Canadian Estimator of Ratings Curves using HAND and Discharge (CERC-HAND-D). A custom ArcGIS Pro tool used to create a synthetic rating curve using publicly available data from the Government of Canada.
This tool was designed to work with input data soured from the Open Government database provided by the Government of Canada. The suggested data to use includes:
2015 Land Cover of Canada: https://open.canada.ca/data/en/dataset/4e615eae-b90c-420b-adee-2ca35896caf6
High Resolution Digital Elevation Model (HRDEM) - CanElevation Series: https://open.canada.ca/data/en/dataset/957782bf-847c-4644-a757-e383c0057995
National Hydrographic Network: https://www.nrcan.gc.ca/science-and-data/science-and-research/earth-sciences/geography/topographic-information/geobase-surface-water-program-geeau/national-hydrographic-network/21361
CERC-HAND-D requires a Height Above Nearest Drainage (HAND) raster file; a HAND raster can be created using the datasets listed above. Alternative data sources may reduce the quality of the results or prevent the tool from functioning. The National HydroGraphic Network does not provide attribute data on Stahler order, so an alternative source for river network data may be preferred.Ideally, the area of interest should have around 1.5-5 km length of river (high order stahler) and a river slope greater than 0.001 m/m. Keeping within these guidelines will produce the most accurate results possible.
Additionally, use Min_Max_Scen.py script file with CERC-HAND-D for best performance; by default, this is already the script used by the tool. The other two script files (Weighted_n.py and Fixed_n.py) are experimental and may not produce accurate results.
If you need to create a HAND model or a Watershed polygon of your study area, you can follow this guide by Dr. David Tarboton: https://www.caee.utexas.edu/prof/maidment/giswr2018/Ex5/Ex52018.pdf
More info on how to use the tool is available from this ArcGIS StoryMap: https://storymaps.arcgis.com/stories/468e09a0cbe24aa68193be42404e1f60
If you have any issues, please contact me at scrivenblair@gmail.com