Index Catalog // ScholarsArchive@OSU

Modes of Global Climate Variability during Marine Isotope Stage 3 (60–26 ka)

Creator:: Pisias, Nicklas G., Clark, Peter U., and Brook, Edward J.
Abstract:: Recent analysis of 38 globally distributed paleoclimatic records covering Marine Isotope Stage 3 (MIS 3) 60–26 ka demonstrated that the two leading empirical orthogonal functions (EOFs) explaining the data are the Greenland ice-core signal (“northern” signal) and the Antarctic ice-core signal (“southern” signal). Here singular spectral analysis (SSA) is used...
Resource Type:: Article
Full Text:: Marine Isotope Stage 3 (60–26 ka) NICKLAS G. PISIAS College of Oceanic and Atmospheric Sciences, Oregon

Relative timing and variability of atmospheric methane and GISP2 oxygen isotopes between 68 and 86 ka

Creator:: Grachev, Alexi M., Brook, Edward J., Severinghaus, Jeffrey P., and Pisias, Nicklas G.
Abstract:: The global biogeochemical cycle of methane has received wide attention because of methane's role as a greenhouse gas. Measurements of methane in air trapped in Greenland ice cores provide a high-resolution record of methane levels in the atmosphere over the past ~100 ka, providing clues about what controls the methane...
Resource Type:: Article
Full Text:: . Severinghaus,3 and Nicklas G. Pisias4 Received 16 August 2008; revised 20 January 2009; accepted 10 February

Gases in ice cores

Creator:: Bender, Michael, Sowers, Todd, and Brook, Edward J.
Abstract:: Air trapped in glacial ice offers a means of reconstructing variations in the concentrations of atmospheric gases over time scales ranging from anthropogenic (last 200 yr) to glacial/interglacial (hundreds of thousands of years). In this paper, we review the glaciological processes by which air is trapped in the ice and...
Resource Type:: Article
Full Text:: ., Siegenthaler, U. & Stauffer, B. (1986) Nature (London) 324, 237–238. 34. Shackleton, J. H. & Pisias, N. G

Onset of deglacial warming in West Antarctica driven by local orbital forcing

Creator:: Fudge, T. J., Steig, Eric J., Markle, Bradley R., Schoenemann, Spruce W., Ding, Qinghua, Taylor, Kendrick C., McConnell, Joseph R., Brook, Edward J., Sowers, Todd, White, James W. C., Alley, Richard B., Cheng, Hai, Clow, Gary D., Cole-Dai, Jihong, Conway, Howard, Cuffey, Kurt M., Edwards, Jon S., Edwards, R. Lawrence, Edwards, Ross, Fegyveresi, John M., Ferris, David, Fitzpatrick, Joan J., Johnson, Jay, Hargreaves, Geoffrey, Lee, James E., Maselli, Olivia J., Mason, William, McGwire, Kenneth C., Mitchell, Logan E., Mortensen, Nicolai, Neff, Peter, Orsi, Anais J., Popp, Trevor J., and Schauer, Andrew J.
Abstract:: The cause of warming in the Southern Hemisphere during the most recent deglaciation remains a matter of debate[superscript 1,2]. Hypotheses for a Northern Hemisphere trigger, through oceanic redistributions of heat, are based in part on the abrupt onset of warming seen in East Antarctic ice cores and dated to 18,000...
Resource Type:: Article
Full Text:: ., Pisias, N. G., Stocker, T. F. & Weaver, A. J. The role of the thermohaline circulation in abrupt climate

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:: (black dots). (G-I) Greenland temperature reconstructions with ±1σ uncertainty envelope for GISP2 (blue

Multidecadal variability of atmospheric methane, 1000–1800 C.E.

Creator:: Mitchell, Logan E., Brook, Edward J., Sowers, Todd, McConnell, J. R., and Taylor, Kendrick
Abstract:: We present a new high-precision, high-resolution record of atmospheric methane from the West Antarctic Ice Sheet (WAIS) Divide ice core covering 1000–1800 C.E., a time period known as the late preindustrial Holocene (LPIH). The results are consistent with previous measurements from the Law Dome ice core, the only other high-resolution...
Resource Type:: Article
Full Text:: area of ∼2.5 cm2, height of ∼10 cm, and weight of 50–63g. Samples were weighed to the nearest 0.1 g and

MitchellLoganCEOASConstraintsLateHoloceneSupplementaryMaterials.pdf

Creator:: Mitchell, Logan, Brook, Edward J., Lee, James E., Buizert, Christo, and Sowers, Todd
Abstract:: The origin of the late pre-industrial Holocene (LPIH) increase in atmospheric methane concentrations has been much debated. Hypotheses invoking changes in solely anthropogenic sources or solely natural sources have been proposed to explain the increase in concentrations. Here two high-resolution, high-precision ice core methane concentration records from Greenland and Antarctica...
Full Text:: . Severinghaus, N. G. Pisias, Relative timing and variability of atmospheric methane and GISP2 oxygen isotopes

Global climate evolution during the last deglaciation

Creator:: Clark, Peter U., Shakun, Jeremy D., Baker, Paul A., Bartlein, Patrick J., Brewer, Simon, Brook, Edward J., Carlson, Anders E., Cheng, Hai, Kaufman, Darrell S., Liu, Zhengyu, Marchitto, Thomas M., Mix, Alan C., Morrill, Carrie, Otto-Bliesner, Bette L., Pahnke, Katharina, Russell, James M., Whitlock, Cathy, Adkins, Jess F., Blois, Jessica L., Clark, Jorie, Colman, Steven M., Curry, William B., Flower, Ben P., He, Feng, Johnson, Thomas C., Lynch-Stieglitz, Jean, Markgraf, Vera, McManus, Jerry, Mitrovica, Jerry X., Moreno, Patricio I., and Williams, John W.
Abstract:: Deciphering the evolution of global climate from the end of the Last Glacial Maximum approximately 19 ka to the early Holocene 11 ka presents an outstanding opportunity for understanding the transient response of Earth's climate system to external and internal forcings. During this interval of global warming, the decay of...
Resource Type:: Article
Full Text:: Brooka, Anders E. Carlsonf,g, Hai Chengh,i, Darrell S. Kaufmanj, Zhengyu Liug,k, Thomas M. Marchittol

High-resolution glacial and deglacial record of atmospheric methane by continuous-flow and laser spectrometer analysis along the NEEM ice core

Creator:: Chappellaz, J., Stowasser, C., Blunier, T., Baslev-Clausen, D., Brook, Edward J., Dallmayr, R., Fain, X., Lee, J. E., Mitchell, L. E., Pascual, O., Romanini, D., Rosen, J., and Schuepbach, S.
Abstract:: The Greenland NEEM (North Greenland Eemian Ice Drilling) operation in 2010 provided the first opportunity to combine trace-gas measurements by laser spectroscopic instruments and continuous-flow analysis along a freshly drilled ice core in a field-based setting. We present the resulting atmospheric methane (CH₄) record covering the time period from 107.7...
Resource Type:: Article
Full Text:: typically 40–50 g systematically selected along the core. The usual an- alytical method combines a melting

ScholarsArchive@OSU

Modes of Global Climate Variability during Marine Isotope Stage 3 (60–26 ka)

Relative timing and variability of atmospheric methane and GISP2 oxygen isotopes between 68 and 86 ka

Gases in ice cores

Onset of deglacial warming in West Antarctica driven by local orbital forcing

Greenland Temperature Response to Climate Forcing during the Last Deglaciation

Multidecadal variability of atmospheric methane, 1000–1800 C.E.

MitchellLoganCEOASConstraintsLateHoloceneSupplementaryMaterials.pdf

Global climate evolution during the last deglaciation

High-resolution glacial and deglacial record of atmospheric methane by continuous-flow and laser spectrometer analysis along the NEEM ice core

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