Carbonaceous matter in glacier at the headwaters of the Yangtze River: Concentration, sources and fractionation during the melting process
Carbonaceous matter has an important impact on glacial retreat in the Tibetan Plateau, further affecting the water resource supply. However, the related studies on carbonaceous matter are still scarce in Geladaindong (GLDD) region, the source of the Yangtze River. Therefore, the concentration, sourc...
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Online Access: | http://ir.ieecas.cn/handle/361006/12987 http://ir.ieecas.cn/handle/361006/12988 https://doi.org/10.1016/j.jes.2019.08.001 |
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ftchinacascieeca:oai:ir.ieecas.cn:361006/12988 2023-06-11T04:12:43+02:00 Carbonaceous matter in glacier at the headwaters of the Yangtze River: Concentration, sources and fractionation during the melting process Hu, Zhaofu Kang, Shichang He, Xiaobo Yan, Fangping Zhang, Yulan Chen, Pengfei Li, Xiaofei Gao, Shaopeng Li, Chaoliu 2020 http://ir.ieecas.cn/handle/361006/12987 http://ir.ieecas.cn/handle/361006/12988 https://doi.org/10.1016/j.jes.2019.08.001 英语 eng SCIENCE PRESS JOURNAL OF ENVIRONMENTAL SCIENCES http://ir.ieecas.cn/handle/361006/12987 http://ir.ieecas.cn/handle/361006/12988 doi:10.1016/j.jes.2019.08.001 Carbonaceous matter Major ions Melting process Light absorption characteristic Tibetan Plateau DISSOLVED ORGANIC-CARBON LIGHT-ABSORBING IMPURITIES BLACK CARBON ABSORPTION CHARACTERISTICS ICE CORE ELEMENTAL CARBON REMOTE STATIONS SNOW AEROSOLS Environmental Sciences & Ecology Environmental Sciences 期刊论文 2020 ftchinacascieeca https://doi.org/10.1016/j.jes.2019.08.001 2023-05-08T13:24:14Z Carbonaceous matter has an important impact on glacial retreat in the Tibetan Plateau, further affecting the water resource supply. However, the related studies on carbonaceous matter are still scarce in Geladaindong (GLDD) region, the source of the Yangtze River. Therefore, the concentration, source and variations of carbonaceous matter at Ganglongjiama (GLJM) glacier in GLDD region were investigated during the melting period in 2017, which could deepen our understanding on carbonaceous matter contribution to glacier melting. The results showed that dissolved organic carbon (DOC) concentration of snowpit samples (283 +/- 200 mu g/L) was much lower than that of precipitation samples (624 +/- 361 mu g/L), indicating that large parts of DOC could be rapidly leached from the snowpit during the melting process. In contrast, refractory black carbon (rBC) concentration measured by Single Particle Soot Photometer of snowpit samples (4.27 +/- 3.15 mu g/L) was much higher than that of precipitation samples (0.97 +/- 0.49 mu g/L). Similarly, DOC with high mass absorption cross-section measured at 365 nm value was also likely to enrich in snowpit during the melting process. In addition, it was found that both rBC and DOC with high light-absorbing ability began to leach from the snowpit when melting process became stronger. Therefore, rBC and DOC with high light-absorbing ability exhibited similar behavior during the melting process. Based on relationship among DOC, rBC and K+ in precipitation, the main source of carbonaceous matter in GLJM glacier was biomass burning during the study period. (c) 2019 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. Report ice core Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences) Journal of Environmental Sciences 87 389 397 |
institution |
Open Polar |
collection |
Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacascieeca |
language |
English |
topic |
Carbonaceous matter Major ions Melting process Light absorption characteristic Tibetan Plateau DISSOLVED ORGANIC-CARBON LIGHT-ABSORBING IMPURITIES BLACK CARBON ABSORPTION CHARACTERISTICS ICE CORE ELEMENTAL CARBON REMOTE STATIONS SNOW AEROSOLS Environmental Sciences & Ecology Environmental Sciences |
spellingShingle |
Carbonaceous matter Major ions Melting process Light absorption characteristic Tibetan Plateau DISSOLVED ORGANIC-CARBON LIGHT-ABSORBING IMPURITIES BLACK CARBON ABSORPTION CHARACTERISTICS ICE CORE ELEMENTAL CARBON REMOTE STATIONS SNOW AEROSOLS Environmental Sciences & Ecology Environmental Sciences Hu, Zhaofu Kang, Shichang He, Xiaobo Yan, Fangping Zhang, Yulan Chen, Pengfei Li, Xiaofei Gao, Shaopeng Li, Chaoliu Carbonaceous matter in glacier at the headwaters of the Yangtze River: Concentration, sources and fractionation during the melting process |
topic_facet |
Carbonaceous matter Major ions Melting process Light absorption characteristic Tibetan Plateau DISSOLVED ORGANIC-CARBON LIGHT-ABSORBING IMPURITIES BLACK CARBON ABSORPTION CHARACTERISTICS ICE CORE ELEMENTAL CARBON REMOTE STATIONS SNOW AEROSOLS Environmental Sciences & Ecology Environmental Sciences |
description |
Carbonaceous matter has an important impact on glacial retreat in the Tibetan Plateau, further affecting the water resource supply. However, the related studies on carbonaceous matter are still scarce in Geladaindong (GLDD) region, the source of the Yangtze River. Therefore, the concentration, source and variations of carbonaceous matter at Ganglongjiama (GLJM) glacier in GLDD region were investigated during the melting period in 2017, which could deepen our understanding on carbonaceous matter contribution to glacier melting. The results showed that dissolved organic carbon (DOC) concentration of snowpit samples (283 +/- 200 mu g/L) was much lower than that of precipitation samples (624 +/- 361 mu g/L), indicating that large parts of DOC could be rapidly leached from the snowpit during the melting process. In contrast, refractory black carbon (rBC) concentration measured by Single Particle Soot Photometer of snowpit samples (4.27 +/- 3.15 mu g/L) was much higher than that of precipitation samples (0.97 +/- 0.49 mu g/L). Similarly, DOC with high mass absorption cross-section measured at 365 nm value was also likely to enrich in snowpit during the melting process. In addition, it was found that both rBC and DOC with high light-absorbing ability began to leach from the snowpit when melting process became stronger. Therefore, rBC and DOC with high light-absorbing ability exhibited similar behavior during the melting process. Based on relationship among DOC, rBC and K+ in precipitation, the main source of carbonaceous matter in GLJM glacier was biomass burning during the study period. (c) 2019 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
format |
Report |
author |
Hu, Zhaofu Kang, Shichang He, Xiaobo Yan, Fangping Zhang, Yulan Chen, Pengfei Li, Xiaofei Gao, Shaopeng Li, Chaoliu |
author_facet |
Hu, Zhaofu Kang, Shichang He, Xiaobo Yan, Fangping Zhang, Yulan Chen, Pengfei Li, Xiaofei Gao, Shaopeng Li, Chaoliu |
author_sort |
Hu, Zhaofu |
title |
Carbonaceous matter in glacier at the headwaters of the Yangtze River: Concentration, sources and fractionation during the melting process |
title_short |
Carbonaceous matter in glacier at the headwaters of the Yangtze River: Concentration, sources and fractionation during the melting process |
title_full |
Carbonaceous matter in glacier at the headwaters of the Yangtze River: Concentration, sources and fractionation during the melting process |
title_fullStr |
Carbonaceous matter in glacier at the headwaters of the Yangtze River: Concentration, sources and fractionation during the melting process |
title_full_unstemmed |
Carbonaceous matter in glacier at the headwaters of the Yangtze River: Concentration, sources and fractionation during the melting process |
title_sort |
carbonaceous matter in glacier at the headwaters of the yangtze river: concentration, sources and fractionation during the melting process |
publisher |
SCIENCE PRESS |
publishDate |
2020 |
url |
http://ir.ieecas.cn/handle/361006/12987 http://ir.ieecas.cn/handle/361006/12988 https://doi.org/10.1016/j.jes.2019.08.001 |
genre |
ice core |
genre_facet |
ice core |
op_relation |
JOURNAL OF ENVIRONMENTAL SCIENCES http://ir.ieecas.cn/handle/361006/12987 http://ir.ieecas.cn/handle/361006/12988 doi:10.1016/j.jes.2019.08.001 |
op_doi |
https://doi.org/10.1016/j.jes.2019.08.001 |
container_title |
Journal of Environmental Sciences |
container_volume |
87 |
container_start_page |
389 |
op_container_end_page |
397 |
_version_ |
1768388763739750400 |