Comparison of sea surface heights from different data sets

Comparison of low-pass filtered (i.e., tides removed) sea surface height from operational HYCOM (light blue), archived 5-km COAWST (in green), and the 1-km COAWST hindcast developed for this project (in red) to observational data (in black). Both HYCOM and the new COAWST system compare well to observations, noting that HYCOM does not include tides and therefore cannot directly provide boundary conditions to the Chandeleurs model.