This data set is part of the West Antarctic Ice Sheet cores (WAISCORES) project, an NSF-funded project to understand the influence of the West Antarctic Ice Sheet on climate and sea level change. WAISCORES researchers acquired and analyzed ice cores from the Siple Dome, in the Siple Coast region, West Antarctica. This data set includes melt layers and annual layer data for Siple Dome cores A ... through J, and upstream core C (UpC). Cores were examined on a light table after the core had been sectioned longitudinally and samples removed for isotopic, chemical, and other analyses, and after the surface had been smoothed using a planer. Major stratigraphic features were noted, such as coarse-grained and fine-grained firn at shallow depths, and coarse-bubbled and fine-bubbled ice at greater depth. Melt layers were identified as bubble-free or nearly-bubble-free zones. Core lengths ranged from 30 to 133 meters. Data in this collection were obtained in the summer of 1997. The data set is available via FTP as ACSII data (.dat), metadata (.meta) and text (.txt) files.
Pennsylvania State University
Department of Geosciences
517 Deike Building
Province or State:
Alley, R. B. 2000. The Younger Dryas cold interval as viewed from central Greenland. Quaternary Science Reviews 19, 213-226. Alley, R. B. and P. U. Clark. 1999. The deglaciation of the northern hemisphere: a global perspective. Annual Reviews of Earth and Planetary Sciences 27, 149-182. Alley, R. B. and K. M. Cuffey. 2001. Oxygen- and hydrogen-isotopic ratios of water in precipitation: Beyond ... paleothermometry. In J.W. Valley and D. Cole, eds., Stable Isotope Geochemistry, Reviews in Mineralogy and Geochemistry, v. 43, Mineralogical Society of America. Alley, R. B. and J. J. Fitzpatrick. 1999. Conditions for bubble elongation in cold ice-sheet ice. Journal of Glaciology 45, 147-154. Alley, R. B., A. M. Agustsdottir and P. J. Fawcett. 1999. Ice-core evidence of Late-Holocene reduction in north Atlantic ocean heat transport, in Clark, P.U., R.S. Webb and L.D. Keigwin, eds., Mechanisms of Global Climate Change at Millennial Time Scales, Geophysical Monograph 112, American Geophysical Union, Washington, DC, 301-312. Alley, R. B., S. Anandakrishnan and P. Jung. 2001. Stochastic resonance in the North Atlantic. Paleoceanography 16, 190-198. Alley, R. B., S. Anandakrishnan, P. Jung and A. Clough. 2001 Stochastic resonance in the north Atlantic: Further Insights. In D. Seidov, B.J. Haupt and M. Maslin, eds., The Oceans and Rapid Climate Change: Past, Present and Future, Geophysical Monograph 126, p. 57-68. Alley, R. B., E. J. Brook and S. Anandakrishnan. 2002. A northern lead in the orbital band: North-south phasing of ice-age events. Quaternary Science Reviews, 21, 431-441. Alley, R. B., P. U. Clark, L. D. Keigwin and R. S. Webb. 1999. Making sense of millennial-scale climate change, in Clark, P.U., R.S. Webb and L.D. Keigwin, eds., Mechanisms of Global Climate Change at Millennial Time Scales, Geophysical Monograph 112, American Geophysical Union, Washington, DC, 385-394. Clark, P. U., R. B. Alley and D. Pollard. 1999. Northe rn hemisphere ice-sheet influences on global climate change. Science 286, 1103-1111. Spencer, M., R.B. Alley, and T.T. Creyts. 2001. Firn densification: an empirical model. Journal of Glaciology 47(159) 671-676. Steig, E. J. and R. B. Alley. 2002. Phase relationships between Antarctic and Greenland climate records. Annals of Glaciology 35(1), 451-456.