Research Data Leeds Repository

Dataset associated with "Volcanic ash ice-nucleating activity can be enhanced or depressed by ash-gas interaction in the eruption plume"

Citation

Maters, Elena and Cimarelli, Corrado and Casas, Ana S. and Dingwell, Donald and Murray, Benjamin J. (2020) Dataset associated with "Volcanic ash ice-nucleating activity can be enhanced or depressed by ash-gas interaction in the eruption plume". University of Leeds. [Dataset] https://doi.org/10.5518/890¹

Dataset description

Volcanic ash can trigger ice nucleation when immersed in supercooled water, impacting several processes in the eruption plume/cloud and the wider atmosphere upon ash dispersal. The experimental study associated with this dataset explores how interaction with magmatic gases in the hot eruption plume, which inevitably alters the surface properties of ash, may affect the ice-nucleating activity (INA) of ash. We show that the INA of tephra is raised by exposure to H2O(g) mixed with SO2(g) at 800-400 °C, but is substantially reduced by exposure to H2O(g) alone or mixed with HCl(g) at the same temperatures. In contrast, the INA of K-feldspar and quartz is reduced by all three treatments. A decrease in INA after heating with H2O(g) might relate to a loss of ice-active sites by surface dehydroxylation and/or oxidation. On the tephra surfaces, metal chloride or sulphate salts form in the presence of HCl(g) or SO2(g), respectively. While NaCl and CaCl2 seem to have no effect on the tephra INA, CaSO4 is inferred to create ice-active sites, potentially through a particular combination of surface chemistry and topography. Together, these findings suggest a complex interplay of bulk mineralogy and surface alteration in influencing ice nucleation by volcanic ash, and highlight the general sensitivity of ash INA to interaction with gases at high temperatures in the eruption plume.

Keywords:

volcanic ash, ice nucleation, eruption plume, heterogeneous

Subjects:

F000 - Physical sciences > F600 - Geology > F670 - Geochemistry²
F000 - Physical sciences > F300 - Physics > F330 - Environmental physics > F331 - Atmospheric physics³
F000 - Physical sciences > F600 - Geology > F680 - Geohazards > F682 - Vulcanology⁴
F000 - Physical sciences > F100 - Chemistry > F170 - Physical chemistry⁵
F000 - Physical sciences > F100 - Chemistry > F140 - Environmental chemistry⁶

Divisions:

Faculty of Environment > School of Earth and Environment⁷
Faculty of Environment > School of Earth and Environment > Institute for Climate and Atmospheric Science⁸

Related resources:

Location	Type
https://doi.org/10.1016/j.epsl.2020.116587⁹	Publication
https://eprints.whiterose.ac.uk/166535/¹⁰	Publication

License:

Creative Commons Attribution 4.0 International (CC BY 4.0)

Date deposited:

23 Sep 2020 08:18

URI:

https://archive.researchdata.leeds.ac.uk/id/eprint/745¹¹

Additional details

Creators or authors:

Creators	ORCID	Primary affiliation	Primary affiliation ID	Primary affiliation ID type	Secondary affiliation	Secondary affiliation ID	Secondary affiliation ID type
Maters, Elena	https://orcid.org/0000-0003-1032-9865¹²	University of Leeds	https://ror.org/024mrxd33	ror	University of Cambridge	https://ror.org/013meh722	ror
Cimarelli, Corrado	https://orcid.org/0000-0002-5707-5930¹³	Ludwig-Maximilians University	https://ror.org/05591te55	ror
Casas, Ana S.	https://orcid.org/0000-0001-5013-1701¹⁴	Ludwig-Maximilians University	https://ror.org/05591te55	ror
Dingwell, Donald	https://orcid.org/0000-0002-3332-789X¹⁵	Ludwig-Maximilians University	https://ror.org/05591te55	ror
Murray, Benjamin J.	https://orcid.org/0000-0002-8198-8131¹⁶	University of Leeds	https://ror.org/024mrxd33	ror

Type of data:

Dataset

Research funders:

European Commission (H2020-MSCA-IF), Deutsche Forschungsgemeinschaft, European Research Council, European Research Council, Natural Environment Research Council

Grant numbers:

746695, CI 254/2-1, 834255, 648661, NE/T00648X/1

Publication date:

2020

Resource language:

English

Metadata language:

English

Research project title:

INoVA, EAVESDROP, MarineIce, M-Phase

Publisher:

University of Leeds

Contact email:

ecm63@cam.ac.uk¹⁷

Last Modified:

31 Oct 2024 12:10

Files

Documentation

Data Files Description [2kB]

¹⁸

Data Files Description [2kB]

²⁰

Data

Tephra Feldspar Quartz INA [358kB]

²²