The Hay River Basin is a cross-border watershed located in British Columbia, Alberta, and the Northwest Territories in Canada. This region is experiencing direct impacts of climate change on hydrological processes. In response, the Alberta–Northwest Territories bilateral agreement was initiated to support a shared approach to manage water resources and work toward establishing water quantity objectives at the border.

To this end, we developed a multi-model approach to simulate climate change scenarios. Preliminary results show that, even with similar streamflow representation during the historical period, the models exhibit different behaviour under future conditions. This project provides valuable information to support water management strategies and policy decisions by improving understanding of how climate-driven changes may affect water availability in the basin.