Recent increase in black carbon concentrations from a Mt. Everest ice core spanning 1860–2000 AD
A Mt. Everest ice core spanning 1860–2000 AD and analyzed at high resolution for black carbon (BC) using a Single Particle Soot Photometer (SP2) demonstrates strong seasonality, with peak concentrations during the winter-spring, and low concentrations during the summer monsoon season. BC concentra...
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ftmaineuniv:oai:digitalcommons.library.umaine.edu:climate_facpub-1003 2024-09-15T18:11:53+00:00 Recent increase in black carbon concentrations from a Mt. Everest ice core spanning 1860–2000 AD Kaspari, S. D. Schwikowski, M. Gysel, M. Flanner, M. G. Shichang, Kang Hou, S. Mayewski, Paul A. 2011-02-01T08:00:00Z application/pdf https://digitalcommons.library.umaine.edu/climate_facpub/4 https://doi.org/10.1029/2010GL046096 https://digitalcommons.library.umaine.edu/context/climate_facpub/article/1003/viewcontent/2010GL046096.pdf unknown DigitalCommons@UMaine https://digitalcommons.library.umaine.edu/climate_facpub/4 doi:10.1029/2010GL046096 https://digitalcommons.library.umaine.edu/context/climate_facpub/article/1003/viewcontent/2010GL046096.pdf This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s). Climate Change Institute Faculty Scholarship black carbon ice core Himalaya dust Earth Sciences Glaciology text 2011 ftmaineuniv https://doi.org/10.1029/2010GL046096 2024-07-24T05:38:40Z A Mt. Everest ice core spanning 1860–2000 AD and analyzed at high resolution for black carbon (BC) using a Single Particle Soot Photometer (SP2) demonstrates strong seasonality, with peak concentrations during the winter-spring, and low concentrations during the summer monsoon season. BC concentrations from 1975–2000 relative to 1860–1975 have increased approximately threefold, indicating that BC from anthropogenic sources is being transported to high elevation regions of the Himalaya. The timing of the increase in BC is consistent with BC emission inventory data from South Asia and the Middle East, however since 1990 the ice core BC record does not indicate continually increasing BC concentrations. The Everest BC and dust records provide information about absorbing impurities that can contribute to glacier melt by reducing the albedo of snow and ice. There is no increasing trend in dust concentrations since 1860, and estimated surface radiative forcing due to BC in snow exceeds that of dust in snow. This suggests that a reduction in BC emissions may be an effective means to reduce the effect of absorbing impurities on snow albedo and melt, which affects Himalayan glaciers and the availability of water resources in major Asian rivers. Text ice core The University of Maine: DigitalCommons@UMaine Geophysical Research Letters 38 4 n/a n/a |
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Open Polar |
collection |
The University of Maine: DigitalCommons@UMaine |
op_collection_id |
ftmaineuniv |
language |
unknown |
topic |
black carbon ice core Himalaya dust Earth Sciences Glaciology |
spellingShingle |
black carbon ice core Himalaya dust Earth Sciences Glaciology Kaspari, S. D. Schwikowski, M. Gysel, M. Flanner, M. G. Shichang, Kang Hou, S. Mayewski, Paul A. Recent increase in black carbon concentrations from a Mt. Everest ice core spanning 1860–2000 AD |
topic_facet |
black carbon ice core Himalaya dust Earth Sciences Glaciology |
description |
A Mt. Everest ice core spanning 1860–2000 AD and analyzed at high resolution for black carbon (BC) using a Single Particle Soot Photometer (SP2) demonstrates strong seasonality, with peak concentrations during the winter-spring, and low concentrations during the summer monsoon season. BC concentrations from 1975–2000 relative to 1860–1975 have increased approximately threefold, indicating that BC from anthropogenic sources is being transported to high elevation regions of the Himalaya. The timing of the increase in BC is consistent with BC emission inventory data from South Asia and the Middle East, however since 1990 the ice core BC record does not indicate continually increasing BC concentrations. The Everest BC and dust records provide information about absorbing impurities that can contribute to glacier melt by reducing the albedo of snow and ice. There is no increasing trend in dust concentrations since 1860, and estimated surface radiative forcing due to BC in snow exceeds that of dust in snow. This suggests that a reduction in BC emissions may be an effective means to reduce the effect of absorbing impurities on snow albedo and melt, which affects Himalayan glaciers and the availability of water resources in major Asian rivers. |
format |
Text |
author |
Kaspari, S. D. Schwikowski, M. Gysel, M. Flanner, M. G. Shichang, Kang Hou, S. Mayewski, Paul A. |
author_facet |
Kaspari, S. D. Schwikowski, M. Gysel, M. Flanner, M. G. Shichang, Kang Hou, S. Mayewski, Paul A. |
author_sort |
Kaspari, S. D. |
title |
Recent increase in black carbon concentrations from a Mt. Everest ice core spanning 1860–2000 AD |
title_short |
Recent increase in black carbon concentrations from a Mt. Everest ice core spanning 1860–2000 AD |
title_full |
Recent increase in black carbon concentrations from a Mt. Everest ice core spanning 1860–2000 AD |
title_fullStr |
Recent increase in black carbon concentrations from a Mt. Everest ice core spanning 1860–2000 AD |
title_full_unstemmed |
Recent increase in black carbon concentrations from a Mt. Everest ice core spanning 1860–2000 AD |
title_sort |
recent increase in black carbon concentrations from a mt. everest ice core spanning 1860–2000 ad |
publisher |
DigitalCommons@UMaine |
publishDate |
2011 |
url |
https://digitalcommons.library.umaine.edu/climate_facpub/4 https://doi.org/10.1029/2010GL046096 https://digitalcommons.library.umaine.edu/context/climate_facpub/article/1003/viewcontent/2010GL046096.pdf |
genre |
ice core |
genre_facet |
ice core |
op_source |
Climate Change Institute Faculty Scholarship |
op_relation |
https://digitalcommons.library.umaine.edu/climate_facpub/4 doi:10.1029/2010GL046096 https://digitalcommons.library.umaine.edu/context/climate_facpub/article/1003/viewcontent/2010GL046096.pdf |
op_rights |
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s). |
op_doi |
https://doi.org/10.1029/2010GL046096 |
container_title |
Geophysical Research Letters |
container_volume |
38 |
container_issue |
4 |
container_start_page |
n/a |
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n/a |
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1810449454389526528 |