Contaminant models

The Crossman lab has collaborated in the development of multiple versions of the INCA (INtegrated CAtchment) model, which can simulate phosphorus, nitrogen, dissolved oxygen, phytoplankton and most recently microplastics. This popular suite of models has been applied to over 100 catchments internationally, and is used in scientific research, government contracts and management.

The model is semi-distributed, and simulates movement of contaminants through the terrestrial, riverine and sedimentary landscape at a land-use and subcatchment scale. Dr Crossman is a member of the team working on INCA’s continual development, identifying improvements in parameters, theory and equations, and working with model developers to implement upgrades.

Recent advances in INCA include the additions of dissolved oxygen, biological oxygen demand and algal biomass simulation enabling the model to examine interactions between hdyrochemistry and ecological processes; and the inclusion of microplastics.

Dr Crossman’s lab and INCA have been directly contracted as a management tool by non-governmental regional conservation authorities in Ontario, with several iterations available online as a user-friendly graphical user interface

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