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Decadal oscillation of lakes and aquifers in the upper Great Lakes region of North America: hydroclimatic implications

Geophysical Research Letters

By:
, , , , , , ,
DOI: 10.1002/2013GL058679

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Abstract

We report a unique hydrologic time-series which indicates that water levels in lakes and aquifers across the upper Great Lakes region of North America have been dominated by a climatically-driven, near-decadal oscillation for at least 70 years. The historical oscillation (~13y) is remarkably consistent among small seepage lakes, groundwater tables and the two largest Laurentian Great Lakes despite substantial differences in hydrology. Hydrologic analyses indicate that the oscillation has been governed primarily by changes in the net atmospheric flux of water (P-E) and stage-dependent outflow. The oscillation is hypothetically connected to large-scale atmospheric circulation patterns originating in the mid-latitude North Pacific that support the flux of moisture into the region from the Gulf of Mexico. Recent data indicate an apparent change in the historical oscillation characterized by a ~12y downward trend beginning in 1998. Record low water levels region-wide may mark the onset of a new hydroclimatic regime.

Geospatial Extents

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Decadal oscillation of lakes and aquifers in the upper Great Lakes region of North America: hydroclimatic implications
Series title:
Geophysical Research Letters
DOI:
10.1002/2013GL058679
Volume
41
Issue:
2
Year Published:
2014
Language:
English
Publisher:
Wiley
Contributing office(s):
Center for Integrated Data Analytics
Description:
7 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Geophysical Research Letters
First page:
456
Last page:
462
Number of Pages:
7
Country:
United States
Other Geospatial:
Upper Great Lakes Region