Understanding the drivers for the 20th century change of hydrogen peroxide in Antarctic ice-cores
Observations and model simulations of an Antarctic ice-core record of hydrogen peroxide during the last ~150 years are analyzed. The observations indicate a relative increase in hydrogen peroxide by approximately 50% since 1900, with most of the change since the early 1970s. Using two model simulati...
Published in: | Geophysical Research Letters |
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Format: | Article in Journal/Newspaper |
Language: | English |
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American Meteorological Society
2011
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Online Access: | http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-705 https://doi.org/10.1029/2010GL045992 |
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ftncar:oai:drupal-site.org:articles_10879 2023-09-05T13:14:59+02:00 Understanding the drivers for the 20th century change of hydrogen peroxide in Antarctic ice-cores Lamarque, Jean-François (author) McConnell, J. (author) Shindell, D. (author) Orlando, John (author) Tyndall, Geoffrey (author) 2011-02-25 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-705 https://doi.org/10.1029/2010GL045992 en eng American Meteorological Society Geophysical Research Letters http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-705 doi:10.1029/2010GL045992 wos: 000287808400001 ark:/85065/d7319wgv Copyright 2011 American Geophysical Union. Text article 2011 ftncar https://doi.org/10.1029/2010GL045992 2023-08-14T18:38:06Z Observations and model simulations of an Antarctic ice-core record of hydrogen peroxide during the last ~150 years are analyzed. The observations indicate a relative increase in hydrogen peroxide by approximately 50% since 1900, with most of the change since the early 1970s. Using two model simulations spanning 1850 to present, we show that the modeled relative change in annual-mean surface hydrogen peroxide parallels the equivalent signal from the ice core record. In addition, we show that this relative change can be explained by the relative changes in tropospheric ozone concentration and mostly in ozone photolysis rates ( J(O ¹D)). The simulated signal is therefore intimately related to the changes in stratospheric ozone associated with increases in chlorofluorocarbons; this is further demonstrated using total ozone column observations and the associated observed change in ice-core hydrogen peroxide. Article in Journal/Newspaper Antarc* Antarctic ice core OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Antarctic Geophysical Research Letters 38 4 n/a n/a |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
Observations and model simulations of an Antarctic ice-core record of hydrogen peroxide during the last ~150 years are analyzed. The observations indicate a relative increase in hydrogen peroxide by approximately 50% since 1900, with most of the change since the early 1970s. Using two model simulations spanning 1850 to present, we show that the modeled relative change in annual-mean surface hydrogen peroxide parallels the equivalent signal from the ice core record. In addition, we show that this relative change can be explained by the relative changes in tropospheric ozone concentration and mostly in ozone photolysis rates ( J(O ¹D)). The simulated signal is therefore intimately related to the changes in stratospheric ozone associated with increases in chlorofluorocarbons; this is further demonstrated using total ozone column observations and the associated observed change in ice-core hydrogen peroxide. |
author2 |
Lamarque, Jean-François (author) McConnell, J. (author) Shindell, D. (author) Orlando, John (author) Tyndall, Geoffrey (author) |
format |
Article in Journal/Newspaper |
title |
Understanding the drivers for the 20th century change of hydrogen peroxide in Antarctic ice-cores |
spellingShingle |
Understanding the drivers for the 20th century change of hydrogen peroxide in Antarctic ice-cores |
title_short |
Understanding the drivers for the 20th century change of hydrogen peroxide in Antarctic ice-cores |
title_full |
Understanding the drivers for the 20th century change of hydrogen peroxide in Antarctic ice-cores |
title_fullStr |
Understanding the drivers for the 20th century change of hydrogen peroxide in Antarctic ice-cores |
title_full_unstemmed |
Understanding the drivers for the 20th century change of hydrogen peroxide in Antarctic ice-cores |
title_sort |
understanding the drivers for the 20th century change of hydrogen peroxide in antarctic ice-cores |
publisher |
American Meteorological Society |
publishDate |
2011 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-705 https://doi.org/10.1029/2010GL045992 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic ice core |
genre_facet |
Antarc* Antarctic ice core |
op_relation |
Geophysical Research Letters http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-705 doi:10.1029/2010GL045992 wos: 000287808400001 ark:/85065/d7319wgv |
op_rights |
Copyright 2011 American Geophysical Union. |
op_doi |
https://doi.org/10.1029/2010GL045992 |
container_title |
Geophysical Research Letters |
container_volume |
38 |
container_issue |
4 |
container_start_page |
n/a |
op_container_end_page |
n/a |
_version_ |
1776196845366673408 |