Modeling key processes affecting Al speciation and transport in estuaries

  • Simonsen, Magne
  • Teien, Hans-Christian
  • Lind, Ole Christian
  • Sætra, Øyvind
  • Albretsen, Jon
  • Salbu, Brit
Publication date
January 2019
Publisher
Elsevier BV
Language
English

Abstract

Assessments of the impacts of aluminium (Al) to aquatic organisms in estuarine waters have suffered from the lack of available models that can accurately predict the presence of toxic physico-chemical forms (species) of Al at adequate spatial and temporal resolution. In the present work, transport and distribution of river-discharged Al species through changing environmental conditions in the Sandnesfjorden estuary, South-Eastern Norway, was predicted using a numerical model system at relatively high spatial (32 m × 32 m in horizontal) and temporal (1 h) resolution. New model code was implemented, including dynamic, salinity-dependent speciation and transformation processes, based on in situ measurements from several Norwegian estuaries as ...

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