Differences and Similarities of Central Asian, African, and Arctic Dust Composition from a Single Particle Perspective
Mineral dust composition affects a multitude of processes in the atmosphere and adjacent compartments. Dust dry deposition was collected near source in northwest Africa, in Central Asia, and on Svalbard and at three locations of the African outflow regime. Samples were subjected to automated scannin...
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ftleibnizopen:oai:oai.leibnizopen.de:ubu3IJEBBwLIz6xGKRyJ 2024-09-15T18:38:25+00:00 Differences and Similarities of Central Asian, African, and Arctic Dust Composition from a Single Particle Perspective Kandler, Konrad Schneiders, Kilian Heuser, Johannes Waza, Andebo Aryasree, Sudharaj Althausen, Dietrich Hofer, Julian Abdullaev, Sabur F. Makhmudov, Abduvosit N. 2020 application/pdf https://oa.tib.eu/renate/handle/123456789/6880 https://doi.org/10.34657/5927 eng eng Basel, Switzerland : MDPI AG CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ 550 Aerosol composition Dry deposition Electron microscopy Article Text 2020 ftleibnizopen https://doi.org/10.34657/5927 2024-08-05T12:41:46Z Mineral dust composition affects a multitude of processes in the atmosphere and adjacent compartments. Dust dry deposition was collected near source in northwest Africa, in Central Asia, and on Svalbard and at three locations of the African outflow regime. Samples were subjected to automated scanning electron microscopy with energy-dispersive X-ray analysis to obtain size and composition of 216,000 individual particles. Results show low temporal variation in estimated optical properties for each location, but considerable differences between the African, Central Asian, and Arctic regimes. No significant difference was found between the K-feldspar relative abundances, indicating comparable related ice-nucleation abilities. The mixing state between calcium and iron compounds was different for near source and transport regimes, potentially in part due to size sorting effects. As a result, in certain situations (high acid availability, limited time) atmospheric processing of the dust is expected to lead to less increased iron solubility for near-source dusts (in particular for Central Asian ones) than for transported ones (in particular of Sahelian origin). © 2020 by the authors. Licensee MDPI, Basel, Switzerland. publishedVersion Article in Journal/Newspaper Svalbard LeibnizOpen (The Leibniz Association) |
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Open Polar |
collection |
LeibnizOpen (The Leibniz Association) |
op_collection_id |
ftleibnizopen |
language |
English |
topic |
550 Aerosol composition Dry deposition Electron microscopy |
spellingShingle |
550 Aerosol composition Dry deposition Electron microscopy Kandler, Konrad Schneiders, Kilian Heuser, Johannes Waza, Andebo Aryasree, Sudharaj Althausen, Dietrich Hofer, Julian Abdullaev, Sabur F. Makhmudov, Abduvosit N. Differences and Similarities of Central Asian, African, and Arctic Dust Composition from a Single Particle Perspective |
topic_facet |
550 Aerosol composition Dry deposition Electron microscopy |
description |
Mineral dust composition affects a multitude of processes in the atmosphere and adjacent compartments. Dust dry deposition was collected near source in northwest Africa, in Central Asia, and on Svalbard and at three locations of the African outflow regime. Samples were subjected to automated scanning electron microscopy with energy-dispersive X-ray analysis to obtain size and composition of 216,000 individual particles. Results show low temporal variation in estimated optical properties for each location, but considerable differences between the African, Central Asian, and Arctic regimes. No significant difference was found between the K-feldspar relative abundances, indicating comparable related ice-nucleation abilities. The mixing state between calcium and iron compounds was different for near source and transport regimes, potentially in part due to size sorting effects. As a result, in certain situations (high acid availability, limited time) atmospheric processing of the dust is expected to lead to less increased iron solubility for near-source dusts (in particular for Central Asian ones) than for transported ones (in particular of Sahelian origin). © 2020 by the authors. Licensee MDPI, Basel, Switzerland. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Kandler, Konrad Schneiders, Kilian Heuser, Johannes Waza, Andebo Aryasree, Sudharaj Althausen, Dietrich Hofer, Julian Abdullaev, Sabur F. Makhmudov, Abduvosit N. |
author_facet |
Kandler, Konrad Schneiders, Kilian Heuser, Johannes Waza, Andebo Aryasree, Sudharaj Althausen, Dietrich Hofer, Julian Abdullaev, Sabur F. Makhmudov, Abduvosit N. |
author_sort |
Kandler, Konrad |
title |
Differences and Similarities of Central Asian, African, and Arctic Dust Composition from a Single Particle Perspective |
title_short |
Differences and Similarities of Central Asian, African, and Arctic Dust Composition from a Single Particle Perspective |
title_full |
Differences and Similarities of Central Asian, African, and Arctic Dust Composition from a Single Particle Perspective |
title_fullStr |
Differences and Similarities of Central Asian, African, and Arctic Dust Composition from a Single Particle Perspective |
title_full_unstemmed |
Differences and Similarities of Central Asian, African, and Arctic Dust Composition from a Single Particle Perspective |
title_sort |
differences and similarities of central asian, african, and arctic dust composition from a single particle perspective |
publisher |
Basel, Switzerland : MDPI AG |
publishDate |
2020 |
url |
https://oa.tib.eu/renate/handle/123456789/6880 https://doi.org/10.34657/5927 |
genre |
Svalbard |
genre_facet |
Svalbard |
op_rights |
CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.34657/5927 |
_version_ |
1810482836209139712 |