Planning for a wider range of water levels along great lakes and ocean coasts

1990 ◽  
Vol 18 (1) ◽  
pp. 91-103 ◽  
Author(s):  
J. Philip Keillor
Keyword(s):  
Great Lakes ◽  
Water Levels

Three-dimensional bluff evolution in response to seasonal fluctuations in Great Lakes water levels

2020 ◽  
Vol 46 (6) ◽  
pp. 1533-1543 ◽  
Author(s):  
C.A. Volpano ◽  
L.K. Zoet ◽  
J.E. Rawling ◽  
E.J. Theuerkauf ◽  
R. Krueger
Keyword(s):  
Great Lakes ◽  
Three Dimensional ◽  
Water Levels ◽  
Seasonal Fluctuations

Simple regional analyses are still possible once correlated errors are removed

2021 ◽  
Author(s):  
John Crowley ◽  
Jianliang Huang
Keyword(s):  
Great Lakes ◽  
Data Centers ◽  
Least Squares Method ◽  
Temporal Structure ◽  
Harmonic Coefficient ◽  
Water Levels ◽  
Correlated Errors ◽  
Average Technique ◽  
Surface Mass ◽  
Grace Data

<p>Correlated errors in the monthly spherical harmonic coefficient (SHC) solutions provided by the GRACE data centers are estimated and removed using the destriping method of Crowley and Huang (2020). Regional estimates for mass change are calculated across Canada using the simple basin average technique of Swenson and Wahr (2002) as well as a simple mascon approach developed by the Canadian Geodetic Survey. A comparison with mascon solutions from the GRACE data centers demonstrates excellent agreement and in some cases reveals larger amplitudes and added temporal structure. This approach does not require additional constraints/dependencies, smoothing, normalizations or scaling factors and can easily be applied to any regional geometry without the need to calculate a global solution. Solutions tend to agree well when data quality is good and diverge when errors are larger. This is expected and demonstrates the underlying uncertainties that remain. The similarity in solutions using such different methodologies provides confidence in the time series solutions. We conclude with a regional validation that uses water level changes in the Great Lakes of North America to demonstrate the effectiveness of the method. The Great Lakes are large enough that GRACE clearly detects changes in their water levels. At the same time, the lakes are close enough to each other that distinguishing signals between adjacent lakes remains a challenge for any method.</p><p>References:</p><p>Crowley, J.W., and J Huang, A least-squares method for estimating the correlated error of GRACE models, Geophysical Journal International, Volume 221, Issue 3, June 2020, Pages 1736–1749, https://doi.org/10.1093/gji/ggaa104.</p><p>Swenson, S., and J. Wahr, Methods for inferring regional surface-mass anomalies from Gravity Recovery and Climate Experiment (GRACE) measurements of time-variable gravity, J. Geophys. Res., 107(B9), 2193, doi:10.1029/2001JB000576, 2002.</p>

scholarly journals Glacial Isostatic Adjustment of the Laurentian Great Lakes Basin: Using the Empirical Record of Strandline Deformation for Reconstruction of Early Holocene Paleo-Lakes and Discovery of a Hydrologically Closed Phase*

2007 ◽  
Vol 59 (2-3) ◽  
pp. 187-210 ◽  
Author(s):  
C.F. Michael Lewis ◽  
Steve M. Blasco ◽  
Pierre L. Gareau
Keyword(s):  
Great Lakes ◽  
Response Surface ◽  
Lake Michigan ◽  
Vertical Motion ◽  
Water Levels ◽  
Early Holocene ◽  
Great Lakes Basin ◽  
Isostatic Adjustment ◽  
Digital Elevation ◽  
Elevation Model

Abstract In the Great Lakes region, the vertical motion of crustal rebound since the last glaciation has decelerated with time, and is described by exponential decay constrained by observed warping of strandlines of former lakes. A composite isostatic response surface relative to an area southwest of Lake Michigan beyond the limit of the last glacial maximum was prepared for the complete Great Lakes watershed at 10.6 ka BP (12.6 cal ka BP). Uplift of sites computed using values from the response surface facilitated the transformation of a digital elevation model of the present Great Lakes basins to represent the paleogeography of the watershed at selected times. Similarly, the original elevations of radiocarbon-dated geomorphic and stratigraphic indicators of former lake levels were reconstructed and plotted against age to define lake level history. A comparison with the independently computed basin outlet paleo-elevations reveals a phase of severely reduced water levels and hydrologically-closed lakes below overflow outlets between 7.9 and 7.0 ka BP (8.7 and 7.8 cal ka BP) in the Huron-Michigan basin. Severe evaporative draw-down is postulated to result from the early Holocene dry climate when inflows of meltwater from the upstream Agassiz basin began to bypass the upper Great Lakes basin.

A Forecast Model for Great Lakes Water Levels

1976 ◽  
Vol 84 (4) ◽  
pp. 455-465 ◽  
Author(s):  
Barry P. Cohn ◽  
Joseph E. Robinson
Keyword(s):  
Great Lakes ◽  
Forecast Model ◽  
Water Levels

Great Lakes Beginning-of-Month Water Levels and Monthly Rates of Change of Storage

1979 ◽  
Vol 5 (1) ◽  
pp. 11-17 ◽  
Author(s):  
Frank H. Quinn ◽  
Jan A. Derecki ◽  
Raymond N. Kelley
Keyword(s):  
Great Lakes ◽  
Water Levels ◽  
Rates Of Change

Coasts, water levels, and climate change: A Great Lakes perspective

2013 ◽  
Vol 120 (4) ◽  
pp. 697-711 ◽  
Author(s):  
Andrew D. Gronewold ◽  
Vincent Fortin ◽  
Brent Lofgren ◽  
Anne Clites ◽  
Craig A. Stow ◽  
...  
Keyword(s):  
Climate Change ◽  
Great Lakes ◽  
Water Levels
Sign in / Sign up

Export Citation Format

Share Document