Historical Metamorphosis of the Arkansas River on the Kansas High Plains
HISTORICAL METAMORPHOSIS OF THE ARKANSAS RIVER ON THE KANSAS HIGH PLAINS BY KOLBE D. ANDRZEJEWSKI Submitted to the graduate degree program in Geography and the Graduate Faculty of the University of Kansas in partial fulfillment of the requirements for the degree of Master of Science. ___________________________________ Chairperson William C. Johnson, Ph.D. ___________________________________ Stephen L. Egbert, Ph.D. ___________________________________ Kyle E. Juracek, Ph.D. ___________________________________ Alan F. Halfen, Ph.D. Date Defended: July 20, 2015 The Thesis Committee for Kolbe D. Andrzejewski certifies that this is the approved version of the following thesis: HISTORICAL METAMORPHOSIS OF THE ARKANSAS RIVER ON THE KANSAS HIGH PLAINS Chairperson William C. Johnson, Ph.D. Date Approved: August 19, 2015 ii HISTORICAL METAMORPHOSIS OF THE ARKANSAS RIVER ON THE KANSAS HIGH PLAINS BY KOLBE D. ANDRZEJEWSKI ABSTRACT River metamorphosis is a well-documented global phenomenon, particularly for the historic period. The Arkansas River in western Kansas is an example of a river channel that has undergone a major historical metamorphosis: the pre-1900’s channel was wide, shallow and braided, but subsequently transformed into a narrow, sinuous meandering system. This study establishes the relationship between the hydrology and dynamics of channel morphology, determined the period in which the metamorphosis occurred, and quantified the channel change. In order to document channel change along a reach of the Arkansas River within the Kansas High Plains this study used ArcGIS to evaluate aerial photography for seven discrete years within the past 75 years, USGS stream gages to document the historical decrease in discharge, Public Land Survey records to characterize early settlement channel widths, and lesser sources such as historical ground-based images and bridge construction plans to further document historical changes in channel morphology.
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