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UID:pretalx-juliacon-2026-LFPLJT@pretalx.com
DTSTART;TZID=CET:20260812T144000
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DESCRIPTION:The snow cover plays a central role in many Earth system proces
 ses\, for example influencing climate feed-back\, the hydrological cycle\,
  as well as glacier and ice sheet mass balance. Widely used snow cover mod
 els such as SNOWPACK (C++) and Crocus (Fortran) show strong performance in
  operational forecasting and scientific modeling.  However\, their still t
 ightly entangled code bases make it difficult for the community to modify 
 model components efficiently. This is due to technical dept as well as lim
 itations of the programming languages itself.  Recent advances in snow phy
 sics parameterizations have highlighted structural limitations in those mo
 dels\, underscoring the need for a more flexible modelling framework. \n\n
 To address these challenges\, we present Helmut\, a modular snow cover mod
 el implemented in Julia. Helmut combines a state‑of‑the‑art snow pro
 cess equation solver within a design that emphasizes flexibility\, and qui
 ck experimentation. Julia’s multiple dispatch allows Helmut users to ext
 end or replace individual components—such as parameterizations\, boundar
 y‑conditions\, or physical process formulations - efficiently. This enab
 les domain scientists to contribute easily and test new advances with mini
 mal friction. \n\nHelmut successfully reproduces simulations from existing
  snow models while offering a much more accessible framework for modifying
  model physics\, testing new parameterizations\, and experimenting with al
 ternative numerical formulations. We further demonstrate how the structure
  enables exploration of the impacts of different parameterizations and phy
 sical configurations\, making such investigations considerably easier.
DTSTAMP:20260502T104013Z
LOCATION:Room 3
SUMMARY:Helmut: A Modular and Extensible Snow Cover Model - Patrick\, de Fl
 eurian Basile
URL:https://pretalx.com/juliacon-2026/talk/LFPLJT/
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