Environmental Impacts on the Development and Dune Activity of Oxbow Lake Along the Southwest Coast of Lake Michigan at Saugatuck, Michigan USA

Environmental Impacts on the Development and Dune Activity of Oxbow Lake Along the Southwest Coast of Lake Michigan at Saugatuck, Michigan USA
Author: Kira Joy Baca
Publisher:
Total Pages: 150
Release: 2013
Genre: Climatology
ISBN:

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Coastal dunes of Lake Michigan and corresponding down-wind lakes are studied for links between dune activity and climatic forcing; to date, little is certain about climate control on dune activity. By unveiling relationships between climate variables and dune activity, it becomes possible to associate the activity of dunes with certain climatic conditions. In this study wind, temperature, precipitation, drought, evaporation, and lake level are correlated individually with 210Pb/137Cs/7Be dated sand deposits from core samples taken in a small lake in the lee side of a dune ridge near Saugatuck, Michigan. Linear regressions were run to evaluate the strength of their relationship year-by-year, and offsets of one to two years. Visual correlations were also attempted by evaluating the trends in the annular data sets. While year-by-year R2 values were not strong, or mixed results made them inconclusive, visually examined trends showed more promising correlations. The strongest correlations existed between sand percent by weight, drought, and lake level. Discrepancies between trends were acceptable within the limits of associated error with isotopic dating methods, and showed a relationship between rising or high lake levels, wet conditions, and strong eolian activity (based on increased presence of sand in lake sediment). The implications of this research are that dune activity is linked to periods of wet conditions and storminess, and results can be used as a modern analogue for coastal dune activity during times of high lake level.

Ancient Oceans, Orogenic Uplifts, and Glacial Ice

Ancient Oceans, Orogenic Uplifts, and Glacial Ice
Author: Lee J. Florea
Publisher: Geological Society of America
Total Pages: 442
Release: 2018
Genre: Geology
ISBN: 0813700515

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"This volume includes compelling science and field trips in Indiana, Illinois, Kentucky, Michigan, and Ohio. Take a journey through the Heartland to sand dunes, outcrops, quarries, rivers, caves, and springs that connect Paleozoic stratigraphy with the assembly of Gondwana, continental glaciation with Quaternary geomorphology and hydrology, and landscape with the human environment"--

Coastline and Dune Evolution along the Great Lakes

Coastline and Dune Evolution along the Great Lakes
Author: Timothy G. Fisher
Publisher: Geological Society of America
Total Pages: 244
Release: 2014-07-30
Genre: Nature
ISBN: 0813725089

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"Stemming from research in the three upper Great Lakes basins (Superior, Michigan, and Huron), the volume is organized by geologic time, beginning with the reconstructed drainage for glacial Lake Minong southward across Michigan's Upper Peninsula and ending with the use of remote sensing and geospatial analysis in monitoring Lake Michigan coastal dunes"--

Wind Effects on Structures

Wind Effects on Structures
Author: Emil Simiu
Publisher: John Wiley & Sons
Total Pages: 533
Release: 2019-03-11
Genre: Technology & Engineering
ISBN: 1119375886

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Provides structural engineers with the knowledge and practical tools needed to perform structural designs for wind that incorporate major technological, conceptual, analytical and computational advances achieved in the last two decades. With clear explanations and documentation of the concepts, methods, algorithms, and software available for accounting for wind loads in structural design, it also describes the wind engineer's contributions in sufficient detail that they can be effectively scrutinized by the structural engineer in charge of the design. Wind Effects on Structures: Modern Structural Design for Wind, 4th Edition is organized in four sections. The first covers atmospheric flows, extreme wind speeds, and bluff body aerodynamics. The second examines the design of buildings, and includes chapters on aerodynamic loads; dynamic and effective wind-induced loads; wind effects with specified MRIs; low-rise buildings; tall buildings; and more. The third part is devoted to aeroelastic effects, and covers both fundamentals and applications. The last part considers other structures and special topics such as trussed frameworks; offshore structures; and tornado effects. Offering readers the knowledge and practical tools needed to develop structural designs for wind loadings, this book: Points out significant limitations in the design of buildings based on such techniques as the high-frequency force balance Discusses powerful algorithms, tools, and software needed for the effective design for wind, and provides numerous examples of application Discusses techniques applicable to structures other than buildings, including stacks and suspended-span bridges Features several appendices on Elements of Probability and Statistics; Peaks-over-Threshold Poisson-Process Procedure for Estimating Peaks; estimates of the WTC Towers’ Response to Wind and their shortcomings; and more Wind Effects on Structures: Modern Structural Design for Wind, 4th Edition is an excellent text for structural engineers, wind engineers, and structural engineering students and faculty.

Diatoms and Lake Acidity

Diatoms and Lake Acidity
Author: John P. Smol
Publisher: Springer
Total Pages: 308
Release: 1986-03-31
Genre: Science
ISBN: 9789061935360

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