Light-absorbing impurities in snow cover across Northern Xinjiang, China
Light-absorbing impurities (LAIs, e.g. black carbon (BC), organic carbon (OC), mineral dust (MD)) deposited on snow cover reduce albedo and accelerate its melting. Northern Xinjiang (NX) is an arid and semi-arid inland region, where snowmelt leads to frequent floods that have been a serious threat t...
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ftdoajarticles:oai:doaj.org/article:716d20075bc54afb8abc743bbbc74940 2023-05-15T16:57:32+02:00 Light-absorbing impurities in snow cover across Northern Xinjiang, China Xinyue Zhong Shichang Kang Wei Zhang Junhua Yang Xiaofei Li Yulan Zhang Yajun Liu Pengfei Chen 2019-12-01T00:00:00Z https://doi.org/10.1017/jog.2019.69 https://doaj.org/article/716d20075bc54afb8abc743bbbc74940 EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0022143019000698/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2019.69 0022-1430 1727-5652 https://doaj.org/article/716d20075bc54afb8abc743bbbc74940 Journal of Glaciology, Vol 65, Pp 940-956 (2019) Light-absorbing impurities Northern Xinjiang radiative forcing snow albedo snowmelt Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article 2019 ftdoajarticles https://doi.org/10.1017/jog.2019.69 2023-03-12T01:30:57Z Light-absorbing impurities (LAIs, e.g. black carbon (BC), organic carbon (OC), mineral dust (MD)) deposited on snow cover reduce albedo and accelerate its melting. Northern Xinjiang (NX) is an arid and semi-arid inland region, where snowmelt leads to frequent floods that have been a serious threat to local ecological security. There is still a lack of quantitative assessments of the effects of LAIs on snowmelt in the region. This study investigates spatial variations of LAIs in snow and its effect on snow albedo, radiative forcing (RF) and snowmelt across NX. Results showed that concentrations of BC, OC (only water-insoluble OC), MD ranged from 32 to 8841 ng g−1, 77 to 8568 ng g−1 and 0.46 to 236 µg g−1, respectively. Weather Research and Forecasting Chemistry model suggested that residential emission was the largest source of BC. Snow, Ice, and Aerosol Radiative modelling showed that the average contribution of BC and MD to snow albedo reduction was 17 and 3%, respectively. RF caused by BC significantly exceeded RF caused by MD. In different scenarios, changes in snow cover duration (SCD) caused by BC and MD decreased by 1.36 ± 0.61 to 6.12 ± 3.38 d. Compared with MD, BC was the main dominant factor in reducing snow albedo and SCD across NX. Article in Journal/Newspaper Journal of Glaciology Directory of Open Access Journals: DOAJ Articles Journal of Glaciology 65 254 940 956 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Light-absorbing impurities Northern Xinjiang radiative forcing snow albedo snowmelt Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
spellingShingle |
Light-absorbing impurities Northern Xinjiang radiative forcing snow albedo snowmelt Environmental sciences GE1-350 Meteorology. Climatology QC851-999 Xinyue Zhong Shichang Kang Wei Zhang Junhua Yang Xiaofei Li Yulan Zhang Yajun Liu Pengfei Chen Light-absorbing impurities in snow cover across Northern Xinjiang, China |
topic_facet |
Light-absorbing impurities Northern Xinjiang radiative forcing snow albedo snowmelt Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
description |
Light-absorbing impurities (LAIs, e.g. black carbon (BC), organic carbon (OC), mineral dust (MD)) deposited on snow cover reduce albedo and accelerate its melting. Northern Xinjiang (NX) is an arid and semi-arid inland region, where snowmelt leads to frequent floods that have been a serious threat to local ecological security. There is still a lack of quantitative assessments of the effects of LAIs on snowmelt in the region. This study investigates spatial variations of LAIs in snow and its effect on snow albedo, radiative forcing (RF) and snowmelt across NX. Results showed that concentrations of BC, OC (only water-insoluble OC), MD ranged from 32 to 8841 ng g−1, 77 to 8568 ng g−1 and 0.46 to 236 µg g−1, respectively. Weather Research and Forecasting Chemistry model suggested that residential emission was the largest source of BC. Snow, Ice, and Aerosol Radiative modelling showed that the average contribution of BC and MD to snow albedo reduction was 17 and 3%, respectively. RF caused by BC significantly exceeded RF caused by MD. In different scenarios, changes in snow cover duration (SCD) caused by BC and MD decreased by 1.36 ± 0.61 to 6.12 ± 3.38 d. Compared with MD, BC was the main dominant factor in reducing snow albedo and SCD across NX. |
format |
Article in Journal/Newspaper |
author |
Xinyue Zhong Shichang Kang Wei Zhang Junhua Yang Xiaofei Li Yulan Zhang Yajun Liu Pengfei Chen |
author_facet |
Xinyue Zhong Shichang Kang Wei Zhang Junhua Yang Xiaofei Li Yulan Zhang Yajun Liu Pengfei Chen |
author_sort |
Xinyue Zhong |
title |
Light-absorbing impurities in snow cover across Northern Xinjiang, China |
title_short |
Light-absorbing impurities in snow cover across Northern Xinjiang, China |
title_full |
Light-absorbing impurities in snow cover across Northern Xinjiang, China |
title_fullStr |
Light-absorbing impurities in snow cover across Northern Xinjiang, China |
title_full_unstemmed |
Light-absorbing impurities in snow cover across Northern Xinjiang, China |
title_sort |
light-absorbing impurities in snow cover across northern xinjiang, china |
publisher |
Cambridge University Press |
publishDate |
2019 |
url |
https://doi.org/10.1017/jog.2019.69 https://doaj.org/article/716d20075bc54afb8abc743bbbc74940 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology, Vol 65, Pp 940-956 (2019) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0022143019000698/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2019.69 0022-1430 1727-5652 https://doaj.org/article/716d20075bc54afb8abc743bbbc74940 |
op_doi |
https://doi.org/10.1017/jog.2019.69 |
container_title |
Journal of Glaciology |
container_volume |
65 |
container_issue |
254 |
container_start_page |
940 |
op_container_end_page |
956 |
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1766049099115659264 |