Opposite effects of mineral dust nonsphericity and size on dust-induced snow albedo reduction
We quantified the combined effects of mineral dust nonsphericity and size on snow albedo reduction using the MOPSMAP (Modeled optical properties of ensembles of aerosol particles) package and SAMDS (Spectral Albedo Model for Dirty Snow) with the consideration of dust from Sahara, Greenland, San Juan...
Published in: | Geophysical Research Letters |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2022
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Online Access: | https://doi.org/10.1029/2022GL099031 |
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ftncar:oai:drupal-site.org:articles_25529 2024-04-14T08:12:28+00:00 Opposite effects of mineral dust nonsphericity and size on dust-induced snow albedo reduction Shi, Tenglong (author) He, Cenlin (author) Zhang, Daizhou (author) Zhang, Xuelei (author) Niu, Xiaoying (author) Xing, Yuxuan (author) Chen, Yang (author) Cui, Jiecan (author) Pu, Wei (author) Wang, Xin (author) 2022-06-28 https://doi.org/10.1029/2022GL099031 en eng Geophysical Research Letters--Geophysical Research Letters--0094-8276--1944-8007 The complex refraction index of mineral dust--10.5281/zenodo.5899730 articles:25529 doi:10.1029/2022GL099031 ark:/85065/d7xw4ph0 Copyright 2022 American Geophysical Union article Text 2022 ftncar https://doi.org/10.1029/2022GL099031 2024-03-21T18:00:26Z We quantified the combined effects of mineral dust nonsphericity and size on snow albedo reduction using the MOPSMAP (Modeled optical properties of ensembles of aerosol particles) package and SAMDS (Spectral Albedo Model for Dirty Snow) with the consideration of dust from Sahara, Greenland, San Juan Mountains, and Tibetan Plateau. Results indicate that the dust-induced albedo reduction decreases by up to 30% as the effective radii of dust particles increase in 1-5 mu m. Nonspherical dust enhances snow albedo reduction relative to spherical dust by up to 20%. Stronger enhancements are obtained for higher dust concentration and larger dust size. Furthermore, the dust nonsphericity-induced enhancement of snow albedo reduction is more pronounced for more-absorptive dust. Finally, we develop a new parameterization for quantifying the dependence of snow albedo reduction on dust nonsphericity and size, and provide a convenient way for assessing the climate impacts of dust in snow. Article in Journal/Newspaper Greenland OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Greenland San Juan Geophysical Research Letters 49 12 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
We quantified the combined effects of mineral dust nonsphericity and size on snow albedo reduction using the MOPSMAP (Modeled optical properties of ensembles of aerosol particles) package and SAMDS (Spectral Albedo Model for Dirty Snow) with the consideration of dust from Sahara, Greenland, San Juan Mountains, and Tibetan Plateau. Results indicate that the dust-induced albedo reduction decreases by up to 30% as the effective radii of dust particles increase in 1-5 mu m. Nonspherical dust enhances snow albedo reduction relative to spherical dust by up to 20%. Stronger enhancements are obtained for higher dust concentration and larger dust size. Furthermore, the dust nonsphericity-induced enhancement of snow albedo reduction is more pronounced for more-absorptive dust. Finally, we develop a new parameterization for quantifying the dependence of snow albedo reduction on dust nonsphericity and size, and provide a convenient way for assessing the climate impacts of dust in snow. |
author2 |
Shi, Tenglong (author) He, Cenlin (author) Zhang, Daizhou (author) Zhang, Xuelei (author) Niu, Xiaoying (author) Xing, Yuxuan (author) Chen, Yang (author) Cui, Jiecan (author) Pu, Wei (author) Wang, Xin (author) |
format |
Article in Journal/Newspaper |
title |
Opposite effects of mineral dust nonsphericity and size on dust-induced snow albedo reduction |
spellingShingle |
Opposite effects of mineral dust nonsphericity and size on dust-induced snow albedo reduction |
title_short |
Opposite effects of mineral dust nonsphericity and size on dust-induced snow albedo reduction |
title_full |
Opposite effects of mineral dust nonsphericity and size on dust-induced snow albedo reduction |
title_fullStr |
Opposite effects of mineral dust nonsphericity and size on dust-induced snow albedo reduction |
title_full_unstemmed |
Opposite effects of mineral dust nonsphericity and size on dust-induced snow albedo reduction |
title_sort |
opposite effects of mineral dust nonsphericity and size on dust-induced snow albedo reduction |
publishDate |
2022 |
url |
https://doi.org/10.1029/2022GL099031 |
geographic |
Greenland San Juan |
geographic_facet |
Greenland San Juan |
genre |
Greenland |
genre_facet |
Greenland |
op_relation |
Geophysical Research Letters--Geophysical Research Letters--0094-8276--1944-8007 The complex refraction index of mineral dust--10.5281/zenodo.5899730 articles:25529 doi:10.1029/2022GL099031 ark:/85065/d7xw4ph0 |
op_rights |
Copyright 2022 American Geophysical Union |
op_doi |
https://doi.org/10.1029/2022GL099031 |
container_title |
Geophysical Research Letters |
container_volume |
49 |
container_issue |
12 |
_version_ |
1796310277559418880 |