USAP-DC

[{"dataset_id": "609539", "west": -148.82, "east": -148.82, "south": -81.66, "north": -81.66, "gid": 162, "geometry": "0101000020E61000000AD7A3703D9A62C00AD7A3703D6A54C0", "cross_dateline": false, "bounds_geometry": "0101000020E61000000AD7A3703D9A62C00AD7A3703D6A54C0"}, {"dataset_id": "609539", "west": -119.83, "east": -119.83, "south": -80.01, "north": -80.01, "gid": 163, "geometry": "0101000020E610000085EB51B81EF55DC0713D0AD7A30054C0", "cross_dateline": false, "bounds_geometry": "0101000020E610000085EB51B81EF55DC0713D0AD7A30054C0"}]

{"@context": "https://schema.org/", "@type": "Dataset", "@id": "doi:10.7265/N5F47M23", "additionalType": ["geolink:Dataset", "vivo:Dataset"], "name": "Abrupt Change in Atmospheric CO2 During the Last Ice Age", "description": "During the last glacial period atmospheric carbon dioxide and temperature in Antarctica varied in a similar fashion on millennial time scales, but previous work indicates that these changes were gradual. In a detailed analysis of one event, we now find that approximately half of the CO2 increase that occurred during the 1500 year cold period between Dansgaard-Oeschger (DO) Events 8 and 9 happened rapidly, over less than two centuries. This rise in CO2 was synchronous with, or slightly later than, a rapid increase of Antarctic temperature inferred from stable isotopes.", "citation": "Brook, E. J., & Ahn, J. (2013) \"Abrupt Change in Atmospheric CO2 During the Last Ice Age\" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.7265/N5F47M23.", "datePublished": "2013-08-08", "keywords": ["Antarctica", "Arctic", "Byrd", "Chemistry:fluid", "CO2", "Geochemistry", "GISP2", "Glaciers/ice Sheet", "Glaciology", "Ice Core Records", "Methane", "Paleoclimate", "Siple Dome Ice Core", "Taylor Dome", "Taylor Dome Ice Core"], "creator": [{"@type": "Person", "additionalType": "geolink:Person", "name": "Ahn, Jinho", "email": "jinhoahn@snu.ac.kr", "affiliation": {"@type": "Organization", "name": "599 Kwanak-ro, Kwanak-gu, School of Earth and Environmental Sciences, Seoul National University, Seoul 151742, South Korea"}}, {"@type": "Person", "additionalType": "geolink:Person", "name": "Brook, Edward J.", "email": "brooke@geo.oregonstate.edu", "affiliation": {"@type": "Organization", "name": "104 Wilkinson Hall"}}], "distribution": [{"@type": "DataDownload", "additionalType": "http://www.w3.org/ns/dcat#DataCatalog", "encodingFormat": "text/xml", "name": "ISO Metadata Document", "url": "https://www.usap-dc.org/metadata/isoxml/609539iso.xml", "contentUrl": "/dataset/filename"}, {"@type": "DataDownload", "@id": "http://dx.doi.org/10.7265/N5F47M23", "additionalType": "dcat:distribution", "url": "http://dx.doi.org/10.7265/N5F47M23", "contentUrl": "/dataset/filename", "encodingFormat": "text/html"}, {"@type": "DataDownload", "@id": "https://www.usap-dc.org/view/dataset/609539", "additionalType": "dcat:distribution", "url": "https://www.usap-dc.org/view/dataset/609539", "contentUrl": "/dataset/filename", "encodingFormat": "text/html"}], "identifier": {"@type": "PropertyValue", "propertyID": "https://registry.identifiers.org/registry/doi", "value": "doi:10.7265/N5F47M23", "url": "https://doi.org/10.7265/N5F47M23"}, "contributor": [{"@type": "Role", "roleName": "credit", "description": "funderName:NSF:GEO:PLR:Antarctic Glaciology awardNumber:0944764 awardTitle:Atmospheric CO2 and Abrupt Climate Change"}], "license": [{"@type": "CreativeWork", "URL": "https://creativecommons.org/licenses/by-nc/4.0/", "name": "MD_Constraints", "description": "useLimitation: Creative Commons Attribution-NonCommercial v4.0 Generic [CC BY-NC 4.0]."}, {"@type": "CreativeWork", "name": "MD_LegalConstraints", "description": "accessConstraints: license. otherConstraints: Creative Commons Attribution-NonCommercial v4.0 Generic [CC BY-NC 4.0]."}, {"@type": "CreativeWork", "name": "MD_SecurityConstraints", "description": "classification: "}], "publisher": {"@type": "Organization", "name": "U.S. Antarctic Program (USAP) Data Center"}, "spatialCoverage": [{"@type": "Place", "geo": {"@type": "GeoShape", "box": "-81.66 -148.82 -81.66 -148.82"}}, {"@type": "Place", "geo": {"@type": "GeoShape", "box": "-80.01 -119.83 -80.01 -119.83"}}]}

Abrupt Change in Atmospheric CO2 During the Last Ice Age Data DOI: https://doi.org/10.7265/N5F47M23 Cite as Brook, E. J., & Ahn, J. (2013) "Abrupt Change in Atmospheric CO2 During the Last Ice Age" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.7265/N5F47M23. AMD - DIF Record(s) NSIDC-0539_1 Abstract During the last glacial period atmospheric carbon dioxide and temperature in Antarctica varied in a similar fashion on millennial time scales, but previous work indicates that these changes were gradual. In a detailed analysis of one event, we now find that approximately half of the CO2 increase that occurred during the 1500 year cold period between Dansgaard-Oeschger (DO) Events 8 and 9 happened rapidly, over less than two centuries. This rise in CO2 was synchronous with, or slightly later than, a rapid increase of Antarctic temperature inferred from stable isotopes. Creator(s): Brook, Edward J.; Ahn, Jinho Date Created: 2013-08-08 Repository: USAP-DC (current) - NSIDC (original) License: Creative Commons Attribution-NonCommercial v4.0 Generic [CC BY-NC 4.0] Spatial Extent(s) West: -148.82, East: -148.82, South: -81.66, North: -81.66 West: -119.83, East: -119.83, South: -80.01, North: -80.01 Temporal Extent(s) Start: 2009-01-01 - End: 2012-12-31 Award(s) NSF 0944764 Version: 1 Related Project(s) Atmospheric CO2 and Abrupt Climate Change References Brook, E. J., J. W. C. White, A. Schilla, M. Bender, B. Barnett, J. Severinghaus, K. Taylor, R. Alley, and E. Steig. 2005. Timing of Millennial-scale Climate Change at Siple Dome, West Antarctica, During the Last Glacial Period. Quaternary Science Reviews 24:1333-1343: doi:10.1016/j.quascirev.2005.02.002. (doi:10.1016/j.quascirev.2005.02.002) Mitchell, L.E., Brook, E.J., Sowers, T. and McConnell, J.R. 2011. Multidecadal variability of atmospheric methane, 1000-1800 C.E. Journal of Geophysical Research, 116(G02007). doi: 10.1029/2010JG001441. (doi:10.1029/2010JG001441) Ahn, J., Brook, E. and Howell, K. 2009. A high-precision method for measurement of paleoatmospheric CO2 in small polar ice samples. Journal of Glaciology, 55(191), p. 499-506. (doi:10.3189/002214309788816731) Ahn, J., and E. J. Brook. 2008. Atmospheric CO2 and Climate on Millennial Time Scales during the Last Glacial Period. Science, 322, 83 - 85, (doi:10.1126/science.1160832) Ahn, Jinho, Edward J. Brook, Andreas Schmittner, and Karl Kreutz. 2013. Abrupt Change in Atmospheric CO2 During the Last Ice Age. Geophysical Research Letters, 39, L18711, doi:10.1029/2012GL053018. (doi:10.1029/2012GL053018) Anderson, R. F., et al. 2009. Wind-driven Upwelling in the Southern Ocean and the Deglacial Rise in Atmospheric CO2. Science, 323, 1443-1448, doi:10.1126/science.1167441. (doi:10.1126/science.1167441) Bender, M., Todd Sowers, and V. Lipenkov. 1995. On the Concentrations of O2, N2, and Ar in Trapped Gases from Ice Cores. J. Geophys. Res., 100, 18,651-18,660, doi:10.1029/94JD02212. (doi:10.1029/94JD02212) Blunier, T., and E. J. Brook. 2001. Timing of Millennial-scale Climate Change in Antarctica and Greenland during the Last Glacial Period, Science, 291, 109-112, doi:10.1126/science.291.5501.109. (doi:10.1126/science.291.5501.109) Dlugokencky, E. J., et al. 2005. Conversion of NOAA Atmospheric Dry Air CH4 Mole Fractions to a Gravimetrically Prepared Standard Scale. J. Geophys. Res., 110, D18306, doi:10.1029/2005JD006035. (doi:10.1029/2005JD006035) EPICA Community Members. 2006. One-to-one Coupling of Glacial Climate Variability in Greenland and Antarctica, Nature, 444, 195–198, doi:10.1038/nature05301. (doi:10.1038/nature05301) Margari, V., et al. 2010. The Nature of Millennial-scale Climate Variability during the Past Two Glacial Periods. Nattional Geoscience, 3, 127-131, doi:10.1038/ngeo740. (doi:10.1038/ngeo740) Mayewski, P. A., et al. 2009. State of the Antarctic and Southern Ocean Climate System (SASOCS), Rev. Geophys., 47, RG1003, doi:10.1029/2007RG000231. (doi:10.1029/2007RG000231) Skinner, L. C., and H. Elderfield. 2007. Rapid Fluctuations in the Deep North Atlantic Heat Budget during the Last Glacial Period, Paleoceanography, 22, PA1205, doi:10.1029/2006PA001338. (doi:10.1029/2006PA001338) Sowers, Todd, M. Bender, D. Raynaud, and Y. S. Korotkevich. 1992. d15N of N2 in Air Trapped in Polar Ice: A Tracer of Gas Transport in the Firn and a Possible Constraint on Ice Age-gas Age Differences. J. Geophys. Res., 97, 15,683-15,697, doi:10.1029/92JD01297. (doi:10.1029/92JD01297) Stauffer, B. 2006. CO2 Studies. Encyclopedia of Quaternary Science, vol. 2, edited by S. A. Elias, pp. 1181-1189, Elsevier, Amsterdam. Keywords Antarctica Arctic Byrd Chemistry:fluid CO2 Geochemistry GISP2 Glaciers/ice Sheet Glaciology Ice Core Records Methane Paleoclimate Siple Dome Ice Core Taylor Dome Taylor Dome Ice Core