RECENT TRENDS IN THE LEMON CREEK GLACIER, ALASKA

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Abstract
This paper reports the 1989 re-mapping of Lemon Creek Glacier, Alaska, and, in conjunction with 1948 and 1957 maps of the glacier, calculation of 9-year and 32-year changes of glacier mass and terminal position. As in the earlier maps, the new map is at a scale of 1:10,000 with a 5-m contour interval for the glacier surface. Changes between 1957 and 1989 were determined by use of the geodetic method for determining mass balance. Net water equivalent change was -118.71 × 106 m3. The glacier's respective 1957–1989 area and volume losses were 0.878 × 106 m2 and -131.90 × 106 m3 (14.6%). The terminus retreated an average 700 m.