Seasonal variations in hydrogen peroxide in polar ice cores
Hydrogen peroxide is present in polar snow and ice in remarkably high concentrations. With values up to 300 ppb, H2O2 is one of the most concentrated impurities in polar ice. We present a continuous H2O2 firn record from Siple Station (Antarctica); it covers the last 83 years with a resolution of 10...
Main Authors: | , |
---|---|
Format: | Conference Object |
Language: | unknown |
Published: |
International Glaciological Society
1988
|
Subjects: | |
Online Access: | https://dx.doi.org/10.48350/158761 https://boris.unibe.ch/158761/ |
id |
ftdatacite:10.48350/158761 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.48350/158761 2023-05-15T13:47:04+02:00 Seasonal variations in hydrogen peroxide in polar ice cores Sigg, Andreas Neftel, Albrecht 1988 https://dx.doi.org/10.48350/158761 https://boris.unibe.ch/158761/ unknown International Glaciological Society restricted access publisher holds copyright http://purl.org/coar/access_right/c_16ec 530 Physics Text ScholarlyArticle article-journal conference object 1988 ftdatacite https://doi.org/10.48350/158761 2021-11-05T12:55:41Z Hydrogen peroxide is present in polar snow and ice in remarkably high concentrations. With values up to 300 ppb, H2O2 is one of the most concentrated impurities in polar ice. We present a continuous H2O2 firn record from Siple Station (Antarctica); it covers the last 83 years with a resolution of 10–20 samples per year. A very strong seasonality is present in this record. This seasonality is also observed in a Greenland ice core from Dye 3, where we have continuously measured the top 10 m with the same resolution. The maximum concentrations correspond to summer snow layers and can exceed winter snow concentrations by a factor of 10. This property makes H2O2 a useful tracer for dating suitable cores by counting annual layers. The different steps needed to relate the atmospheric to the ice–core H2O2 concentration are discussed. As with isotopic tracers, diffusion in the firn smooths the original H2O2 concentration profile. Conference Object Antarc* Antarctica Dye 3 Dye-3 Greenland Greenland ice core ice core DataCite Metadata Store (German National Library of Science and Technology) Greenland Siple ENVELOPE(-83.917,-83.917,-75.917,-75.917) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
530 Physics |
spellingShingle |
530 Physics Sigg, Andreas Neftel, Albrecht Seasonal variations in hydrogen peroxide in polar ice cores |
topic_facet |
530 Physics |
description |
Hydrogen peroxide is present in polar snow and ice in remarkably high concentrations. With values up to 300 ppb, H2O2 is one of the most concentrated impurities in polar ice. We present a continuous H2O2 firn record from Siple Station (Antarctica); it covers the last 83 years with a resolution of 10–20 samples per year. A very strong seasonality is present in this record. This seasonality is also observed in a Greenland ice core from Dye 3, where we have continuously measured the top 10 m with the same resolution. The maximum concentrations correspond to summer snow layers and can exceed winter snow concentrations by a factor of 10. This property makes H2O2 a useful tracer for dating suitable cores by counting annual layers. The different steps needed to relate the atmospheric to the ice–core H2O2 concentration are discussed. As with isotopic tracers, diffusion in the firn smooths the original H2O2 concentration profile. |
format |
Conference Object |
author |
Sigg, Andreas Neftel, Albrecht |
author_facet |
Sigg, Andreas Neftel, Albrecht |
author_sort |
Sigg, Andreas |
title |
Seasonal variations in hydrogen peroxide in polar ice cores |
title_short |
Seasonal variations in hydrogen peroxide in polar ice cores |
title_full |
Seasonal variations in hydrogen peroxide in polar ice cores |
title_fullStr |
Seasonal variations in hydrogen peroxide in polar ice cores |
title_full_unstemmed |
Seasonal variations in hydrogen peroxide in polar ice cores |
title_sort |
seasonal variations in hydrogen peroxide in polar ice cores |
publisher |
International Glaciological Society |
publishDate |
1988 |
url |
https://dx.doi.org/10.48350/158761 https://boris.unibe.ch/158761/ |
long_lat |
ENVELOPE(-83.917,-83.917,-75.917,-75.917) |
geographic |
Greenland Siple |
geographic_facet |
Greenland Siple |
genre |
Antarc* Antarctica Dye 3 Dye-3 Greenland Greenland ice core ice core |
genre_facet |
Antarc* Antarctica Dye 3 Dye-3 Greenland Greenland ice core ice core |
op_rights |
restricted access publisher holds copyright http://purl.org/coar/access_right/c_16ec |
op_doi |
https://doi.org/10.48350/158761 |
_version_ |
1766246266580238336 |