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Full-Text Articles in Physical Sciences and Mathematics
Changes In Beach Gravel Lithology Caused By Anthropogenic Activities Along The Southern Coast Of Lake Michigan, Usa, Zoran Kilibarda, Nolan Graves, Melissa Dorton, Richard Dorton
Changes In Beach Gravel Lithology Caused By Anthropogenic Activities Along The Southern Coast Of Lake Michigan, Usa, Zoran Kilibarda, Nolan Graves, Melissa Dorton, Richard Dorton
Zoran Kilibarda
The southern coast of Lake Michigan is the most urbanized and most densely populated area in the Great Lakes region. Development of steel mills, harbors, and municipalities in NW Indiana and in NE Illinois in the last century and a half altered the nearshore environment so much that native beach gravel (>8 mm) now exist only in the exhumed paleo-beach remnants from the Nipissing Phase (~4,500 years ago) of Lake Michigan. Native gravel, collected from paleo-beach remnants at Mount Baldy Dune and Beach House Blowout, contain predominantly beach shingle, very platy siltstones (71–78 %), with secondary crystalline pebbles (18 …
The Role Of Extratropical Cyclones In Shaping Dunes Along Southern And Southeastern Lake Michigan, Brian Yurk, Edward Hansen, Suzzanne Devries-Zimmerman, Zoran Kilibarda, Deanna Van Dijk, Brian Bodenbender, A. Krehel, T. Pennings
The Role Of Extratropical Cyclones In Shaping Dunes Along Southern And Southeastern Lake Michigan, Brian Yurk, Edward Hansen, Suzzanne Devries-Zimmerman, Zoran Kilibarda, Deanna Van Dijk, Brian Bodenbender, A. Krehel, T. Pennings
Zoran Kilibarda
This study investigates the impacts of extratropical cyclones on Lake Michigan dune complexes by integrating fi eld measurements and meteorological data from sites along the southeastern shore. Surface changes and wind velocities were monitored at Hoffmaster State Park, Saugatuck Harbor Natural Area, and Mount Baldy at Indiana Dunes National Lakeshore from October to April in 2010–2011 and 2011–2012. Over 70% of the events with wind speeds at least two standard deviations above the mean were associated with extratropical cyclones. The wind directions depended on the cyclone path, with westerly or southerly components most common. Local conditions moderated the effects of …