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ESS 595, Autumn 2008
READINGS on Polar Firn WEEK 1
Herron, M.M. and C.C.Langway Jr. 1980. The densification of firn: an empirical model. Journal of Glaciology 25(93), 373-385.
This paper is a classic. It introduced to the broad glaciological community the key ideas of 3 regimes of compaction, and inferred controlling parameters from density-depth profiles in a wide range of polar climates. Discussion Leaders: Jessica and Ed WEEK 2
Li Jun and Jay Zwally at NASA have investigated the transient behavior of firn compaction, with a view to correctly interpreting satellite altimetry surveys of ice-sheet elevation. Li Jun and H.J. Zwally. 2002. Modeled seasonal variations of firn density induced by steady-state surface air-temperature cycle. Annals of Glaciology 34, 299-302. Zwally, H. J. and Li Jun. 2002. Seasonal and interannual variations of firn densification and ice-sheet surface elevation at the Summit of Discussion Leaders: Brooke and T.J. WEEK 3
Arthern, R. J. and Wingham, D. J. 1998. The natural fluctuations of firn densification and their effect on the geodetic determination of ice sheet mass balance. Clim. Change 40, 605624.
...and erratum Discussion Leaders: Brooke and Regina Week 4
Reeh, N. 2008. A nonsteady-state firn-densification model for the percolation zone of a glacier. JGR(113).
Discussion Leaders: Michelle and Jessica Week 5
Alley, R.B. 1987. Firn densification by grain boundary sliding: a first model. Journal De Physique(48). Read for results and discussion, methods section is optional: Freitag, J., F. Wilhelm, S. Kipfstuhl. 2004. Microstructure-dependent densification of polar firn derived from X-ray microtomography. J. Glaciol. 50(169)243-250. Discussion Leaders: Kristin and T.J. Week 6
Arnaud, L., et al. 2000. Physical modeling of the densification of snow/firn and ice in the upper part of polar ice sheets. Physics of Ice Core Records. 285-305
Discussion Leaders: Kristin and Brooke Week 7
Martinerie, P., V.Y. Lipenkov, D. Raynaud, J. Chappellaz, N.I. Barkov, and C. Lorius. 1994. JGR 99.
Optional: Discussion Leaders: Eric and Peter Week 8
Severinghaus, et al. 1998. Timing of abrupt climate change at the end of the Younger Dryas interval from thermally fractionated gases in polar ice. Nature (391).
Optional: Blunier, et al. 2005.Isotopic view on nitrate loss in Antarctic surface snow. GRL (32). Discussion Leaders: Michelle, Peter Week 9
Wilkinson, D.S. 1988. A pressure-sintering model for the densification of polar firn and glacier ice. J. Glac 34(116).
Rick, U.K. and M.R. Albert. 2004. Microstructure and permeability in the near-surface firn near a potential US deep-drilling site in West Antarctica. Annals of Glaciology (39)62-66. Discussion Leaders: Eric and Regina
Wilkinson, D.S., and M.F. Ashby. 1975. Pressure sintering by power law creep. Acta Metallurgica 23, 1277-1285. Week 10
Spencer, M.K., et al. 2006 Developing a bubble number-density paleoclimate indicator for glacier ice. J. Glac. 52(178) 358-364. Optional: Spencer, M.K., et al. 2001. Preliminatry firn-densification model with 38-site dataset. J. Glac. 47(159) 671-676. Discussion Leaders: Jessica and T.J. |
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Last modified: 3/24/2009 2:15 PM |