Statistics – Computation
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011georl..3824502p&link_type=abstract
Geophysical Research Letters, Volume 38, Issue 24, CiteID L24502
Statistics
Computation
Computational Geophysics: Cellular Automata, Cryosphere: Glaciers, Geochronology: Cosmogenic-Nuclide Exposure Dating (4918), Global Change: Cryospheric Change (0776), Geographic Location: Asia
Scientific paper
Differences in the timing of glacial advances, which are commonly attributed to climatic changes, can be due to variations in valley topography. Cosmogenic 10Be dates from 24 glacial moraine boulders in 5 valleys define two age populations, late-glacial and early Holocene. Moraine ages correlate with paleoglacier valley hypsometries. Moraines in valleys with lower maximum altitudes date to the late-glacial, whereas those in valleys with higher maximum altitudes are early Holocene. Two valleys with similar equilibrium-line altitudes (ELAs), but contrasting ages, are <5 km apart and share the same aspect, such that spatial differences in climate can be excluded. A glacial mass-balance cellular automata model of these two neighboring valleys predicts that change from a cooler-drier to warmer-wetter climate (as at the Holocene onset) would lead to the glacier in the higher altitude catchment advancing, while the lower one retreats or disappears, even though the ELA only shifted by ∼120 m.
Burbank Douglas W.
Heimsath Arjun M.
Humphrey Neil F.
Oskin Michael
Pratt-Sitaula Beth
No associations
LandOfFree
Topographic control of asynchronous glacial advances: A case study from Annapurna, Nepal does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Topographic control of asynchronous glacial advances: A case study from Annapurna, Nepal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Topographic control of asynchronous glacial advances: A case study from Annapurna, Nepal will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1608979