Decadal oscillation of lakes and aquifers in the upper Great Lakes region of North America: Hydroclimatic implications
- Watras, C. J.
- Read, J. S.
- Holman, K. D.
- Liu, Z.
- Song, Y.Y.
- Watras, A. J.
- Morgan, S.
- Stanley, E. H.
DOIAbstract
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 70years. The historical oscillation (13 years) 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 midlatitude North Pacific that supp...
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