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MitchellLoganCEOASObservingModelingInfluence.pdf

Creator:: Mitchell, Logan E., Buizert, Christo, Brook, Edward J., Rhodes, Rachael H., and et al.
Abstract:: Interpretation of ice core trace gas records depends on an accurate understanding of the processes that smooth the atmospheric signal in the firn. Much work has been done to understand the processes affecting air transport in the open pores of the firn, but a paucity of data from air trapped...
Full Text:: , Daniel Baggenstos6, Anais Orsi6,7, Jeffrey Severinghaus6, Richard B. Alley5, Mary Albert8, Rachael H

A first chronology for the North Greenland Eemian Ice Drilling (NEEM) ice core

Creator:: Rasmussen, S. O., Abbott, P. M., Blunier, T., Bourne, A. J., Brook, Edward J., Buchardt, S. L., Buizert, Christo, Chappellaz, J., Clausen, H. B., Cook, E., Dahl-Jensen, D., Davies, S. M., Guillevic, M., Kipfstuhl, S., Laepple, T., Seierstad, I. K., Severinghaus, J. P., Steffensen, J. P., Stowasser, C., Svensson, A., Vallelonga, P., Vinther, B. M., Wilhelms, F., and Winstrup, M.
Abstract:: A stratigraphy-based chronology for the North Greenland Eemian Ice Drilling (NEEM) ice core has been derived by transferring the annual layer counted Greenland Ice Core Chronology 2005 (GICC05) and its model extension (GICC05modelext) from the NGRIP core to the NEEM core using 787 match points of mainly volcanic origin identified...
Resource Type:: Article
Full Text:: . M. Abbott2, T. Blunier1, A. J. Bourne2, E. Brook3, S. L. Buchardt1, C. Buizert3, J. Chappellaz4, H

Precise interpolar phasing of abrupt climate change during the last ice age

Creator:: Buizert, Christo, Adrian, Betty, Ahn, Jinho, Albert, Mary, Alley, Richard B., Baggenstos, Daniel, Bauska, Thomas K., Bay, Ryan C., Bencivengo, Brian B., Bentley, Charles R., Brook, Edward J., Chellman, Nathan J., Clow, Gary D., Cole-Dai, Jihong, Conway, Howard, Cravens, Eric, Cuffey, Kurt M., Dunbar, Nelia W., Edwards, Jon S., Fegyveresi, John M., Ferris, Dave G., Fitzpatrick, Joan J., Fudge, T. J., Gibson, Chris J., Gkinis, Vasileios, Goetz, Joshua J., Gregory, Stephanie, Hargreaves, Geoffrey M., Iverson, Nels, Johnson, Jay A., Jones, Tyler R., Kalk, Michael L., Kippenhan, Matthew J., Koffman, Bess G., Kreutz, Karl, Kuhl, Tanner W., Lebar, Donald A., Lee, James E., Marcott, Shaun A., Markle, Bradley R., Maselli, Olivia J., McConnell, Joseph R., McGwire, Kenneth C., Mitchell, Logan E., Mortensen, Nicolai B., Neff, Peter D., Nishiizumi, Kunihiko, Nunn, Richard M., Orsi, Anais J., Pasteris, Daniel R., Pedro, Joel B., Pettit, Erin C., Price, P. Buford, Priscu, John C., Rhodes, Rachael H., Rosen, Julia L., Schauer, Andrew J., Schoenemann, Spruce W., Sendelbach, Paul J., Severinghaus, Jeffrey P., Shturmakov, Alexander J., Sigl, Michael, Slawny, Kristina R., Souney, Joseph M., Sowers, Todd A., Spencer, Matthew K., Steig, Eric J., Taylor, Kendrick C., Twickler, Mark S., Vaughn, Bruce H., Voigt, Donald E., Waddington, Edwin D., Welten, Kees C., Wendricks, Anthony W., White, James W. C., Winstrup, Mai, Wong, Gifford J., and Woodruff, Thomas E.
Abstract:: The last glacial period exhibited abrupt Dansgaard–Oeschger climatic oscillations, evidence of which is preserved in a variety of Northern Hemisphere palaeoclimate archives¹. Ice cores show that Antarctica cooled during the warm phases of the Greenland Dansgaard–Oeschger cycle and vice versa[superscript 2,3], suggesting an interhemispheric redistribution of heat through a mechanism...
Resource Type:: Article
Full Text:: –38 N G R IP δ 18 O (‰ ) 350 400 450 500 550 600 650 W D C C H 4 (p .p .b .) –42

Atmospheric methane during the last four glacial-interglacial cycles: Rapid changes and their link with Antarctic temperature

Creator:: Delmotte, M., Chappellaz, J., Brook, Edward J., Yiou, P., Barnola, J. M., Goujon, C., Raynaud, D., and Lipenkov, V. I.
Abstract:: Atmospheric methane (CH₄) recorded in Antarctic ice cores represents the closest ice proxy available for Greenland temperature changes beyond times when Greenland climate records are available. The record over four climatic cycles from the Vostok ice core offers the opportunity to study the phase relationship between Greenland and Antarctic climate...
Resource Type:: Article
Full Text:: D/H ratios in Vostok ice (dD), to further constrain the CH4-climate phase relationship during short

Rapid Holocene Deglaciation of the Labrador Sector of the Laurentide Ice Sheet

Creator:: Carlson, Anders E., Clark, Peter U., Raisbeck, Grant M., and Brook, Edward J.
Abstract:: Retreat of the Laurentide Ice Sheet (LIS) following the Last Glacial Maximum 21 000 yr BP affected regional to global climate and accounted for the largest proportion of sea level rise. Although the late Pleistocene LIS retreat chronology is relatively well constrained, its Holocene chronology remains poorly dated, limiting our...
Resource Type:: Article
Full Text:: Rinterknecht (2003), and 10Be/9Be ratios were measured at the AMS facility at Gif sur Yvette, France (Raisbeck

Effective attenuation lengths of cosmic rays producing ¹⁰Be and ²⁶Al in quartz: Implications for exposure age dating

Creator:: Brown, Erik Thorson, Brook, Edward J., Raisbeck, Grant M., Yiou, Francoise, and Kurz, Mark D.
Abstract:: We have measured cosmic ray produced ¹⁰Be (t₁/₂ = 1.5 My) and ²⁶Al (t₁/₂ = 0.72 My) as functions of depth in a core of quartz sandstone bedrock collected in South Victoria Land, Antarctica. These data were used to place limits on the exposure age and erosion rate of the...
Resource Type:: Article
Full Text:: ) that attenuation lengths increase with increasing atomic weight (reviewed in Schopper et al., 1967). h

CH₄ and δ¹⁸O of O₂ records from Antarctic and Greenland ice: A clue for stratigraphic disturbance in the bottom part of the Greenland Ice Core Project and the Greenland Ice Sheet Project 2 ice cores

Creator:: Jerome Chappellaz, Brook, Edward J., Thomas Blunier, Bruno Malaize, Blunier, Thomas, Chappellaz, Jerome, and Malaize, Bruno
Abstract:: The suggestion of climatic instability during the last interglacial period (Eem), based on the bottom 10% of the Greenland Ice core Project (GRIP) isotopic profile, has been questioned because the bottom record from the neighboring Greenland Ice Sheet Project 2 (GISP2) core (28 km away) is strikingly different over the...
Resource Type:: Article
Full Text:: , Commissariat h l'Energie Atomique, Gif sur Yvette, France. Copyright 1997 by the American Geophysical Union

Chronology reconstruction for the disturbed bottom section of the GISP2 and the GRIP ice cores: Implications for Termination II in Greenland

Creator:: Suwa, Makoto, von Fischer, Joseph C., Bender, Michael L., Landais, Amaelle, and Brook, Edward J.
Abstract:: We have reconstructed chronology for the disturbed bottom parts of the GRIP and GISP2 ice cores using the combined paleoatmospheric records of CH₄ concentration and δ¹⁸O[subscript atm] in the trapped gases. Our reconstructed ages for basal ice samples are based on comparison of published measurements of CH₄ and δ¹⁸O[subscript atm]...
Resource Type:: Article
Full Text:: Sciences du Climat et de l’Environnement, CEA-CNRS, Gif sur Yvette, France Edward J. Brook Department of

Impact of the Ocean’s Overturning Circulation on Atmospheric CO2

Creator:: Schmittner, Andreas, Brook, Edward J., and Ahn, Jinho
Abstract:: A coupled climate-carbon cycle model and ice core CO2 data from the last glacial period are used to explore the impact of changes in ocean circulation on atmospheric CO2 concentrations on millennial time scales. In the model, stronger wind driven circulation increases atmospheric CO2. Changes in the buoyancy driven deep...
Resource Type:: Part of Book

Greenland Temperature Response to Climate Forcing during the Last Deglaciation

Creator:: Buizert, Christo, Gkinis, Vasileios, Severinghaus, Jeffrey P., He, Feng, Lecavalier, Benoit S., Kindler, Philippe, Leuenberger, Markus, Carlson, Anders E., Vinther, Bo, Masson-Delmotte, Valerie, White, James W. C., Liu, Zhengyu, Otto-Bliesner, Bette, and Brook, Edward J.
Abstract:: Greenland ice core water isotopic composition (δ¹⁸O) provides detailed evidence for abrupt climate changes, but is by itself insufficient for quantitative reconstruction of past temperatures and their spatial patterns. We investigate Greenland temperature evolution during the last deglaciation using independent reconstructions from three ice cores and simulations with a coupled...
Resource Type:: Article
Full Text:: -Yvette, France. 9Laboratory for Climate and Ocean-Atmosphere Studies, Peking University, Beijing 100871

ScholarsArchive@OSU

MitchellLoganCEOASObservingModelingInfluence.pdf

A first chronology for the North Greenland Eemian Ice Drilling (NEEM) ice core

Precise interpolar phasing of abrupt climate change during the last ice age

Atmospheric methane during the last four glacial-interglacial cycles: Rapid changes and their link with Antarctic temperature

Rapid Holocene Deglaciation of the Labrador Sector of the Laurentide Ice Sheet

Effective attenuation lengths of cosmic rays producing ¹⁰Be and ²⁶Al in quartz: Implications for exposure age dating

CH₄ and δ¹⁸O of O₂ records from Antarctic and Greenland ice: A clue for stratigraphic disturbance in the bottom part of the Greenland Ice Core Project and the Greenland Ice Sheet Project 2 ice cores

Chronology reconstruction for the disturbed bottom section of the GISP2 and the GRIP ice cores: Implications for Termination II in Greenland

Impact of the Ocean’s Overturning Circulation on Atmospheric CO2

Greenland Temperature Response to Climate Forcing during the Last Deglaciation

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