Recent Recession and Thinning of Okpilak Glacier, Northeastern Alaska | Zendy

Edward G. Sable | Zendy

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Recent Recession and Thinning of Okpilak Glacier, Northeastern Alaska

Author(s) -

Edward G. Sable

Publication year - 1961

Publication title -

arctic

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.503

H-Index - 59

eISSN - 1923-1245

pISSN - 0004-0843

DOI - 10.14430/arctic3672

Subject(s) - thinning , glacier , geology , glacial period , physical geography , tidewater glacier cycle , glacier mass balance , glacier ice accumulation , geomorphology , oceanography , ice stream , geography , forestry , cryosphere , sea ice , pregnancy , lactation , ice calving , biology , genetics

Compares Aug. 1958 photographs and observations of this valley glacier in the Romanzof Mts. with those of Leffingwell in 1907, cf. No. 9835. The indicated recession and thinning of the glacier in 51 years are confirmed by aerial photographs and topographic maps. The 1000 ± 100 ft, mean rate 20 ft/yr, probably increased in the 1950s. Thinning, estimated at 150 ft in the lower 1.2 miles of the glacier, occurred at about 3 ft/yr. The advance from which the ice is retreating is correlated with the Fan Mountain glaciation. Similar evidences of retreat and thinning are found in neighboring glaciers.

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