Earth Surface Dynamics
Earth Surface Dynamics
ESurf
Articles | Volume 11, issue 5
Articles | Volume 11, issue 5
https://doi.org/10.5194/esurf-11-849-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-11-849-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 11, issue 5
Research article
 | 
08 Sep 2023
Research article |  | 08 Sep 2023

Spatially coherent variability in modern orographic precipitation produces asymmetric paleo-glacier extents in flowline models: Olympic Mountains, USA

Andrew A. Margason, Alison M. Anders, Robert J. C. Conrick, and Gerard H. Roe

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Short summary
We examine differences in glacier extent in the Olympic Mountains, USA, where modern precipitation in east-facing valleys is only 50 % of that in west-facing valleys. During the Last Glacial Period, there were very small glaciers in the east and very large glaciers in the west. We use climate data and glacier models to show that the modern spatial pattern of precipitation is likely to have been similar during the past glaciation and may be sufficient to explain the asymmetry of glacier extent.
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