Documentation for PISM, the Parallel Ice Sheet Model


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applications:201607 [2016/07/07 22:30] (current)
Ed Bueler created by copy of future_applications:201607
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 +====== July 2016 ======
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 +| **[[http://​​10/​639/​2016/​|Numerical simulations of the Cordilleran ice sheet through the last
 +glacial cycle]]** ||
 +| **investigators**:​ | [[http://​​people/​gz/​juliens|J. Seguinot]], I. Rogozhina, A.P. Stroeven, M. Margold, and J. Kleman|
 +| **journal**:​ | [[http://​​index.html|The Cryosphere]] |
 +This paper uses PISM, calibrated against field-based evidence, to reconstruct the Cordilleran ice sheet'​s history through the last glacial cycle. ​ Until now, geological studies of this major North American ice sheet have lacked ice-sheet-wide spatial reconstructions.
 +Simulations are driven by time-dependent temperature offsets from six proxy records located around the globe. ​ Although model response to evolving climate forcing is variable, all simulations produce two major glaciations during marine oxygen isotope stages 4 (62.2–56.9 ka) and 2 (23.2–16.9 ka).  The timing of glaciation is better reproduced using temperature reconstructions from Greenland and Antarctic ice cores than from regional oceanic sediment cores. ​ During most of the cycle the modelled ice cover is discontinuous and restricted to high mountain areas. ​ However, a central ice dome in the Skeena Mountains persists throughout, and it hosts the last remains of Cordilleran ice into the middle Holocene (6.7 ka).
 +<WRAP clear></​WRAP>​
applications/201607.txt · Last modified: 2016/07/07 22:30 by Ed Bueler
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