A new Himalayan ice core CH4 record: possible hints at the preindustrial latitudinal gradient
Two ice cores recovered from the Himalayan East Rongbuk (ER) Glacier on the northeast saddle of Mt. Qomolangma (Everest) (28°01' N, 86°58' E, 6518 m above sea level) give access to a tentative record of past Himalayan atmospheric mixing ratio of CH4 spanning the past 1200 yr. The major par...
Published in: | Climate of the Past |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2013
|
Subjects: | |
Online Access: | https://doi.org/10.5194/cp-9-2549-2013 http://www.clim-past.net/9/2549/2013/cp-9-2549-2013.pdf https://doaj.org/article/e7cebedc3f9a4014839460d217ac4f3f |
id |
fttriple:oai:gotriple.eu:oai:doaj.org/article:e7cebedc3f9a4014839460d217ac4f3f |
---|---|
record_format |
openpolar |
spelling |
fttriple:oai:gotriple.eu:oai:doaj.org/article:e7cebedc3f9a4014839460d217ac4f3f 2023-05-15T13:43:15+02:00 A new Himalayan ice core CH4 record: possible hints at the preindustrial latitudinal gradient S. Hou J. Chappellaz D. Raynaud V. Masson-Delmotte J. Jouzel P. Bousquet D. Hauglustaine 2013-11-01 https://doi.org/10.5194/cp-9-2549-2013 http://www.clim-past.net/9/2549/2013/cp-9-2549-2013.pdf https://doaj.org/article/e7cebedc3f9a4014839460d217ac4f3f en eng Copernicus Publications 1814-9324 1814-9332 doi:10.5194/cp-9-2549-2013 http://www.clim-past.net/9/2549/2013/cp-9-2549-2013.pdf https://doaj.org/article/e7cebedc3f9a4014839460d217ac4f3f undefined Climate of the Past, Vol 9, Iss 6, Pp 2549-2554 (2013) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2013 fttriple https://doi.org/10.5194/cp-9-2549-2013 2023-01-22T19:11:42Z Two ice cores recovered from the Himalayan East Rongbuk (ER) Glacier on the northeast saddle of Mt. Qomolangma (Everest) (28°01' N, 86°58' E, 6518 m above sea level) give access to a tentative record of past Himalayan atmospheric mixing ratio of CH4 spanning the past 1200 yr. The major part of the record is affected by artifacts probably due to in situ production. After selecting what may represent the true atmospheric mixing ratio, an average of 749 ± 25 ppbv of CH4 is estimated for the late preindustrial Holocene, which is ~ 36 ± 17 (~ 73 ± 18) ppbv higher than the atmospheric levels recorded in the Greenland (Antarctic) ice cores. A comparison of these new data with model simulations of the CH4 latitudinal gradient suggests either that the models do not get a correct balance between high and low latitude CH4 sources, or that the filtered CH4 profile from the ER cores remains biased by small artifacts. Article in Journal/Newspaper Antarc* Antarctic glacier Greenland ice core Unknown Antarctic Greenland Climate of the Past 9 6 2549 2554 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
geo envir |
spellingShingle |
geo envir S. Hou J. Chappellaz D. Raynaud V. Masson-Delmotte J. Jouzel P. Bousquet D. Hauglustaine A new Himalayan ice core CH4 record: possible hints at the preindustrial latitudinal gradient |
topic_facet |
geo envir |
description |
Two ice cores recovered from the Himalayan East Rongbuk (ER) Glacier on the northeast saddle of Mt. Qomolangma (Everest) (28°01' N, 86°58' E, 6518 m above sea level) give access to a tentative record of past Himalayan atmospheric mixing ratio of CH4 spanning the past 1200 yr. The major part of the record is affected by artifacts probably due to in situ production. After selecting what may represent the true atmospheric mixing ratio, an average of 749 ± 25 ppbv of CH4 is estimated for the late preindustrial Holocene, which is ~ 36 ± 17 (~ 73 ± 18) ppbv higher than the atmospheric levels recorded in the Greenland (Antarctic) ice cores. A comparison of these new data with model simulations of the CH4 latitudinal gradient suggests either that the models do not get a correct balance between high and low latitude CH4 sources, or that the filtered CH4 profile from the ER cores remains biased by small artifacts. |
format |
Article in Journal/Newspaper |
author |
S. Hou J. Chappellaz D. Raynaud V. Masson-Delmotte J. Jouzel P. Bousquet D. Hauglustaine |
author_facet |
S. Hou J. Chappellaz D. Raynaud V. Masson-Delmotte J. Jouzel P. Bousquet D. Hauglustaine |
author_sort |
S. Hou |
title |
A new Himalayan ice core CH4 record: possible hints at the preindustrial latitudinal gradient |
title_short |
A new Himalayan ice core CH4 record: possible hints at the preindustrial latitudinal gradient |
title_full |
A new Himalayan ice core CH4 record: possible hints at the preindustrial latitudinal gradient |
title_fullStr |
A new Himalayan ice core CH4 record: possible hints at the preindustrial latitudinal gradient |
title_full_unstemmed |
A new Himalayan ice core CH4 record: possible hints at the preindustrial latitudinal gradient |
title_sort |
new himalayan ice core ch4 record: possible hints at the preindustrial latitudinal gradient |
publisher |
Copernicus Publications |
publishDate |
2013 |
url |
https://doi.org/10.5194/cp-9-2549-2013 http://www.clim-past.net/9/2549/2013/cp-9-2549-2013.pdf https://doaj.org/article/e7cebedc3f9a4014839460d217ac4f3f |
geographic |
Antarctic Greenland |
geographic_facet |
Antarctic Greenland |
genre |
Antarc* Antarctic glacier Greenland ice core |
genre_facet |
Antarc* Antarctic glacier Greenland ice core |
op_source |
Climate of the Past, Vol 9, Iss 6, Pp 2549-2554 (2013) |
op_relation |
1814-9324 1814-9332 doi:10.5194/cp-9-2549-2013 http://www.clim-past.net/9/2549/2013/cp-9-2549-2013.pdf https://doaj.org/article/e7cebedc3f9a4014839460d217ac4f3f |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/cp-9-2549-2013 |
container_title |
Climate of the Past |
container_volume |
9 |
container_issue |
6 |
container_start_page |
2549 |
op_container_end_page |
2554 |
_version_ |
1766186269281353728 |