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November 4, 2021
Drogpa Nagtsang Glacier, China 2021 Snow Line Positions Lake Expansion
Drogpa Nagtsang Glacier, China retreat and proglacial expansion in 1993 and 2021 Landsat images. Red arrow is the 1993 terminus, yellow arrow the 2021 terminus and yellow dots are the snowline. Drogpa Nagtsang Glacier, China is 30 km west of Mount Everest terminating in an expanding proglacial lake. The glacier begins on the Nepal border at 6400 m, and its meltwater enters the Tamakoshi River that supplies the Upper Tamakoshi …
December 28, 2020
Nangpa La and Nup La, Mount Everest Region are snow free through December 2020
Nangpa La (NPL) and Nup La (NL) in Landsat images from 10-13-2020 and 12-16-2020, CO=Cho Oyu Peak and purple dots indicate the snowline. Both passes can be crossed without traversing snow on December 16. The winter monsoon for the Nepal Himalaya is a dry cold period with limited precipitation or new snow accumulation. Mount Everest region glaciers are summer accumulation type glaciers with ~75% of annual precipitation occurring during the …
Dean of Academic Affairs at Nichols College and Professor of Environmental Science at Nichols College in Massachusetts since 1989. Glaciologist directing the North Cascade Glacier Climate Project since 1984. This project monitors the mass balance and behavior of more glaciers than any other in North America.