Abstract
AbstractMountain glacier systems are decreasing in volume worldwide yet relatively little is known about their upper reaches (>5000 m). Here we show, based on the world’s highest ice core and highest automatic weather stations, the significant and increasing role that melting and sublimation have on the mass loss of even Mt. Everest’s highest glacier (South Col Glacier, 8020 m). Estimated contemporary thinning rates approaching ~2 m a−1 water equivalent (w.e.) indicate several decades of accumulation may be lost on an annual basis now that glacier ice has been exposed. These results identify extreme sensitivity to glacier surface type for high altitude Himalayan ice masses and forewarn of rapidly emerging impacts as Mt. Everest’s highest glacier appears destined for rapid retreat.
Funder
National Geographic Society
Publisher
Springer Science and Business Media LLC
Subject
Atmospheric Science,Environmental Chemistry,Global and Planetary Change
Reference39 articles.
1. Hock, R. et al. IPCC Special Report on the Ocean and Cryosphere in a Changing Climate (eds. Pörtner, H.-O. et al.) 131–202 (2019).
2. Immerzeel, W. W. et al. Importance and vulnerability of the world’s water towers. Nature 577, 364–369 (2019).
3. Mayewski, P. A., Perry, L. B., Matthews, T. & Birkel, S. D. Climate change in the hindu kush himalayas: basis and gaps. One Earth 3, 551–555 (2020).
4. Mayewski, P. A. et al. Pushing climate change science to the roof of the world. One Earth 3, 556–560 (2020).
5. Matthews, T. et al. Going to extremes: installing the world’s highest weather stations on Mount Everest. Bull. Am. Meteorol. Soc. 101, E1870–E1890 (2020).
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