Snow and ice thickness, ice algal biomass varying mortality function, and onset of the bloom. Snow and ice thickness (cm) (a) and ice algal biomass (mg Chl a m–3) differing linear and quadratic dependencies on mortality (b). The black solid line in (b) is the standard run, the dashed red (blue) line is the simulated bloom with both linear and quadratic dependencies decreased (increased) by 25%. The solid colored lines are for blooms with linear and quadratic dependencies changed in opposite directions, e.g., increased for linear and decreased for quadratic. The onset of the bloom in the red box in (b) is expanded in (c). DOI: https://doi.org/10.1525/elementa.229.f11