The influence of floodplain restoration on sediment dynamics on an urban river
Publication Date
May 20, 2016
Creators
Description
Urbanisation affects both the volume and timing of sediment delivery in the catchment. This study presents influence of floodplain restoration on the sediment dynamics in the highly urbanised catchment, Johnson Creek, Portland, Oregon. The study incorporates a two-dimensional hydro-morphodynamic model for predicting flow and suspended sediment dynamics in the downstream of Johnson Creek, the East Lents reach, where the bank of river has been reconfigured to reconnect to a restored floodplain. The simulation scenario include event-based (10, 50, 100, and 500 year floods) deposition modelling of flood events and long-term modelling using the 64 historical events between 1941 and 2014.
Parent projects:
Blue-Green Cities Research Project
Portland-Vancouver ULTRA (Urban Long-term Research Area) project
Clean Water for All
Coverage (Temporal):
Flow data collected daily and at 15 minutes intervals; sediment data collected periodically between May – June 2014
Coverage (Spatial):
Johnson Creek, Portland, Oregon USA
Coverage (Coordinates):
45°26′51″N 122°17′18″W to 45°26′39″N 122°38′36″W
Collection dates:
Flow data Janurary 1941-December 2014; Sediment data May–June 2014
External URI
Associate publ. DOI
Related resources
Subjects
Subjects (JACS)
Subjects (LC)
Divisions
Faculties, Schools and Departments::University of Nottingham, UK Campus::Faculty of Social Sciences::School of Geography
Data type
River flow data sets (USGS 14211500 Johnson Creek at Sycamore, Oregon, Excel), LiDAR data set (East Lents floodplain, txt document), Sediment Particle Size Distribution (Johnson Creek, Excel)
Grant Number
EP/K013661/1
Data collection method
River flow data: obtained from the USGS, Portland, Oregon. LiDAR datasets: obtained from the Bureau of Environmental Services, Portland, Oregon. Sediment dataset: physical sediment sample collection from stomwater outfalls were processed for particle size distribution analysis
Resource languages
English
Publisher
University of Leeds
Date Issued
May 5, 2016
File(s)![Thumbnail Image]()
![Thumbnail Image]()
Name
LiDAR bed terrain (1.5m by 1.5m).txt
Description
The topography data sets of the East Lents floodplain
Size
1.97 MB
Format
Text
Checksum (MD5)
3171bd616a77950627b0d939794e541d
Name
Sediment Particle Size Distribution.xlsx
Description
The sediment particle size distribution dataset
Size
18.62 KB
Format
Microsoft Excel XML
Checksum (MD5)
62e5e2c563bfdc14f7f35da072910225