Optical and biogeochemical models

The EMS biogeochemical model has been applied throughout Australian estuarine and shelf waters, and in Chilean and Israeli waters. The highest profile application is the eReefs marine biogeochemical model. The model is shown below, with the key features being:

  • Resolves carbon, nitrogen and phosphorus cycling.
  • 4 phytoplankton, 2 zooplankton plankton food web.
  • Spectrally-resolved optical model including calculation of remote-sensing reflectance.
  • Contains a 3-stage remineralisation / detrital pathway.
  • Represents seagrass, macroalgae, benthic microalgae and corals.


The biogeochemistry and optical models are described in an 130+ page pdf that can be downloaded from the documentation page.

Schematic of CSIRO Environmental Modelling Suite, illustrating the model forcing (circulation, waves and meteorology), sediment and carbon chemistry models, and the biogeochemical quantities and processes in the water column, epipelagic and sediment zones. Optically active state variables are denoted with orange text.