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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fttibhannoverren:oai:oa.tib.eu:123456789/6880 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 ESSN:2073-4433 DOI:https://doi.org/10.3390/atmos11030269 https://oa.tib.eu/renate/handle/123456789/6880 https://doi.org/10.34657/5927 CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ frei zugänglich ddc:550 Aerosol composition Dry deposition Electron microscopy status-type:publishedVersion doc-type:Article doc-type:Text 2020 fttibhannoverren https://doi.org/10.34657/592710.3390/atmos11030269 2024-06-26T23:32:42Z 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. Article in Journal/Newspaper Svalbard Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover) |
institution |
Open Polar |
collection |
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover) |
op_collection_id |
fttibhannoverren |
language |
English |
topic |
ddc:550 Aerosol composition Dry deposition Electron microscopy |
spellingShingle |
ddc: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 |
ddc: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. |
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_relation |
ESSN:2073-4433 DOI:https://doi.org/10.3390/atmos11030269 https://oa.tib.eu/renate/handle/123456789/6880 https://doi.org/10.34657/5927 |
op_rights |
CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ frei zugänglich |
op_doi |
https://doi.org/10.34657/592710.3390/atmos11030269 |
_version_ |
1810482834261934080 |