The Canadian Hydrological Model (CHM) uses a novel, modular, mesh-based approach for developing and testing process representations in hydrological modelling. It can move between spatial scales, temporal scales, and spatial extents. Its key features include the abilities to i) capture spatial heterogeneity in surface discretizations in an efficient manner, ii) include multiple process representations; iii) change, remove, and decouple hydrological process algorithms, iv) work both with spatially localized (point) and non-localized (distributed) models, v) span multiple spatial extents and scales, and vi) utilize a variety of forcing fields for boundary and initial conditions.
The paper describing CHM can be found here.
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