A sublimation technique for high-precision d13C on CO2 and CO2 mixing ratio from air trapped in deep ice cores
Glacier ice represents the only direct archive to retrieve information about the composition of the paleoatmosphere. During the glacials the CO2 concentration was about 90 ppmv lower than during the warm interglacials. The task to quantitatively understand the processes behind these observed CO2 cha...
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Format: | Doctoral or Postdoctoral Thesis |
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Universität Bremen
2006
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Online Access: | https://media.suub.uni-bremen.de/handle/elib/2315 https://nbn-resolving.org/urn:nbn:de:gbv:46-diss000105683 |
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ftsubbremen:oai:media.suub.uni-bremen.de:Publications/elib/2315 2023-05-15T13:42:30+02:00 A sublimation technique for high-precision d13C on CO2 and CO2 mixing ratio from air trapped in deep ice cores Eine Sublimationstechnik für die hochpräzise d13C(CO2)-Analyse und das CO2-Mischungsverhältnis an Lufteinschlüssen tiefer Eiskerne Schmitt, Jochen Miller, Heinz Hinrichs, Kai-Uwe 2006-12-21 application/pdf https://media.suub.uni-bremen.de/handle/elib/2315 https://nbn-resolving.org/urn:nbn:de:gbv:46-diss000105683 eng eng Universität Bremen FB5 Geowissenschaften https://media.suub.uni-bremen.de/handle/elib/2315 urn:nbn:de:gbv:46-diss000105683 info:eu-repo/semantics/openAccess Bitte wählen Sie eine Lizenz aus: (Unsere Empfehlung: CC-BY) CC-BY sublimation IRMS continuous flow GC fractionation isotopes 13C stable carbon isotopes ice core glacier Antarctica CO2 glacial atmosphere clathrates reconstruction carbon cycle 80 ddc:80 Dissertation doctoralThesis 2006 ftsubbremen 2022-11-09T07:09:46Z Glacier ice represents the only direct archive to retrieve information about the composition of the paleoatmosphere. During the glacials the CO2 concentration was about 90 ppmv lower than during the warm interglacials. The task to quantitatively understand the processes behind these observed CO2 changes is of outstanding importance not only for the paleo climate community, but also to predict the CO2 concentration in the future. One crucial key to unravel the open questions about the coupling of atmospheric CO2 with the dynamics of the global carbon cycle is the stable carbon isotope ratio of CO2 (d13C). This thesis introduces a new analytical method allowing a quantitative extraction of air from small ice core samples coupled to a high precision gas chromatography-isotope ratio mass spectrometry system to determine d13C. Additionally, this technique precisely determines the CO2 concentration on the same sample. This new technique makes it possible to surmount major analytical limitations and shortcomings encountered during previous studies. Doctoral or Postdoctoral Thesis Antarc* Antarctica ice core Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen) |
institution |
Open Polar |
collection |
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen) |
op_collection_id |
ftsubbremen |
language |
English |
topic |
sublimation IRMS continuous flow GC fractionation isotopes 13C stable carbon isotopes ice core glacier Antarctica CO2 glacial atmosphere clathrates reconstruction carbon cycle 80 ddc:80 |
spellingShingle |
sublimation IRMS continuous flow GC fractionation isotopes 13C stable carbon isotopes ice core glacier Antarctica CO2 glacial atmosphere clathrates reconstruction carbon cycle 80 ddc:80 Schmitt, Jochen A sublimation technique for high-precision d13C on CO2 and CO2 mixing ratio from air trapped in deep ice cores |
topic_facet |
sublimation IRMS continuous flow GC fractionation isotopes 13C stable carbon isotopes ice core glacier Antarctica CO2 glacial atmosphere clathrates reconstruction carbon cycle 80 ddc:80 |
description |
Glacier ice represents the only direct archive to retrieve information about the composition of the paleoatmosphere. During the glacials the CO2 concentration was about 90 ppmv lower than during the warm interglacials. The task to quantitatively understand the processes behind these observed CO2 changes is of outstanding importance not only for the paleo climate community, but also to predict the CO2 concentration in the future. One crucial key to unravel the open questions about the coupling of atmospheric CO2 with the dynamics of the global carbon cycle is the stable carbon isotope ratio of CO2 (d13C). This thesis introduces a new analytical method allowing a quantitative extraction of air from small ice core samples coupled to a high precision gas chromatography-isotope ratio mass spectrometry system to determine d13C. Additionally, this technique precisely determines the CO2 concentration on the same sample. This new technique makes it possible to surmount major analytical limitations and shortcomings encountered during previous studies. |
author2 |
Miller, Heinz Hinrichs, Kai-Uwe |
format |
Doctoral or Postdoctoral Thesis |
author |
Schmitt, Jochen |
author_facet |
Schmitt, Jochen |
author_sort |
Schmitt, Jochen |
title |
A sublimation technique for high-precision d13C on CO2 and CO2 mixing ratio from air trapped in deep ice cores |
title_short |
A sublimation technique for high-precision d13C on CO2 and CO2 mixing ratio from air trapped in deep ice cores |
title_full |
A sublimation technique for high-precision d13C on CO2 and CO2 mixing ratio from air trapped in deep ice cores |
title_fullStr |
A sublimation technique for high-precision d13C on CO2 and CO2 mixing ratio from air trapped in deep ice cores |
title_full_unstemmed |
A sublimation technique for high-precision d13C on CO2 and CO2 mixing ratio from air trapped in deep ice cores |
title_sort |
sublimation technique for high-precision d13c on co2 and co2 mixing ratio from air trapped in deep ice cores |
publisher |
Universität Bremen |
publishDate |
2006 |
url |
https://media.suub.uni-bremen.de/handle/elib/2315 https://nbn-resolving.org/urn:nbn:de:gbv:46-diss000105683 |
genre |
Antarc* Antarctica ice core |
genre_facet |
Antarc* Antarctica ice core |
op_relation |
https://media.suub.uni-bremen.de/handle/elib/2315 urn:nbn:de:gbv:46-diss000105683 |
op_rights |
info:eu-repo/semantics/openAccess Bitte wählen Sie eine Lizenz aus: (Unsere Empfehlung: CC-BY) |
op_rightsnorm |
CC-BY |
_version_ |
1766168700126232576 |