“…Applications of depth-integrated two dimensional currents (e.g., Arndt et al, 2007;Bars et al, 2016) or fully three dimensional hydrodynamics (Yang and Khangaonkar, 2009;Vallaeys et al, 2021) have been studied. The transport of sediments, nutrients, trace metals and contaminants in estuaries has previously, among others, been described by Hartnett and Berry (2012); Elskens et al (2014); Zhou et al (2017), but to our knowledge, no one has simulated estuarine metal transport including speciation using three dimensional hydrodynamic fields at horizontal resolution higher than 32 m as applied by (Simonsen et al, 2019b).…”