Ice nucleating properties of airborne dust from an actively retreating glacier in Yukon, Canada ...
Airborne dust from glacial outwash sediments may alter properties of clouds and climate at high latitudes by acting as ice nucleating particles (INPs). Nevertheless, the ice nucleating ability of airborne dust from glacial outwash sediments remains uncertain. To address this uncertainty, we measured...
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ftdatacite:10.3929/ethz-b-000559647 2024-04-28T08:20:18+00:00 Ice nucleating properties of airborne dust from an actively retreating glacier in Yukon, Canada ... Xi, Yu Xu, Cuishan Downey, Arnold Stevens, Robin Bachelder, Jill King, James Hayes, Patrick L. Bertram, Allan K. 2022 application/pdf https://dx.doi.org/10.3929/ethz-b-000559647 http://hdl.handle.net/20.500.11850/559647 en eng ETH Zurich article-journal Text ScholarlyArticle Journal Article 2022 ftdatacite https://doi.org/10.3929/ethz-b-000559647 2024-04-02T12:32:08Z Airborne dust from glacial outwash sediments may alter properties of clouds and climate at high latitudes by acting as ice nucleating particles (INPs). Nevertheless, the ice nucleating ability of airborne dust from glacial outwash sediments remains uncertain. To address this uncertainty, we measured the ice nucleating ability of airborne dust near an actively retreating glacier in Yukon, Canada during a period when airborne dust concentrations were well above background levels and most likely originated from glacial outwash sediments in the region. The airborne dust caused freezing at temperatures from -6 to -23 degrees C. Based on a heat assay and an ammonium sulfate assay, the INPs from the airborne dust that caused freezing at temperatures warmer than -15 degrees C likely contained biological materials. We show that airborne dust from the retreating glacier likely led to high concentrations of ice nucleating particles at the site for at least most of May 2018. These concentrations, at a freezing ... : Environmental Science: Atmospheres, 2 (4) ... Article in Journal/Newspaper glacier* Yukon DataCite Metadata Store (German National Library of Science and Technology) |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
description |
Airborne dust from glacial outwash sediments may alter properties of clouds and climate at high latitudes by acting as ice nucleating particles (INPs). Nevertheless, the ice nucleating ability of airborne dust from glacial outwash sediments remains uncertain. To address this uncertainty, we measured the ice nucleating ability of airborne dust near an actively retreating glacier in Yukon, Canada during a period when airborne dust concentrations were well above background levels and most likely originated from glacial outwash sediments in the region. The airborne dust caused freezing at temperatures from -6 to -23 degrees C. Based on a heat assay and an ammonium sulfate assay, the INPs from the airborne dust that caused freezing at temperatures warmer than -15 degrees C likely contained biological materials. We show that airborne dust from the retreating glacier likely led to high concentrations of ice nucleating particles at the site for at least most of May 2018. These concentrations, at a freezing ... : Environmental Science: Atmospheres, 2 (4) ... |
format |
Article in Journal/Newspaper |
author |
Xi, Yu Xu, Cuishan Downey, Arnold Stevens, Robin Bachelder, Jill King, James Hayes, Patrick L. Bertram, Allan K. |
spellingShingle |
Xi, Yu Xu, Cuishan Downey, Arnold Stevens, Robin Bachelder, Jill King, James Hayes, Patrick L. Bertram, Allan K. Ice nucleating properties of airborne dust from an actively retreating glacier in Yukon, Canada ... |
author_facet |
Xi, Yu Xu, Cuishan Downey, Arnold Stevens, Robin Bachelder, Jill King, James Hayes, Patrick L. Bertram, Allan K. |
author_sort |
Xi, Yu |
title |
Ice nucleating properties of airborne dust from an actively retreating glacier in Yukon, Canada ... |
title_short |
Ice nucleating properties of airborne dust from an actively retreating glacier in Yukon, Canada ... |
title_full |
Ice nucleating properties of airborne dust from an actively retreating glacier in Yukon, Canada ... |
title_fullStr |
Ice nucleating properties of airborne dust from an actively retreating glacier in Yukon, Canada ... |
title_full_unstemmed |
Ice nucleating properties of airborne dust from an actively retreating glacier in Yukon, Canada ... |
title_sort |
ice nucleating properties of airborne dust from an actively retreating glacier in yukon, canada ... |
publisher |
ETH Zurich |
publishDate |
2022 |
url |
https://dx.doi.org/10.3929/ethz-b-000559647 http://hdl.handle.net/20.500.11850/559647 |
genre |
glacier* Yukon |
genre_facet |
glacier* Yukon |
op_doi |
https://doi.org/10.3929/ethz-b-000559647 |
_version_ |
1797583259352170496 |