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There exists a plethora of pollutants of global concern for whom the ocean is a key part in their environmental cycle. Namely, mercury (Hg) and several persistent organic pollutants (POPs) which are subject to international treaties (e.g. Minamata Convention, Stockholm Convention) are actively exchanged between atmosphere and ocean and subsequently accumulated in the marine food web. Thus, modeling their environmental fate requires a numerical representation of atmospheric and marine physics, chemistry, and biology. Here, we present our ongoing development of a global multi-compartment CTM coupling atmosphere, ocean including the marine ecosystem, and on land. ICON (the Icosahedral Non-hydrostatic Weather and Climate Model) is a next-gen hydrodynamic model. We coupled ICON atmosphere and ocean and incorporated the biogeochemical ecosystem NPZD (Nutrients, Phytoplankton, Zooplankton, Detritus) model ECOSMO. Finally, we use the hydrological model HydroPy to calculate riverine transport of pollutants deposited over land.

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Multi-compartment Modeling from Emission to Exposure

  • 会议论文

  • 发表日期：

    2025年

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  • Johannes Bieser,
  • Martin Otto Paul Ramacher,
  • Pascal T. Simon,
  • Hiram A. Meza Landero

摘要

There exists a plethora of pollutants of global concern for whom the ocean is a key part in their environmental cycle. Namely, mercury (Hg) and several persistent organic pollutants (POPs) which are subject to international treaties (e.g. Minamata Convention, Stockholm Convention) are actively exchanged between atmosphere and ocean and subsequently accumulated in the marine food web. Thus, modeling their environmental fate requires a numerical representation of atmospheric and marine physics, chemistry, and biology. Here, we present our ongoing development of a global multi-compartment CTM coupling atmosphere, ocean including the marine ecosystem, and on land. ICON (the Icosahedral Non-hydrostatic Weather and Climate Model) is a next-gen hydrodynamic model. We coupled ICON atmosphere and ocean and incorporated the biogeochemical ecosystem NPZD (Nutrients, Phytoplankton, Zooplankton, Detritus) model ECOSMO. Finally, we use the hydrological model HydroPy to calculate riverine transport of pollutants deposited over land.