Assessment of the geomorphic effects of large floods using streamgage data: the 1951 floods in eastern Kansas, USA

Physical Geography
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Abstract

Data from 23 U.S. Geological Survey (USGS) streamgages were analyzed to assess the geomorphic effects (short-term change and subsequent recovery) of the record 1951 floods on streams in eastern Kansas. Flood-related, channel-bed elevation change was indicated for 17 gage sites, with substantial deposition at five sites and substantial erosion at two sites. An assessment of post-flood bed elevation recovery was possible for several sites. While recovery to pre-flood channel-bed elevation occurred over a period of months to years at some sites, at other sites recovery was incomplete or absent. Floodrelated channel widening with partial recovery was indicated for one site and possible channel widening was indicated for two sites. It was demonstrated that an analysis of streamgage data is a potentially useful technique for assessing the geomorphic effects of a large flood at a site, provided that the gage has a long period of record and is located on an alluvial channel. In the absence of other lines of evidence, streamgage data can provide an estimate of the direction and magnitude (net) of geomorphic change that otherwise might not be available or attainable.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Assessment of the geomorphic effects of large floods using streamgage data: the 1951 floods in eastern Kansas, USA
Series title Physical Geography
Volume 32
Issue 1
Year Published 2011
Language English
Publisher Bellwether Publishing, Ltd.
Publisher location Columbia, MD
Contributing office(s) Kansas Water Science Center
Description 26 p.
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Physical Geography
First page 52
Last page 77
Country United States
State Kansas
Projection Albers Equal-Area Conic projection
Scale 2000000