Relate Watershed Erosion Estimation to Bankfull Channel Dimension
Abstract
It is believed that a stream is of function properly to carry water and sediment by maintaining channel dimensions, pattern, and profile without degrading or aggrading them over time. The formation of channel dimensions is extremely complex. This study is to relate quantifiable and consistent channel dimensions at the bankfull stage to the corresponding watershed erosion estimation by the Revised Universal Soil Loss Equation (RUSLE). Twelve sites of which drainage areas range from 7 to 100 square miles in the Hocking River Basin of Ohio were selected for the bankfull geometry determinations including width, depth, cross-section area, bed slope, and drainage area. The twelve sub-watersheds were chosen to obtain a good overall representation of the Hocking River Basin. It is of interest to determine how these bankfull channel dimensions are related to the soil erosion of corresponding sub-watersheds. Soil erosion is a natural process that has occurred in a watershed over time. The RUSLE used to quantify watershed erosion is to estimate the erosions of the twelve selected sub-watersheds where the bankfull geometry measurements are conducted. These quantified erosions of sub-watersheds are used to investigate possible correlations with bankfull channel dimensions including discharge, channel width, channel depth, cross-sectional area, and pebble distribution.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2016
- Bibcode:
- 2016AGUFMEP41C0928Z
- Keywords:
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- 3322 Land/atmosphere interactions;
- ATMOSPHERIC PROCESSESDE: 0486 Soils/pedology;
- BIOGEOSCIENCESDE: 1640 Remote sensing;
- GLOBAL CHANGEDE: 1866 Soil moisture;
- HYDROLOGY