Evidence for molecular size dependent gas fractionation in firn air derived from noble gases, oxygen, and nitrogen measurements

[1]  J. Severinghaus,et al.  Fractionation of gases in polar ice during bubble close-off: New constraints from firn air Ne, Kr and Xe observations , 2006 .

[2]  Kenji Fukumizu,et al.  Effects of molecular diffusion on trapped gas composition in polar ice cores , 2005 .

[3]  T. Stocker,et al.  N2O and CH4 variations during the last glacial epoch: Insight into global processes , 2004 .

[4]  B. Stauffer,et al.  The attenuation of fast atmospheric CH4 variations recorded in polar ice cores , 2003 .

[5]  J. Severinghaus,et al.  A method for precise measurement of argon 40/36 and krypton/argon ratios in trapped air in polar ice with applications to past firn thickness and abrupt climate change in Greenland and at Siple Dome, Antarctica , 2003 .

[6]  M. Bender.  Orbital tuning chronology for the Vostok climate record supported by trapped gas composition , 2002 .

[7]  J. Severinghaus,et al.  Thermal fractionation of air in polar firn by seasonal temperature gradients , 2001 .

[8]  T. Stocker,et al.  Atmospheric CO2 concentrations over the last glacial termination. , 2001, Science.

[9]  Brook,et al.  Abrupt climate change at the end of the last glacial period inferred from trapped air in polar Ice , 1999, Science.

[10]  M. Leuenberger,et al.  16°C Rapid Temperature Variation in Central Greenland 70,000 Years Ago , 1999 .

[11]  D. Etheridge,et al.  A history of δ13C in atmospheric CH4 from the Cape Grim Air Archive and Antarctic firn air , 1999 .

[12]  M. Leuenberger,et al.  Delta15N measurements as a calibration tool for the paleothermometer and gas-ice age differences : A case study for the 8200 B.P. event on GRIP ice , 1999 .

[13]  James W. Elkins,et al.  A record of atmospheric halocarbons during the twentieth century from polar firn air , 1999, Nature.

[14]  J. Jouzel,et al.  Climate and atmospheric history of the past 420,000 years from the Vostok ice core, Antarctica , 1999, Nature.

[15]  Martin Wahlen,et al.  Holocene carbon-cycle dynamics based on CO2 trapped in ice at Taylor Dome, Antarctica , 1999, Nature.

[16]  D. Etheridge,et al.  Atmospheric methane between 1000 A.D. and present: Evidence of anthropogenic emissions and climatic variability , 1998 .

[17]  J. Severinghaus,et al.  Timing of abrupt climate change at the end of the Younger Dryas interval from thermally fractionated gases in polar ice , 1998, Nature.

[18]  D. Etheridge,et al.  Modeling air movement and bubble trapping in firn , 1997 .

[19]  P. M. Lang,et al.  Atmospheric gas concentrations over the past century measured in air from firn at the South Pole , 1996, Nature.

[20]  E. Brook,et al.  Rapid Variations in Atmospheric Methane Concentration During the Past 110,000 Years , 1996, Science.

[21]  Martin Heimann,et al.  Global and hemispheric CO2 sinks deduced from changes in atmospheric O2 concentration , 1996, Nature.

[22]  David C. Lowe,et al.  Variability in the O2/N2 ratio of southern hemisphere air, 1991–1994: Implications for the carbon cycle , 1996 .

[23]  D. Etheridge,et al.  Natural and anthropogenic changes in atmospheric CO2 over the last 1000 years from air in Antarctic ice and firn , 1996 .

[24]  T. Sowers,et al.  On the concentrations of O2, N2, and Ar in trapped gases from ice cores , 1995 .

[25]  T. Uchida,et al.  GROWTH PROCESS OF AIR-HYDRATES AND DIFFUSION OF AIR MOLECULES IN DEEP ICE SHEET , 1994 .

[26]  J. Barnola,et al.  Changes in the O2/N2 ratio of the atmosphere during recent decades reflected in the composition of air in the firn at Vostok Station, Antarctica , 1994 .

[27]  J. Schwander,et al.  Synchronous changes in atmospheric CH4 and Greenland climate between 40 and 8 kyr BP , 1993, Nature.

[28]  Jerome Chappellaz,et al.  Atmospheric methane, record from a Greenland Ice Core over the last 1000 year , 1993 .

[29]  B. Stauffer,et al.  The age of the air in the firn and the ice at Summit, Greenland , 1993 .

[30]  T. Hondoh,et al.  The electron density distribution in ice Ih determined by single‐crystal x‐ray diffractometry , 1990 .

[31]  D. Raynaud,et al.  Elemental and isotopic composition of occluded O2 and N2 in polar ice , 1989 .

[32]  H. Craig,et al.  Gravitational Separation of Gases and Isotopes in Polar Ice Caps , 1988, Science.

[33]  K. Kobe.  The properties of gases and liquids , 1959 .

[34]  V. Masson-Delmottea,et al.  Quantification of rapid temperature change during DO event 12 and phasing with methane inferred from air isotopic measurements , 2004 .

[35]  J. Severinghaus,et al.  Ninety Per Mil Enrichment of Neon In Firn Air At South Pole , 2002 .

[36]  U. R. S B E Y E R L E, † W E R N E R A E S C H B A C H-H.  A Mass Spectrometric System for the Analysis of Noble Gases and Tritium from Water Samples , 2000 .

[37]  V. Lipenkov,et al.  Extreme fractionation of gases caused by formation of clathrate hydrates in Vostok Antarctic Ice , 1999 .

[38]  W. Paterson.  The Transformation of Snow to Ice , 1994 .

[39]  Jörg Kärger,et al.  Diffusion in Zeolites and Other Microporous Solids , 1992 .

[40]  H. Oeschger,et al.  The environmental record in glaciers and ice sheets : report of the Dahlem Workshop on the Environmental Record in Glaciers and Ice Sheets, Berlin, 1988, March 13-18 , 1989 .

[41]  B. Stauffer,et al.  Air Mixing in Firn and the Age of the Air at Pore Close-Off , 1988, Annals of Glaciology.

[42]  Michael M. Herron,et al.  Firn Densification: An Empirical Model , 1980, Journal of Glaciology.