Simultaneous measurements of CO2, CH4, and N2O in air extracted by sublimation from Antarctica ice cores: Confirmation of the data obtained using other extraction techniques
A sublimation technique has been developed to extract air samples from polar ice cores for subsequent simultaneous measurement of several trace gases by frequency-modulated tunable diode laser absorption spectroscopy. This extraction and analysis technique is shown to be suitable as an extraction me...
Main Authors: | , , |
---|---|
Format: | Text |
Language: | unknown |
Published: |
American Geophysical Union
1998
|
Subjects: | |
Online Access: | https://dx.doi.org/10.48350/158738 https://boris.unibe.ch/158738/ |
id |
ftdatacite:10.48350/158738 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.48350/158738 2023-05-15T13:47:04+02:00 Simultaneous measurements of CO2, CH4, and N2O in air extracted by sublimation from Antarctica ice cores: Confirmation of the data obtained using other extraction techniques Güllük, T. Slemr, F. Stauffer, B. 1998 https://dx.doi.org/10.48350/158738 https://boris.unibe.ch/158738/ unknown American Geophysical Union open access publisher holds copyright http://purl.org/coar/access_right/c_abf2 530 Physics Text article-journal journal article ScholarlyArticle 1998 ftdatacite https://doi.org/10.48350/158738 2021-11-05T12:55:41Z A sublimation technique has been developed to extract air samples from polar ice cores for subsequent simultaneous measurement of several trace gases by frequency-modulated tunable diode laser absorption spectroscopy. This extraction and analysis technique is shown to be suitable as an extraction method for the determination of concentrations of the greenhouse gases CO2, CH4, and N2O in air samples of ∼1–5 cm3 recovered from ice samples of 10–50 g. Air samples from the Siple ice core have been analyzed covering the period between 1772 and 1973. In addition, a few samples from two different ice cores from Vostok station have been analyzed. Our results are in a good agreement with results obtained by other researchers using melting and crushing extraction techniques. This agreement indicates that processes connected with the formation of clathrates in ice under high pressure at greater depths and their destruction after drilling are not affecting the CO2, CH4, and N2O measurements significantly. Text Antarc* Antarctica ice core DataCite Metadata Store (German National Library of Science and Technology) Siple ENVELOPE(-83.917,-83.917,-75.917,-75.917) Vostok Station ENVELOPE(106.837,106.837,-78.464,-78.464) |
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 Güllük, T. Slemr, F. Stauffer, B. Simultaneous measurements of CO2, CH4, and N2O in air extracted by sublimation from Antarctica ice cores: Confirmation of the data obtained using other extraction techniques |
topic_facet |
530 Physics |
description |
A sublimation technique has been developed to extract air samples from polar ice cores for subsequent simultaneous measurement of several trace gases by frequency-modulated tunable diode laser absorption spectroscopy. This extraction and analysis technique is shown to be suitable as an extraction method for the determination of concentrations of the greenhouse gases CO2, CH4, and N2O in air samples of ∼1–5 cm3 recovered from ice samples of 10–50 g. Air samples from the Siple ice core have been analyzed covering the period between 1772 and 1973. In addition, a few samples from two different ice cores from Vostok station have been analyzed. Our results are in a good agreement with results obtained by other researchers using melting and crushing extraction techniques. This agreement indicates that processes connected with the formation of clathrates in ice under high pressure at greater depths and their destruction after drilling are not affecting the CO2, CH4, and N2O measurements significantly. |
format |
Text |
author |
Güllük, T. Slemr, F. Stauffer, B. |
author_facet |
Güllük, T. Slemr, F. Stauffer, B. |
author_sort |
Güllük, T. |
title |
Simultaneous measurements of CO2, CH4, and N2O in air extracted by sublimation from Antarctica ice cores: Confirmation of the data obtained using other extraction techniques |
title_short |
Simultaneous measurements of CO2, CH4, and N2O in air extracted by sublimation from Antarctica ice cores: Confirmation of the data obtained using other extraction techniques |
title_full |
Simultaneous measurements of CO2, CH4, and N2O in air extracted by sublimation from Antarctica ice cores: Confirmation of the data obtained using other extraction techniques |
title_fullStr |
Simultaneous measurements of CO2, CH4, and N2O in air extracted by sublimation from Antarctica ice cores: Confirmation of the data obtained using other extraction techniques |
title_full_unstemmed |
Simultaneous measurements of CO2, CH4, and N2O in air extracted by sublimation from Antarctica ice cores: Confirmation of the data obtained using other extraction techniques |
title_sort |
simultaneous measurements of co2, ch4, and n2o in air extracted by sublimation from antarctica ice cores: confirmation of the data obtained using other extraction techniques |
publisher |
American Geophysical Union |
publishDate |
1998 |
url |
https://dx.doi.org/10.48350/158738 https://boris.unibe.ch/158738/ |
long_lat |
ENVELOPE(-83.917,-83.917,-75.917,-75.917) ENVELOPE(106.837,106.837,-78.464,-78.464) |
geographic |
Siple Vostok Station |
geographic_facet |
Siple Vostok Station |
genre |
Antarc* Antarctica ice core |
genre_facet |
Antarc* Antarctica ice core |
op_rights |
open access publisher holds copyright http://purl.org/coar/access_right/c_abf2 |
op_doi |
https://doi.org/10.48350/158738 |
_version_ |
1766246265750814720 |