Re-meandering attenuates frequent high-flows and diversifies physical habitat in a gravel-bed river - Research Data
This repository contains data for an investigation that used a HEC-RAS hydraulic model, Geomorphic Change Detection software and Geomorphic Unit Tool to assess the geomorphic changes of a re-meandered section of the Eddleston Water (United Kingdom) and their impacts on flood attenuation and physical habitat diversity. The hydraulic model used topographic data acquired prior to 2013, in 2018 and 2020. This dataset includes: (A) HEC-RAS model inputs; (B) HEC-RAS model outputs; (C) Geomorphic Change Detection project; and (D) Geomorphic Units outputs. *All geospatial data are in the GCS_OSGB_1936 coordinate system.
Contact: isabelle.costaz@graie.org, icostazpuyou001@dundee.ac.uk, Richard.Williams@glasgow.ac.uk.
This directory contains:
A. HEC-RAS Inputs:
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A-HEC-RAS-Inputs.zip
There are 3 scenarios: (1) a straight channel (prior to 2013), (2) the same section of the channel re-meandered with its channel geomorphology recorded in April 2018, (3) the same re-meandered channel with its channel geomorphology recorded in May 2020.
There are 5 return periods simulated for each of the 3 channel geomorphologies: Q2years, Q5y, Q10y, Q20y, and Q50y.
This dataset was generated using HEC-RAS version 6.0.0 software https://www.hec.usace.army.mil/software/hec-ras/download.aspx
Data to run HEC-RAS 2D simulation in 6 sub-directories:
1. Projection file:
OSGB_1936_British_National_Grid.prj
2. Shapefiles:
These shapefiles were used as input to the geometry as perimeters and refinement regions.
(1b) straight channel with lowered bathymetry:Valley_confinement2.shp, Model_extent2.shp, Embankments_HEC_Pre-NFM, Pre-NFM_Centerline.shp, Tributaries_HEC, Breaklines_Pre-NFM.shp
(1c) straight channel: Valley_confinement2.shp, Model_extent2.shp, Embankments_HEC_Pre-NFM, Pre-NFM_Centerline.shp, Tributaries_HEC, Breaklines_Pre-NFM.shp
(2) April 2018: Valley_confinement2.shp, Model_extent2.shp, Embankments_HEC.shp, LF_Centerline_Apr18.shp, Tributaries_HEC_v2.shp, Breaklins_Apr18.shp
(3) May 2020: Valley_confinement2.shp, Model_extent2.shp, Embankments_HEC.shp, LF_Centerline_May20.shp, Tributaries_HEC_v2.shp, Breaklines.shp
File Extensions: cpg, dbf, prj, sbn, sbx, shp, shx
3. Digital Elevation Models
3 DEMs:
(1b) straight channel with lowered bathymetry: Terrain_HEC_Pre-NFM_sim1b
(1c) straight channel: Terrain_HEC_Pre-NFM_0.5m
(2) April 2018: Try_Apr18_v4_2
(3) May 2020: Terrain_May20_HEC_v3_7
File extensions: (.tif, .tfw, .tif.aux.xml, .tif.ovr, .vrt)
4. Geometry
This includes the 2D area and refinement regions plus the boundaries (inlet and outlet).
(1b) straight channel with lowered bathymetry: Eddl_Pre-NFM_v2_f.g01
(1c) straight channel: Eddl_Pre-NFM_v3.g01
(2) April 2018: Eddl_Apr2018_v2_f.g02
(3) May 2020: Eddleston_May2020_v2_f.g01
5. Unsteady flow data
The flow hydrographs for each of the return period for the upstream boundary condition are:
(1b) straight channel with lowered bathymetry: Eddl_Pre-NFM_v2_f.u08, .u09, .u10, .u11, .u12
(1c) straight channel: Eddl_Pre-NFM_v3.u08, .u09, .u10, .u11, .u12
(2) April 2018: Eddl_Apr2018_v2_f.u08, .u09, .u10, .u11, .u12
(3) May 2020: Eddleston_May2020_v2_f.u08, .u09, .u10, .u11, .u12
6. Plans
The simulations were run for the 3 scenarios and the 5 return periods.
(1b) straight channel with lowered bathymetry: Eddl_Pre-NFM_v2_f.p08 (Q2y), Eddl_Pre-NFM_v2_f.p09 (Q5y), Eddl_Pre-NFM_v2_f.p10 (Q10y), Eddl_Pre-NFM_v2_f.p11 (Q20y),
Eddl_Pre-NFM_v2_f.p12 (Q50y)
(1c) straight channel: Eddl_Pre-NFM_v3.p08 (Q2y), Eddl_Pre-NFM_v3.p09 (Q5y), Eddl_Pre-NFM_v3.p10 (Q10y), Eddl_Pre-NFM_v3.p11 (Q20y), Eddl_Pre-NFM_v3.p12 (Q50y)
(2) April 2018: Eddl_Apr2018_v2_f.p15 (Q2y), Eddl_Apr2018_v2_f.p16 (Q5y), Eddl_Apr2018_v2_f.p17 (Q10y), Eddl_Apr2018_v2_f.p18 (Q20y), Eddl_Apr2018_v2_f.p19 (Q50y)
(3) May 2020: Eddleston_May2020_v2_f.p08 (Q2y), Eddleston_May2020_v2_f.p09 (Q5y), Eddleston_May2020_v2_f.p10 (Q10y), Eddleston_May2020_v2_f.p11 (Q20y), Eddleston_May2020_v2_f.p12 (Q50y)
B. HEC-RAS Outputs:
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B-HEC-RAS-Outputs.zip
Max Depths
(1b) straight channel with lowered bathymetry: 1b-Pre-NFM_Sim1b_Q2_depth_max.tif (Q2y), 1b-Pre-NFM_Sim2b_Q5_depth_max.tif (Q5y), 1b-Pre-NFM_Sim3b_Q10_depth_max.tif (Q10y), 1b-Pre-NFM_Sim4b_Q20_depth_max.tif (Q20y), 1b-Pre-NFM_Sim5b_Q50_depth_max.tif (Q50y)
(1c) straight channel: 1c-Pre-NFM_Sim1b_Q2_depth_max.tif (Q2y), 1c-Pre-NFM_Sim2b_Q5_depth_max.tif (Q5y), 1c-Pre-NFM_Sim3b_Q10_depth_max.tif (Q10y), 1c-Pre-NFM_Sim4b_Q20_depth_max.tif (Q20y), 1c-Pre-NFM_Sim5b_Q50_depth_max.tif (Q50y)
(2) April 2018: Apr2018_Sim1b_Q2_depth_max.tif (Q2y), Apr2018_Sim2b_Q5_depth_max.tif (Q5y), Apr2018_Sim3b_Q10_depth_max.tif (Q10y), Apr2018_Sim4b_Q20_depth_max.tif (Q20y), Apr2018_Sim5b_Q50_depth_max.tif (Q50y)
(3) May 2020: May2020_Sim1b_Q2_depth_max.tif (Q2y), May2020_Sim2b_Q5_depth_max.tif (Q5y), May2020_Sim3b_Q10_depth_max.tif (Q10y), May2020_Sim4b_Q20_depth_max.tif (Q20y), May2020_Sim5b_Q50_depth_max.tif (Q50y)
File extensions:(.tif, .vrt)
C. Geomorphic Change Detection (GCD):
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GCD_Eddleston.zip: This dataset was generated using GCD version 7.5 software http://gcd.riverscapes.xyz/
DEM of difference between 20120 and 2018
D. Geomorphic Units outputs (GUT):
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GUT_Eddleston.zip:
Results from application of Geomorphic Unit Tool (GUT). This dataset was generated using GUT software http://gcd.riverscapes.xyz/
May 2020: there is one shapefile by sub-reaches, in order from upstream to downstream: LW, MK, CR, Brdg, NK
E. Hydrological data:
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Flow values at Nether Kidston gauging station: Eddleston_Flow_time_series.xlsx