Millennial variations of atmospheric CO2 during the early Holocene (11.7–7.4 ka), based on Siple Dome ice core
We present a new high-resolution record of atmospheric CO2 from the Siple Dome ice core, Antarctica over the early Holocene (11.7–7.4 ka) that quantifies natural CO2 variability on millennial timescales under interglacial climate conditions. We reconstructed atmospheric CO2 concentrations with ages...
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2022
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.949650 https://doi.org/10.1594/PANGAEA.949650 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.949650 2023-05-15T13:56:34+02:00 Millennial variations of atmospheric CO2 during the early Holocene (11.7–7.4 ka), based on Siple Dome ice core Shin, Jinhwa Ahn, Jinho Beeman, Jai Chowdhry Lee, Hun-Gyu Seo, Jaemyeong Mango Brook, Edward J LATITUDE: -81.667000 * LONGITUDE: -148.833000 * DATE/TIME START: 1998-01-01T00:00:00 * DATE/TIME END: 1998-09-25T00:00:00 * MINIMUM DEPTH, ice/snow: 482.24 m * MAXIMUM DEPTH, ice/snow: 625.10 m 2022-10-13 text/tab-separated-values, 612 data points https://doi.pangaea.de/10.1594/PANGAEA.949650 https://doi.org/10.1594/PANGAEA.949650 en eng PANGAEA Ahn, Jinho; Brook, Edward J; Buizert, Christo (2014): Response of atmospheric CO2 to the abrupt cooling event 8200 years ago. Geophysical Research Letters, 41(2), 604-609, https://doi.org/10.1002/2013GL058177 Ahn, Jinho; Yang, Ji-Woong (2017): Early Holocene methane records from Siple Dome, Antarctica. PANGAEA, https://doi.org/10.1594/PANGAEA.880561 Yang, Ji-Woong; Ahn, Jinho; Brook, Edward J; Ryu, Yeongjun (2017): Atmospheric methane control mechanisms during the early Holocene. Climate of the Past, 13(9), 1227-1242, https://doi.org/10.5194/cp-13-1227-2017 https://doi.pangaea.de/10.1594/PANGAEA.949650 https://doi.org/10.1594/PANGAEA.949650 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY AGE Antarctica carbon dioxide standard error DEPTH ice/snow Early Holocene Ice_core_diverse Ice core ICEDRILL Ice drill Reference/source Sampling/drilling ice Siple_Dome Siple Coast Siple Dome Dataset 2022 ftpangaea https://doi.org/10.1594/PANGAEA.949650 https://doi.org/10.1002/2013GL058177 https://doi.org/10.1594/PANGAEA.880561 https://doi.org/10.5194/cp-13-1227-2017 2023-01-20T09:16:28Z We present a new high-resolution record of atmospheric CO2 from the Siple Dome ice core, Antarctica over the early Holocene (11.7–7.4 ka) that quantifies natural CO2 variability on millennial timescales under interglacial climate conditions. We reconstructed atmospheric CO2 concentrations with ages between 11.7 and 9.0 ka from the Siple Dome ice core. 247 individual ice samples from 99 depth intervals were measured by needle cracker dry extraction and gas chromatography methods at Seoul National University (SNU). To extend the record to 7.4 ka, we made a composite dataset using a previous CO2 record from the Siple Dome ice core covering 9.0–7.4 ka measured by the needle cracker system at Oregon State University (OSU) (Ahn et al., 2014, https://doi.org/10.1002/2013gl058177). To make a composite record of atmospheric CO2, we tested for bias between the two data sets. Siple Dome samples from 7 depth intervals between 538.55–490. 16 samples were analysed at both laboratories (Ahn et al., 2014, https://doi.org/10.1002/2013gl058177). The SNU measurements were higher than the OSU measurements by 0.3±0.7 ppm (1σ) on average, indicating that the SNU and OSU results agree well. The small offset of 0.3 ppm was added to OSU data before combining them with the SNU results. The Siple Dome samples are placed on the improved Siple Dome chronology developed by Yang et al. (2017, https://doi.org/10.1594/PANGAEA.880561), which is aligned with the Greenland Ice Core Chronology, 2005 (GICC05) using the synchronization of CH4 and δ18Oatm time series. Dataset Antarc* Antarctica Greenland Greenland ice core ice core PANGAEA - Data Publisher for Earth & Environmental Science Greenland Siple ENVELOPE(-83.917,-83.917,-75.917,-75.917) Siple Coast ENVELOPE(-155.000,-155.000,-82.000,-82.000) Siple Dome ENVELOPE(-148.833,-148.833,-81.667,-81.667) The Needle ENVELOPE(-64.047,-64.047,63.267,63.267) ENVELOPE(-148.833000,-148.833000,-81.667000,-81.667000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AGE Antarctica carbon dioxide standard error DEPTH ice/snow Early Holocene Ice_core_diverse Ice core ICEDRILL Ice drill Reference/source Sampling/drilling ice Siple_Dome Siple Coast Siple Dome |
spellingShingle |
AGE Antarctica carbon dioxide standard error DEPTH ice/snow Early Holocene Ice_core_diverse Ice core ICEDRILL Ice drill Reference/source Sampling/drilling ice Siple_Dome Siple Coast Siple Dome Shin, Jinhwa Ahn, Jinho Beeman, Jai Chowdhry Lee, Hun-Gyu Seo, Jaemyeong Mango Brook, Edward J Millennial variations of atmospheric CO2 during the early Holocene (11.7–7.4 ka), based on Siple Dome ice core |
topic_facet |
AGE Antarctica carbon dioxide standard error DEPTH ice/snow Early Holocene Ice_core_diverse Ice core ICEDRILL Ice drill Reference/source Sampling/drilling ice Siple_Dome Siple Coast Siple Dome |
description |
We present a new high-resolution record of atmospheric CO2 from the Siple Dome ice core, Antarctica over the early Holocene (11.7–7.4 ka) that quantifies natural CO2 variability on millennial timescales under interglacial climate conditions. We reconstructed atmospheric CO2 concentrations with ages between 11.7 and 9.0 ka from the Siple Dome ice core. 247 individual ice samples from 99 depth intervals were measured by needle cracker dry extraction and gas chromatography methods at Seoul National University (SNU). To extend the record to 7.4 ka, we made a composite dataset using a previous CO2 record from the Siple Dome ice core covering 9.0–7.4 ka measured by the needle cracker system at Oregon State University (OSU) (Ahn et al., 2014, https://doi.org/10.1002/2013gl058177). To make a composite record of atmospheric CO2, we tested for bias between the two data sets. Siple Dome samples from 7 depth intervals between 538.55–490. 16 samples were analysed at both laboratories (Ahn et al., 2014, https://doi.org/10.1002/2013gl058177). The SNU measurements were higher than the OSU measurements by 0.3±0.7 ppm (1σ) on average, indicating that the SNU and OSU results agree well. The small offset of 0.3 ppm was added to OSU data before combining them with the SNU results. The Siple Dome samples are placed on the improved Siple Dome chronology developed by Yang et al. (2017, https://doi.org/10.1594/PANGAEA.880561), which is aligned with the Greenland Ice Core Chronology, 2005 (GICC05) using the synchronization of CH4 and δ18Oatm time series. |
format |
Dataset |
author |
Shin, Jinhwa Ahn, Jinho Beeman, Jai Chowdhry Lee, Hun-Gyu Seo, Jaemyeong Mango Brook, Edward J |
author_facet |
Shin, Jinhwa Ahn, Jinho Beeman, Jai Chowdhry Lee, Hun-Gyu Seo, Jaemyeong Mango Brook, Edward J |
author_sort |
Shin, Jinhwa |
title |
Millennial variations of atmospheric CO2 during the early Holocene (11.7–7.4 ka), based on Siple Dome ice core |
title_short |
Millennial variations of atmospheric CO2 during the early Holocene (11.7–7.4 ka), based on Siple Dome ice core |
title_full |
Millennial variations of atmospheric CO2 during the early Holocene (11.7–7.4 ka), based on Siple Dome ice core |
title_fullStr |
Millennial variations of atmospheric CO2 during the early Holocene (11.7–7.4 ka), based on Siple Dome ice core |
title_full_unstemmed |
Millennial variations of atmospheric CO2 during the early Holocene (11.7–7.4 ka), based on Siple Dome ice core |
title_sort |
millennial variations of atmospheric co2 during the early holocene (11.7–7.4 ka), based on siple dome ice core |
publisher |
PANGAEA |
publishDate |
2022 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.949650 https://doi.org/10.1594/PANGAEA.949650 |
op_coverage |
LATITUDE: -81.667000 * LONGITUDE: -148.833000 * DATE/TIME START: 1998-01-01T00:00:00 * DATE/TIME END: 1998-09-25T00:00:00 * MINIMUM DEPTH, ice/snow: 482.24 m * MAXIMUM DEPTH, ice/snow: 625.10 m |
long_lat |
ENVELOPE(-83.917,-83.917,-75.917,-75.917) ENVELOPE(-155.000,-155.000,-82.000,-82.000) ENVELOPE(-148.833,-148.833,-81.667,-81.667) ENVELOPE(-64.047,-64.047,63.267,63.267) ENVELOPE(-148.833000,-148.833000,-81.667000,-81.667000) |
geographic |
Greenland Siple Siple Coast Siple Dome The Needle |
geographic_facet |
Greenland Siple Siple Coast Siple Dome The Needle |
genre |
Antarc* Antarctica Greenland Greenland ice core ice core |
genre_facet |
Antarc* Antarctica Greenland Greenland ice core ice core |
op_relation |
Ahn, Jinho; Brook, Edward J; Buizert, Christo (2014): Response of atmospheric CO2 to the abrupt cooling event 8200 years ago. Geophysical Research Letters, 41(2), 604-609, https://doi.org/10.1002/2013GL058177 Ahn, Jinho; Yang, Ji-Woong (2017): Early Holocene methane records from Siple Dome, Antarctica. PANGAEA, https://doi.org/10.1594/PANGAEA.880561 Yang, Ji-Woong; Ahn, Jinho; Brook, Edward J; Ryu, Yeongjun (2017): Atmospheric methane control mechanisms during the early Holocene. Climate of the Past, 13(9), 1227-1242, https://doi.org/10.5194/cp-13-1227-2017 https://doi.pangaea.de/10.1594/PANGAEA.949650 https://doi.org/10.1594/PANGAEA.949650 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.949650 https://doi.org/10.1002/2013GL058177 https://doi.org/10.1594/PANGAEA.880561 https://doi.org/10.5194/cp-13-1227-2017 |
_version_ |
1766264101905891328 |