A reconstruction of atmospheric carbon dioxide and its stable carbon isotopic composition from the penultimate glacial maximum to the glacial inception
The reconstruction of the stable carbon isotope evolution in atmospheric CO2 (d13Catm ), as archived in Antarctic ice cores, bears the potential to disentangle the contributions of the different carbon cycle fluxes causing past CO2 variations. Here we present a new record of d13Catm before, during a...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.817041 2024-06-23T07:47:14+00:00 A reconstruction of atmospheric carbon dioxide and its stable carbon isotopic composition from the penultimate glacial maximum to the glacial inception Schneider, Robert Schmitt, Jochen Köhler, Peter Joos, Fortunat Fischer, Hubertus MEDIAN LATITUDE: -73.958500 * MEDIAN LONGITUDE: 141.266500 * SOUTH-BOUND LATITUDE: -75.100000 * WEST-BOUND LONGITUDE: 123.350000 * NORTH-BOUND LATITUDE: -72.817000 * EAST-BOUND LONGITUDE: 159.183000 * DATE/TIME START: 2005-01-01T00:00:00 * DATE/TIME END: 2005-01-01T00:00:00 2013 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.817041 https://doi.org/10.1594/PANGAEA.817041 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.817041 https://doi.org/10.1594/PANGAEA.817041 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Schneider, Robert; Schmitt, Jochen; Köhler, Peter; Joos, Fortunat; Fischer, Hubertus (2013): A reconstruction of atmospheric carbon dioxide and its stable carbon isotopic composition from the penultimate glacial maximum to the glacial inception. Climate of the Past, 9(6), 2507-2523, https://doi.org/10.5194/cp-9-2507-2013 EPICA European Project for Ice Coring in Antarctica Integrierte Analyse zwischeneiszeitlicher Klimadynamik INTERDYNAMIK Dataset 2013 ftpangaea https://doi.org/10.1594/PANGAEA.81704110.5194/cp-9-2507-2013 2024-06-04T23:51:55Z The reconstruction of the stable carbon isotope evolution in atmospheric CO2 (d13Catm ), as archived in Antarctic ice cores, bears the potential to disentangle the contributions of the different carbon cycle fluxes causing past CO2 variations. Here we present a new record of d13Catm before, during and after the Marine Isotope Stage 5.5 (155 000 to 105 000 years BP). The record was derived with a well established sublimation method using ice from the EPICA Dome C (EDC) and the Talos Dome ice cores in East Antarctica. We find a 0.4 permil shift to heavier values between the mean d13Catm level in the Penultimate (~ 140 000 years BP) and Last Glacial Maximum (~ 22 000 years BP), which can be explained by either (i) changes in the isotopic composition or (ii) intensity of the carbon input fluxes to the combined ocean/atmosphere carbon reservoir or (iii) by long-term peat buildup. Our isotopic data suggest that the carbon cycle evolution along Termination II and the subsequent interglacial was controlled by essentially the same processes as during the last 24 000 years, but with different phasing and magnitudes. Furthermore, a 5000 years lag in the CO2 decline relative to EDC temperatures is confirmed during the glacial inception at the end of MIS 5.5 (120 000 years BP). Based on our isotopic data this lag can be explained by terrestrial carbon release and carbonate compensation. Dataset Antarc* Antarctic Antarctica East Antarctica EPICA PANGAEA - Data Publisher for Earth & Environmental Science Antarctic East Antarctica Talos Dome ENVELOPE(158.000,158.000,-73.000,-73.000) ENVELOPE(123.350000,159.183000,-72.817000,-75.100000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
EPICA European Project for Ice Coring in Antarctica Integrierte Analyse zwischeneiszeitlicher Klimadynamik INTERDYNAMIK |
spellingShingle |
EPICA European Project for Ice Coring in Antarctica Integrierte Analyse zwischeneiszeitlicher Klimadynamik INTERDYNAMIK Schneider, Robert Schmitt, Jochen Köhler, Peter Joos, Fortunat Fischer, Hubertus A reconstruction of atmospheric carbon dioxide and its stable carbon isotopic composition from the penultimate glacial maximum to the glacial inception |
topic_facet |
EPICA European Project for Ice Coring in Antarctica Integrierte Analyse zwischeneiszeitlicher Klimadynamik INTERDYNAMIK |
description |
The reconstruction of the stable carbon isotope evolution in atmospheric CO2 (d13Catm ), as archived in Antarctic ice cores, bears the potential to disentangle the contributions of the different carbon cycle fluxes causing past CO2 variations. Here we present a new record of d13Catm before, during and after the Marine Isotope Stage 5.5 (155 000 to 105 000 years BP). The record was derived with a well established sublimation method using ice from the EPICA Dome C (EDC) and the Talos Dome ice cores in East Antarctica. We find a 0.4 permil shift to heavier values between the mean d13Catm level in the Penultimate (~ 140 000 years BP) and Last Glacial Maximum (~ 22 000 years BP), which can be explained by either (i) changes in the isotopic composition or (ii) intensity of the carbon input fluxes to the combined ocean/atmosphere carbon reservoir or (iii) by long-term peat buildup. Our isotopic data suggest that the carbon cycle evolution along Termination II and the subsequent interglacial was controlled by essentially the same processes as during the last 24 000 years, but with different phasing and magnitudes. Furthermore, a 5000 years lag in the CO2 decline relative to EDC temperatures is confirmed during the glacial inception at the end of MIS 5.5 (120 000 years BP). Based on our isotopic data this lag can be explained by terrestrial carbon release and carbonate compensation. |
format |
Dataset |
author |
Schneider, Robert Schmitt, Jochen Köhler, Peter Joos, Fortunat Fischer, Hubertus |
author_facet |
Schneider, Robert Schmitt, Jochen Köhler, Peter Joos, Fortunat Fischer, Hubertus |
author_sort |
Schneider, Robert |
title |
A reconstruction of atmospheric carbon dioxide and its stable carbon isotopic composition from the penultimate glacial maximum to the glacial inception |
title_short |
A reconstruction of atmospheric carbon dioxide and its stable carbon isotopic composition from the penultimate glacial maximum to the glacial inception |
title_full |
A reconstruction of atmospheric carbon dioxide and its stable carbon isotopic composition from the penultimate glacial maximum to the glacial inception |
title_fullStr |
A reconstruction of atmospheric carbon dioxide and its stable carbon isotopic composition from the penultimate glacial maximum to the glacial inception |
title_full_unstemmed |
A reconstruction of atmospheric carbon dioxide and its stable carbon isotopic composition from the penultimate glacial maximum to the glacial inception |
title_sort |
reconstruction of atmospheric carbon dioxide and its stable carbon isotopic composition from the penultimate glacial maximum to the glacial inception |
publisher |
PANGAEA |
publishDate |
2013 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.817041 https://doi.org/10.1594/PANGAEA.817041 |
op_coverage |
MEDIAN LATITUDE: -73.958500 * MEDIAN LONGITUDE: 141.266500 * SOUTH-BOUND LATITUDE: -75.100000 * WEST-BOUND LONGITUDE: 123.350000 * NORTH-BOUND LATITUDE: -72.817000 * EAST-BOUND LONGITUDE: 159.183000 * DATE/TIME START: 2005-01-01T00:00:00 * DATE/TIME END: 2005-01-01T00:00:00 |
long_lat |
ENVELOPE(158.000,158.000,-73.000,-73.000) ENVELOPE(123.350000,159.183000,-72.817000,-75.100000) |
geographic |
Antarctic East Antarctica Talos Dome |
geographic_facet |
Antarctic East Antarctica Talos Dome |
genre |
Antarc* Antarctic Antarctica East Antarctica EPICA |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica EPICA |
op_source |
Supplement to: Schneider, Robert; Schmitt, Jochen; Köhler, Peter; Joos, Fortunat; Fischer, Hubertus (2013): A reconstruction of atmospheric carbon dioxide and its stable carbon isotopic composition from the penultimate glacial maximum to the glacial inception. Climate of the Past, 9(6), 2507-2523, https://doi.org/10.5194/cp-9-2507-2013 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.817041 https://doi.org/10.1594/PANGAEA.817041 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.81704110.5194/cp-9-2507-2013 |
_version_ |
1802651317706948608 |