Journal of Paleolimnology 32: 137–148, 2004. # 2004 Kluwer Academic Publishers. Printed in the Netherlands.

Lamination thickness measurements in sediments from Lake Tuborg, northern Ellesmere Island, Canada document an increase in high-energy hydrologic discharge events from 1865 to 1962. The timing of these events corresponds with evidence for an increase in the amount of melt on the adjacent Agassiz Ice...

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Bibliographic Details
Main Authors: Sheldon V. Smith, Raymond S. Bradley, Mark B. Abbott
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Published: 2003
Subjects:
Agassiz Ice Cap
Canada
Ellesmere Island
Eureka
Lake Tuborg
Ice cap
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.494.5733
http://www.geo.umass.edu/faculty/bradley/smith2004.pdf
Description
Summary:Lamination thickness measurements in sediments from Lake Tuborg, northern Ellesmere Island, Canada document an increase in high-energy hydrologic discharge events from 1865 to 1962. The timing of these events corresponds with evidence for an increase in the amount of melt on the adjacent Agassiz Ice Cap, as recorded in ice cores. There appears to have been a non-linear change in depositional energy resulting from a dramatic increase in Agassiz meltwater discharge, particularly after1908. A strong correlation between the Lake Tuborg varve thickness record, the amount of melting on the Agassiz Ice Cap and Eureka 900 mb air temperature records suggests that changes in the height of the freezing level in the atmosphere have affected the extent of summer melting on the Agassiz Ice Cap, leading to high volume discharge events and associated sediment flux to Lake Tuborg.

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