2024-03-29T05:42:24Zhttp://nsidc.org/api/dataset/metadata/oaioai:nsidc.org/NSIDC-05392023-05-23T20:36:14Zbrokered
NSIDC-0539Abrupt Change in Atmospheric CO2 During the Last Ice AgeBrook, E. J. and J. Ahn.Abrupt Change in Atmospheric CO2 During the Last Ice Age2013-08-08Boulder, Colorado USANSIDC: National Snow and Ice Data Center1false10.7265/N5F47M23https://doi.org/10.7265/N5F47M23NSIDC-0539Technical ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-61991-303-492-2468CIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAInvestigatorEdwardJBrookbrooke@geo.oregonstate.edu1-541-737-8197104 Wilkinson HallCorvallisOR97331-5506USAInvestigatorJinhoAhnjinhoahn@snu.ac.kr1-541-737-1377599 Kwanak-roKwanak-guSchool of Earth and Environmental SciencesSeoul National UniversitySeoul 151742, South KoreaKoreaEARTH SCIENCEPaleoclimateIce Core RecordsCarbon Dioxide ICE CORE RECORDSEARTH SCIENCEPaleoclimateIce Core RecordsMethane ICE CORE RECORDSClimatology/Meteorology/AtmosphereAGDC-projectCH4 concentrationsCO2 concentrationsCO2 ANALYZERSGAS CHROMATOGRAPHSGROUND-BASED OBSERVATIONSGROUND-BASED OBSERVATIONSLABORATORYLABORATORY2009-01-012012-12-3137 ka47 kaPhanerozoicCenozoicQuaternaryQuaternary37 ka47 kaPhanerozoicCenozoicQuaternaryQuaternarycomplete-80.01-80.01-119.83-119.831685.1 meters1814.5 meters-81.66-81.66-148.82-148.82819 meters905 metersContinentAntarcticaNSF/OPPDivision of Polar Programs, Antarctic Research, GlaciologyEnglishAGDCFTP42 KBExcelAhn, 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.
Ahn, Jinho., Edward J. Brook, and K. Howell. 2009. A High-precision Method for Measurement of Paleoatmospheric CO2 in Small Polar Ice Samples. J. Glaciol., 55, 499-506, doi:10.3189/002214309788816731.
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.
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.
Brook, Edward J., et al. 2005. Timing of Millennial-scale Climate Change at Siple Dome, West Antarctica, During the Last Glacial Period. Quat. Sci. Rev., 24, 1333-1343, doi:10.1016/j.quascirev.2005.02.002.
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.
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.
EPICA Community Members. 2006. One-to-one Coupling of Glacial Climate Variability in Greenland and Antarctica, Nature, 444, 195–198, 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.
Mayewski, P. A., et al. 2009. State of the Antarctic and Southern Ocean Climate System (SASOCS), Rev. Geophys., 47, RG1003, doi:10.1029/2007RG000231.
Mitchell, L. E., Edward J. Brook, Todd Sowers, J. R. McConnell, and K. Taylor. 2011. Multidecadal Variability of Atmospheric Methane, 1000–1800 C.E. J. Geophys. Res., 116, G02007, doi:10.1029/2010JG001441.
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.
Sowers, Todd, M. Bender, D. Raynaud, and Y. S. Korotkevich. 1992. δ15N 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.
Stauffer, B. 2006. CO2 Studies. Encyclopedia of Quaternary Science, vol. 2, edited by S. A. Elias, pp. 1181-1189, Elsevier, Amsterdam.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.VIEW RELATED INFORMATIONhttps://doi.org/10.7265/N5F47M23DocumentationGET DATAhttp://www.usap-dc.org/view/dataset/609539Get External DataCEOS IDN DIFVERSION 9.92013-08-082023-05-23NSIDCVersion SummaryNSIDCMinor VersionNSIDCCurrent Version1NSIDCFull Dataset CitationBrook, E. J. and J. Ahn. 2013. <i>Abrupt Change in Atmospheric CO2 During the Last Ice Age.</i> [indicate subset used]. Boulder, Colorado USA: National Snow and Ice Data Center. <a href="https://doi.org/10.7265/N5F47M23">https://doi.org/10.7265/N5F47M23</a>. [Date Accessed].NSIDCRetiredfalse