Changes in mid-troposphere snow accumulation on Mt. Logan, Yukon, over the last three centuries

EXTRACT (SEE PDF FOR FULL ABSTRACT):A net snow accumulation time series is presented. It is derived from a 102.5 m ice core retrieved from Mt. Logan at an altitude of 5340 m a.s.l. Annual increments are identified using stable isotopes, trace chemistry, and beta activity. . The resulting time series...

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Bibliographic Details
Main Author: Holdsworth, Gerald
Format: Other/Unknown Material
Language:English
Published: 1990
Subjects:
Atmospheric Sciences
Chemistry
Earth Sciences
PACLIM
Yukon
ice core
Online Access:http://hdl.handle.net/1834/31401
Description
Summary:EXTRACT (SEE PDF FOR FULL ABSTRACT):A net snow accumulation time series is presented. It is derived from a 102.5 m ice core retrieved from Mt. Logan at an altitude of 5340 m a.s.l. Annual increments are identified using stable isotopes, trace chemistry, and beta activity. . The resulting time series of nearly 300 years seems to indicate a lower mean accumulation from AD 1700 to the mid-19th century than after that time. The last 100 years of the series correlates significantly with certain instrumental station records at mid-northern latitudes.

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