The Canadian Optimized High-Resolution Representation of the National Terrestrial Carbon Cycle (COHERENT-C)

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The Canadian Optimized High-Resolution Representation of the National Terrestrial Carbon Cycle (COHERENT-C) project is a partnership between Canada's academic carbon science community and Environment and Climate Change Canada (ECCC). The main objective of this project is to rapidly advance Canada's skill at representing and predicting Canada's terrestrial carbon cycle as climate, disturbances, and atmospheric greenhouse gas concentrations evolve. The results of this project will include 1) annual summaries for policy makers on the past and future state of Canada's carbon sinks and sources, and 2) scientific publications and presentations detailing an improved understanding of the vulnerability of carbon cycle processes in Canadian forests, wetlands, and the North. By addressing these knowledge gaps, we will support Canada's ability to harness nature-based solutions to combat climate change and provide climate forecasts needed for climate change adaptation throughout the country. To achieve these results, COHERENT-C will mobilize a large group of academic and government collaborators to improve ECCC's open source community model, the Canadian Land Surface Scheme including Biogeochemical Cycles (CLASSIC). CLASSIC is the land component of ECCC's family of Earth System Models used by the climate science, impacts, and adaptation communities. The four areas of CLASSIC to be developed to better represent Canada's carbon budget are: 1) boreal forests, 2) peatlands, 3) Arctic ecosystems, and 4) disturbance impacts on these ecosystems. COHERENT-C will be the first attempt at a comprehensive process-based modelling of Canada's terrestrial carbon cycle and will be used to predict how the carbon sink and source status of our managed and unmanaged lands may change in the future. These efforts are aimed at supporting ECCC's implementation of the Pan-Canadian Framework on Clean Growth and Climate Change and inform strategies to meet Canada's international commitments on climate change mitigation and sustainable development.