File:Epica-vostok-grip-ngrip-o18.png
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Summary
[edit]DescriptionEpica-vostok-grip-ngrip-o18.png |
English: Extension of File:Epica-vostok-grip-140kyr.png to include GRIP data.
Note that the GRIP and NGRIP en:Dansgaard-Oeschger events should be co-incident; but the timescales are not absolutely referenced. so they appear not to be. Note also that the NGRIP data is regular in time but the GRIP data in depth, hence the apparent greater variability of GRIP in the current interglacial is not real. The greater warmth of NGRIP than GRIP in the current interglacial, but roughly equal warmth in the glacial, is probably real. After 110 kyr the GRIP and NGRIP cores clearly differ: the NGRIP core is reliable, the GRIP core is unreliable due to ice folding near the base. |
Date | 26 June 2005 (original upload date) |
Source |
GRIP: GRIP Members. 1993. Climate instability during the last interglacial period recorded in the GRIP ice core. Nature 364:203-207. ftp://ftp.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/summit/grip/isotopes/gripd18o.txt NGRIP: North Greenland Ice Core Project Oxygen Isotope Data. IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series # 2004-059. NOAA/NGDC Paleoclimatology Program, Boulder CO, USA. ftp://ftp.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/summit/ngrip/isotopes/ngrip-d18o-50yr.txt (ss09sea timescale) EPICA: Jouzel, J., et al. 2004. EPICA Dome C Ice Cores Deuterium Data. IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series # 2004-038. NOAA/NGDC Paleoclimatology Program, Boulder CO, USA. ftp://ftp.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/epica_domec/edc_dd.txt (EDC2 timescale) Vostok: Petit, J.R., et al., 2001, Vostok Ice Core Data for 420,000 Years, IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series #2001-076. NOAA/NGDC Paleoclimatology Program, Boulder CO, USA. ftp://ftp.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/vostok/deutnat.txt (GT4 timescale) |
Author | GRIP Members (1993); Vostok Ice Core Data (Petit, J.R., et al., 2001); North Greenland Ice Core Project members (2004); EPICA community members (2004); this image file by William M. Connolley. |
Permission (Reusing this file) |
GFDL-WITH-DISCLAIMERS; Released under the GNU Free Documentation License. |
Other versions | File:Epica-vostok-grip-140kyr.png |
Licensing
[edit]This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. Subject to disclaimers. | ||
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. Subject to disclaimers.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
Original upload log
[edit]- 2005-06-26 20:41 William M. Connolley 1169×373× (19243 bytes) Extension of [[:Image:Epica-vostok-grip-140kyr.png]] to include GRIP data. Note that the GRIP and NGRIP [[Dansgaard-Oeschger events]] should be co-incident; but the timescales are not absolutely referenced. so they appear not to be. Note also that the NG
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