A model for late Quaternary methane ice core signals: Wetlands versus a shallow marine source

[1] A three-reservoir model with first order kinetics for methane records in the Vostok (Antarctica) and GISP2 (Greenland) ice cores reproduces the sawtooth pattern and the maximum and minimum concentrations. The model also returns an atmospheric methane relaxation time of 10 years for both cores, w...

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Bibliographic Details
Main Author: Kieran D. O’hara
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
Greenland
Antarc*
Antarctica
Greenland ice cores
ice core
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.595.3684
http://www.uky.edu/AS/Geology/ohara/mywebpage/methane08.pdf
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spelling ftciteseerx:oai:CiteSeerX.psu:10.1.1.595.3684 2023-05-15T13:46:54+02:00 A model for late Quaternary methane ice core signals: Wetlands versus a shallow marine source Kieran D. O’hara The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.595.3684 http://www.uky.edu/AS/Geology/ohara/mywebpage/methane08.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.595.3684 http://www.uky.edu/AS/Geology/ohara/mywebpage/methane08.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.uky.edu/AS/Geology/ohara/mywebpage/methane08.pdf text ftciteseerx 2016-01-08T13:42:31Z [1] A three-reservoir model with first order kinetics for methane records in the Vostok (Antarctica) and GISP2 (Greenland) ice cores reproduces the sawtooth pattern and the maximum and minimum concentrations. The model also returns an atmospheric methane relaxation time of 10 years for both cores, which is the same as current estimates. The characteristics of the source reservoirs are long relaxation times (33.3 and 100 ky) and high initial methane concentrations (2500 and 7000 ppm) for GISP2 and Vostok, respectively. These characteristics are consistent with gas hydrate sources in shallow marine sediments, but not with wetland sources which have insufficient storage capacity and low source strength. Text Antarc* Antarctica Greenland Greenland ice cores ice core Unknown Greenland
institution Open Polar
collection Unknown
op_collection_id ftciteseerx
language English
description [1] A three-reservoir model with first order kinetics for methane records in the Vostok (Antarctica) and GISP2 (Greenland) ice cores reproduces the sawtooth pattern and the maximum and minimum concentrations. The model also returns an atmospheric methane relaxation time of 10 years for both cores, which is the same as current estimates. The characteristics of the source reservoirs are long relaxation times (33.3 and 100 ky) and high initial methane concentrations (2500 and 7000 ppm) for GISP2 and Vostok, respectively. These characteristics are consistent with gas hydrate sources in shallow marine sediments, but not with wetland sources which have insufficient storage capacity and low source strength.
author2 The Pennsylvania State University CiteSeerX Archives
format Text
author Kieran D. O’hara
spellingShingle Kieran D. O’hara
A model for late Quaternary methane ice core signals: Wetlands versus a shallow marine source
author_facet Kieran D. O’hara
author_sort Kieran D. O’hara
title A model for late Quaternary methane ice core signals: Wetlands versus a shallow marine source
title_short A model for late Quaternary methane ice core signals: Wetlands versus a shallow marine source
title_full A model for late Quaternary methane ice core signals: Wetlands versus a shallow marine source
title_fullStr A model for late Quaternary methane ice core signals: Wetlands versus a shallow marine source
title_full_unstemmed A model for late Quaternary methane ice core signals: Wetlands versus a shallow marine source
title_sort model for late quaternary methane ice core signals: wetlands versus a shallow marine source
url http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.595.3684
http://www.uky.edu/AS/Geology/ohara/mywebpage/methane08.pdf
geographic Greenland
geographic_facet Greenland
genre Antarc*
Antarctica
Greenland
Greenland ice cores
ice core
genre_facet Antarc*
Antarctica
Greenland
Greenland ice cores
ice core
op_source http://www.uky.edu/AS/Geology/ohara/mywebpage/methane08.pdf
op_relation http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.595.3684
http://www.uky.edu/AS/Geology/ohara/mywebpage/methane08.pdf
op_rights Metadata may be used without restrictions as long as the oai identifier remains attached to it.
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