust, kaolinite, montmorillonite, silica, silica coated with a hydrophobic octyl chain, oxalic acid dihydrate, Gascoyne leonardite (a humic material), and Aldrich humic acid (sodium salt). The focus was on deposition mode nucleation below water saturation at 233 K. Particles were deposited onto a hydrophobic cold stage by atomization of a slurry/solution and exposed to a constant partial pressure of water vapor. By lowering the temperature of the stage, the relative humidity with respect to ice (RHi) was gradually increased until ice nucleation was observed using digital photography. Different numbers of particles were deposited onto the cold stage by varying the atomization solution concentration and deposition time. For the same total particulate surface area, mineral dust particles nucleated ice at lower supersaturations than all other materials. The most hydrophobic materials, i.e. Gascoyne leonardite and octyl silica, were the least active. For our limit of detection of one ice crystal, the ice onset RHi values were dependent on the total surface area of the particulates, indicating that no unique threshold RHi for ice nucleation prevails
Arctic · Arctic ice pack · Clear ice · Deposition (geology · Ice nucleus · Mineralogy · Nucleation · Particle (ecology · Particulates · Relative humidity · Saturation (graph theory · Thermodynamics · Atmospheric aerosols and clouds · Atmospheric chemistry and aerosols · Chemical Engineering · Chemistry · Materials Science · nanoparticles nucleation surface interactions · Geology
| Unique citing works | 1 |
|---|---|
| Citations per year | 0.06 |
| Citation span | 2009 - 2009 (1) |
| Citation velocity | historical |
| Highly cited | No |
| Citation types | Neutral: 1 |