Nitrous oxide and methane variations covering the last 100,000 years: Insight into climatic and environmental processes
This year, another record-breaking hot and dry summer in large parts of Europe has once more caught the attention of the public and raised questions about climate change and global warming. The evidence is growing that human activities affect the climate system, primarily through the emission of gre...
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ftunivbern:oai:boris.unibe.ch:192466 2024-06-09T07:39:11+00:00 Nitrous oxide and methane variations covering the last 100,000 years: Insight into climatic and environmental processes Flückiger, Jacqueline Stauffer, B. Stocker, T. F. 2003 application/pdf https://boris.unibe.ch/192466/1/flueckiger03phd.pdf https://boris.unibe.ch/192466/ eng eng https://boris.unibe.ch/192466/ info:eu-repo/semantics/restrictedAccess Flückiger, Jacqueline (2003). Nitrous oxide and methane variations covering the last 100,000 years: Insight into climatic and environmental processes (Unpublished). (Dissertation, Universität Bern, Philosophisch–naturwissenschaftliche Fakultät, Physikalisches Institut, Abteilung für Klima– und Umweltphysik) 530 Physics info:eu-repo/semantics/doctoralThesis info:eu-repo/semantics/draft NonPeerReviewed 2003 ftunivbern 2024-05-14T23:41:05Z This year, another record-breaking hot and dry summer in large parts of Europe has once more caught the attention of the public and raised questions about climate change and global warming. The evidence is growing that human activities affect the climate system, primarily through the emission of greenhouse gases and aerosols, resulting in significant warming observed over the last century [IPCC, 2001]. In the discussion of climate change, records of climate variations in the past play a crucial role for several reasons. First, paleodata are used to study mechanisms and feedbacks operating in the climate system. Second, attribution of climate change to anthropogenic causes relies on the central finding that the observed trends are unusual. Here, reconstructions of the past climate provide insight into the range of natural climate variability. Third, the simulation of climate variations in the past and the validation with data remain one of the harshest test for the climate models that are used to predict future climate. And fourth, quantifying the effect of anthropogenic emissions of greenhouse gases on the climate requires precise knowledge of the global biogeochemical cycles. The reconstruction of atmospheric greenhouse gas variations in the past offers a unique opportunity to study the key biogeochemical processes. Climate change leaves its traces in a variety of archives, among them marine and lake sediments, tree rings, stalagmites, corals, and others. But many indicators record climate indirectly and/or reflect local as well as large-scale changes. Greenhouse gases are well-mixed over the Earth, reflect large-scale or global changes, and thus are exceptional in this respect. The large ice sheets provide an archive of ancient air trapped in small air bubbles that can be measured directly. Deep ice core drillings in Greenland and Antarctica have provided an often undisturbed record of greenhouse gas concentrations in the past. While atmospheric carbon dioxide (CO2) and methane (CH4) have been reconstructed ... Doctoral or Postdoctoral Thesis Antarc* Antarctica Greenland ice core BORIS (Bern Open Repository and Information System, University of Bern) Greenland |
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BORIS (Bern Open Repository and Information System, University of Bern) |
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ftunivbern |
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English |
topic |
530 Physics |
spellingShingle |
530 Physics Flückiger, Jacqueline Nitrous oxide and methane variations covering the last 100,000 years: Insight into climatic and environmental processes |
topic_facet |
530 Physics |
description |
This year, another record-breaking hot and dry summer in large parts of Europe has once more caught the attention of the public and raised questions about climate change and global warming. The evidence is growing that human activities affect the climate system, primarily through the emission of greenhouse gases and aerosols, resulting in significant warming observed over the last century [IPCC, 2001]. In the discussion of climate change, records of climate variations in the past play a crucial role for several reasons. First, paleodata are used to study mechanisms and feedbacks operating in the climate system. Second, attribution of climate change to anthropogenic causes relies on the central finding that the observed trends are unusual. Here, reconstructions of the past climate provide insight into the range of natural climate variability. Third, the simulation of climate variations in the past and the validation with data remain one of the harshest test for the climate models that are used to predict future climate. And fourth, quantifying the effect of anthropogenic emissions of greenhouse gases on the climate requires precise knowledge of the global biogeochemical cycles. The reconstruction of atmospheric greenhouse gas variations in the past offers a unique opportunity to study the key biogeochemical processes. Climate change leaves its traces in a variety of archives, among them marine and lake sediments, tree rings, stalagmites, corals, and others. But many indicators record climate indirectly and/or reflect local as well as large-scale changes. Greenhouse gases are well-mixed over the Earth, reflect large-scale or global changes, and thus are exceptional in this respect. The large ice sheets provide an archive of ancient air trapped in small air bubbles that can be measured directly. Deep ice core drillings in Greenland and Antarctica have provided an often undisturbed record of greenhouse gas concentrations in the past. While atmospheric carbon dioxide (CO2) and methane (CH4) have been reconstructed ... |
author2 |
Stauffer, B. Stocker, T. F. |
format |
Doctoral or Postdoctoral Thesis |
author |
Flückiger, Jacqueline |
author_facet |
Flückiger, Jacqueline |
author_sort |
Flückiger, Jacqueline |
title |
Nitrous oxide and methane variations covering the last 100,000 years: Insight into climatic and environmental processes |
title_short |
Nitrous oxide and methane variations covering the last 100,000 years: Insight into climatic and environmental processes |
title_full |
Nitrous oxide and methane variations covering the last 100,000 years: Insight into climatic and environmental processes |
title_fullStr |
Nitrous oxide and methane variations covering the last 100,000 years: Insight into climatic and environmental processes |
title_full_unstemmed |
Nitrous oxide and methane variations covering the last 100,000 years: Insight into climatic and environmental processes |
title_sort |
nitrous oxide and methane variations covering the last 100,000 years: insight into climatic and environmental processes |
publishDate |
2003 |
url |
https://boris.unibe.ch/192466/1/flueckiger03phd.pdf https://boris.unibe.ch/192466/ |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Antarc* Antarctica Greenland ice core |
genre_facet |
Antarc* Antarctica Greenland ice core |
op_source |
Flückiger, Jacqueline (2003). Nitrous oxide and methane variations covering the last 100,000 years: Insight into climatic and environmental processes (Unpublished). (Dissertation, Universität Bern, Philosophisch–naturwissenschaftliche Fakultät, Physikalisches Institut, Abteilung für Klima– und Umweltphysik) |
op_relation |
https://boris.unibe.ch/192466/ |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1801377822808211456 |