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...
Main Authors: | , , , , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Basel, Switzerland : MDPI AG
2020
|
Subjects: | |
Online Access: | https://oa.tib.eu/renate/handle/123456789/6880 https://doi.org/10.34657/5927 |
id |
ftleibnizopen:oai:oai.leibnizopen.de:mof5pIkBdbrxVwz6NrEP |
---|---|
record_format |
openpolar |
spelling |
ftleibnizopen:oai:oai.leibnizopen.de:mof5pIkBdbrxVwz6NrEP 2023-08-20T04:04:16+02:00 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/ Atmosphere 11 (2020), Nr. 3 Aerosol composition Dry deposition Electron microscopy Mineral dust 550 article Text 2020 ftleibnizopen https://doi.org/10.34657/5927 2023-07-30T23:32:42Z 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. publishedVersion Article in Journal/Newspaper Arctic Svalbard LeibnizOpen (The Leibniz Association) Arctic Svalbard |
institution |
Open Polar |
collection |
LeibnizOpen (The Leibniz Association) |
op_collection_id |
ftleibnizopen |
language |
English |
topic |
Aerosol composition Dry deposition Electron microscopy Mineral dust 550 |
spellingShingle |
Aerosol composition Dry deposition Electron microscopy Mineral dust 550 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 |
Aerosol composition Dry deposition Electron microscopy Mineral dust 550 |
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 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Svalbard |
genre_facet |
Arctic Svalbard |
op_source |
Atmosphere 11 (2020), Nr. 3 |
op_rights |
CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.34657/5927 |
_version_ |
1774714669049577472 |