The Common Hydrology Features (CHyF) open source software, demonstrated on the CHyF Pilot Demo, was developed by Refractions Research for Natural Resources Canada. CHyF is a hydrological features model derived from the OGC’s HY_Features (OGC® WaterML 2: Part 3 - Surface Hydrology Features (HY_Features) - Conceptual Model). CHyF extends HY_Features and provides an implementation.
The demo site is available at: https://chyf.ca/
The CHyF data tools application can be downloaded here: http://chyf.ca/chyf-apps/chyf-datatools-1.1.0-201902222123.zip