Measured black carbon deposition on the Sierra Nevada snow pack and implication for snow pack retreat
Modeling studies show that the darkening of snow and ice by black carbon deposition is a major factor for the rapid disappearance of arctic sea ice, mountain glaciers and snow packs. This study provides one of the first direct measurements for the efficient removal of black carbon from the atmospher...
Published in: | Atmospheric Chemistry and Physics |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2010
|
Subjects: | |
Online Access: | https://doi.org/10.5194/acp-10-7505-2010 https://doaj.org/article/bff0c9dce19d4f0ba7679dff7e17352b |
id |
ftdoajarticles:oai:doaj.org/article:bff0c9dce19d4f0ba7679dff7e17352b |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:bff0c9dce19d4f0ba7679dff7e17352b 2023-05-15T15:08:48+02:00 Measured black carbon deposition on the Sierra Nevada snow pack and implication for snow pack retreat O. L. Hadley C. E. Corrigan T. W. Kirchstetter S. S. Cliff V. Ramanathan 2010-08-01T00:00:00Z https://doi.org/10.5194/acp-10-7505-2010 https://doaj.org/article/bff0c9dce19d4f0ba7679dff7e17352b EN eng Copernicus Publications http://www.atmos-chem-phys.net/10/7505/2010/acp-10-7505-2010.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-10-7505-2010 1680-7316 1680-7324 https://doaj.org/article/bff0c9dce19d4f0ba7679dff7e17352b Atmospheric Chemistry and Physics, Vol 10, Iss 15, Pp 7505-7513 (2010) Physics QC1-999 Chemistry QD1-999 article 2010 ftdoajarticles https://doi.org/10.5194/acp-10-7505-2010 2022-12-30T22:26:47Z Modeling studies show that the darkening of snow and ice by black carbon deposition is a major factor for the rapid disappearance of arctic sea ice, mountain glaciers and snow packs. This study provides one of the first direct measurements for the efficient removal of black carbon from the atmosphere by snow and its subsequent deposition to the snow packs of California. The early melting of the snow packs in the Sierras is one of the contributing factors to the severe water problems in California. BC concentrations in falling snow were measured at two mountain locations and in rain at a coastal site. All three stations reveal large BC concentrations in precipitation, ranging from 1.7 ng/g to 12.9 ng/g. The BC concentrations in the air after the snow fall were negligible suggesting an extremely efficient removal of BC by snow. The data suggest that below cloud scavenging, rather than ice nuclei, was the dominant source of BC in the snow. A five-year comparison of BC, dust, and total fine aerosol mass concentrations at multiple sites reveals that the measurements made at the sampling sites were representative of large scale deposition in the Sierra Nevada. The relative concentration of iron and calcium in the mountain aerosol indicates that one-quarter to one-third of the BC may have been transported from Asia. Article in Journal/Newspaper Arctic black carbon Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Atmospheric Chemistry and Physics 10 15 7505 7513 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 O. L. Hadley C. E. Corrigan T. W. Kirchstetter S. S. Cliff V. Ramanathan Measured black carbon deposition on the Sierra Nevada snow pack and implication for snow pack retreat |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
Modeling studies show that the darkening of snow and ice by black carbon deposition is a major factor for the rapid disappearance of arctic sea ice, mountain glaciers and snow packs. This study provides one of the first direct measurements for the efficient removal of black carbon from the atmosphere by snow and its subsequent deposition to the snow packs of California. The early melting of the snow packs in the Sierras is one of the contributing factors to the severe water problems in California. BC concentrations in falling snow were measured at two mountain locations and in rain at a coastal site. All three stations reveal large BC concentrations in precipitation, ranging from 1.7 ng/g to 12.9 ng/g. The BC concentrations in the air after the snow fall were negligible suggesting an extremely efficient removal of BC by snow. The data suggest that below cloud scavenging, rather than ice nuclei, was the dominant source of BC in the snow. A five-year comparison of BC, dust, and total fine aerosol mass concentrations at multiple sites reveals that the measurements made at the sampling sites were representative of large scale deposition in the Sierra Nevada. The relative concentration of iron and calcium in the mountain aerosol indicates that one-quarter to one-third of the BC may have been transported from Asia. |
format |
Article in Journal/Newspaper |
author |
O. L. Hadley C. E. Corrigan T. W. Kirchstetter S. S. Cliff V. Ramanathan |
author_facet |
O. L. Hadley C. E. Corrigan T. W. Kirchstetter S. S. Cliff V. Ramanathan |
author_sort |
O. L. Hadley |
title |
Measured black carbon deposition on the Sierra Nevada snow pack and implication for snow pack retreat |
title_short |
Measured black carbon deposition on the Sierra Nevada snow pack and implication for snow pack retreat |
title_full |
Measured black carbon deposition on the Sierra Nevada snow pack and implication for snow pack retreat |
title_fullStr |
Measured black carbon deposition on the Sierra Nevada snow pack and implication for snow pack retreat |
title_full_unstemmed |
Measured black carbon deposition on the Sierra Nevada snow pack and implication for snow pack retreat |
title_sort |
measured black carbon deposition on the sierra nevada snow pack and implication for snow pack retreat |
publisher |
Copernicus Publications |
publishDate |
2010 |
url |
https://doi.org/10.5194/acp-10-7505-2010 https://doaj.org/article/bff0c9dce19d4f0ba7679dff7e17352b |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic black carbon Sea ice |
genre_facet |
Arctic black carbon Sea ice |
op_source |
Atmospheric Chemistry and Physics, Vol 10, Iss 15, Pp 7505-7513 (2010) |
op_relation |
http://www.atmos-chem-phys.net/10/7505/2010/acp-10-7505-2010.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-10-7505-2010 1680-7316 1680-7324 https://doaj.org/article/bff0c9dce19d4f0ba7679dff7e17352b |
op_doi |
https://doi.org/10.5194/acp-10-7505-2010 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
10 |
container_issue |
15 |
container_start_page |
7505 |
op_container_end_page |
7513 |
_version_ |
1766340092276768768 |