Paleoglaciology of Alaska
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https://cmr.earthdata.nasa.gov/search/concepts/C1214614488-SCIOPS.html
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The Paleoglaciology of Alaska project involves scientists to estimate past
climate parameters from glacial-geologic records. This project combines field
research and cosmogenic-surface-exposure dating with GIS analysis of Alaskan
glaciers that existed during the Last Glacial Maximum (LGM).
-Former glacier extents, coupled with high-resolution Digital Elevation Models
(DEM's), permit us to quantify past Equilibrium Line Altitudes (paleo-ELA's).
-For each glacier, this parameter records a balance between winter
precipitation and summer temperature.
-Dense spatial arrays of hundreds of paleoELA's within 8 broad mountainous
regions clarify: microclimatic vs. regional climatic controls on glacier
growth; synoptic views of atmospheric moisture circulation; and spatially
varying LGM aridity for comparison with numerical climate simulations.
[Summary provided by the University of Colorado.]
提供机构:
SCIOPS



