Talos Dome Ice Core 315KYr Methane Data Buiron, D.; Chappellaz, J.A.; Stenni, B.; Frezzotti, M.; Baumgartner, M.; Capron, E.; Landais, A.; Lemieux-Dudon, B.; Masson-Delmotte, V.; Montagnat, M.; Parrenin, F.; Schilt, A. Buiron, D. Chappellaz, J.A. Stenni, B. Frezzotti, M. Baumgartner, M. Capron, E. Landais, A. Lemieux-Dudon, B. Masson-Delmotte, V. Montagnat, M. Parrenin, F. Schilt, A. earth science/paleoclimate/climate forcing|ice cores (methane,bulk atmosphere,one standard deviation,parts per billion,null,climate forcing|ice cores,null,gas chromatography|wet extraction,N,null) earth science/paleoclimate/ice cores (depth,null,null,meter,null,ice cores,null,null,N,null) earth science/paleoclimate/ice cores (gas age,null,null,calendar year before present,null,ice cores,null,null,N,null) earth science/paleoclimate/climate forcing|ice cores (methane,bulk atmosphere,null,parts per billion,null,climate forcing|ice cores,null,gas chromatography|wet extraction,N,null) earth science/paleoclimate/ice core (Talos Dome TALDICE>LATITUDE -72.8166>LONGITUDE 159.1833) A new deep ice core drilling program, TALDICE, has been successfully handled by a European team at Talos Dome, in the Ross Sea sector of East Antarctica, down to 1620m depth. Using stratigraphic markers and a new inverse method, we produce the first official chronology of the ice core, called TALDICE-1. We show that it notably improves an a priori chronology resulting from a one-dimensional ice flow model. It is in agreement with a posteriori controls of the resulting accumulation rate and thinning function along the core. An absolute uncertainty of only 300 yr is obtained over the course of the last deglaciation. This uncertainty remains lower than 600 yr over Marine Isotope Stage 3, back to 50 kyr BP. The phasing of the TALDICE ice core climate record with respect to the central East Antarctic plateau and Greenland records can thus be determined with a precision allowing for a discussion of the mechanisms at work at submillennial time scales. STUDY NOTES: CH4 record from the Talos Dome ice core, Antarctica, covering the whole ice core. Talos Dome ice core: 72°49'S, 159°11'E, 2315 m elevation. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Buiron, D. Investigator : Chappellaz, J.A. Investigator : Stenni, B. Investigator : Frezzotti, M. Investigator : Baumgartner, M. Investigator : Capron, E. Investigator : Landais, A. Investigator : Lemieux-Dudon, B. Investigator : Masson-Delmotte, V. Investigator : Montagnat, M. Investigator : Parrenin, F. Investigator : Schilt, A. 2012-09-10 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/13282 https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/talos/talos2011ch4.txt https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/talos/talos2011ch4.xls https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/talos/talos2011ch4.txt https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/talos/talos2011ch4.xls English https://www.ncdc.noaa.gov/paleo/study/13282 https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/talos/talos2011ch4.txt https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/talos/talos2011ch4.xls Buiron, D., J. Chappellaz, B. Stenni, M. Frezzotti, M. Baumgartner, E. Capron, A. Landais, B. Lemieux-Dudon, V. Masson-Delmotte, M. Montagnat, F. Parrenin, and A. Schilt. 2011. TALDICE-1 age scale of the Talos Dome deep ice core, East Antarctica. Climate of the Past, 7, 1-16, 2011. doi:10.5194/cp-7-1-2011 START YEAR: 314641 cal yr BP * END YEAR: 15 cal yr BP 159.1833 -72.8166 159.1833 -72.8166