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April 3, 2023
Sierra Nevada, California Glaciers Rapid Decline 2018-2022
MacClure and Lyell Glacier in 2018 and 2022 Sentinel images illustrating a decline from 0.09 to 0.06 km² The Sierra Nevada, California has a number of small glaciers that have clung to the north facing slopes of the High Sierra. An inventory of these glaciers completed by Basagic and Fountain (2011) identified glacier area in 2004, which had declined by 55% since 1903. At that time the MacClure Glacier had …
September 30, 2014
Whitney Glacier Retreat and Thinning, Mount Shasta, California
Mount Shasta is a stratovolcano home to the largest glaciers in California. Of the seven glaciers on the mountain Whitney Glacier on the north side is the longest. The last two years 2013 and 2014 have seen hot dry summers separated by a dry winter in 2013/14, see below, how are the glaciers responding? In 1981 USGS (Driedger and Kennard, 1986) mapped the area and volume of several of 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.