Revisiting Historical Surface Water Conditions in the Peace-Athabasca Delta to Answer Why Perched Basins are Drying

Daniel L Peters1, Donald J Baird2, Spyros Beltaos3, Barrie R Bonsal4, Yonas B Dibike5, Wendy A Monk2 and Rajesh Shrestha6, (1)Environment and Climate Change Canada, University of Victoria, Victoria, BC, Canada, (2)Environment and Climate Change Canada, Canadian Rivers Institute, University of New Brunswick, Fredericton, NB, Canada, (3)Environment and Climate Change Canada, Burlington, ON, Canada, (4)Environment Canada Saskatoon, Saskatoon, SK, Canada, (5)Environment Canada, Victoria, BC, Canada, (6)Environment and Climate Change Canada, Watershed Hydrology and Ecology Research Division, Victoria, BC, Canada