Adding a module to Glimmer I

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Construct and add a new module to Glimmer

  • For this exercise, we will create and add a 1st-order, upwind advection scheme to the model
  • The new module will be used with velocities from the HO model to evolve a simple ice shelf domain (image below).
  • Evolution using the 1st-order advection scheme will be compared with that from a higher-order advection scheme.
  • For step-by-step notes on adding this module, go to adding dH/dt module.




Initial thickness, across-flow, and along-flow velocity fields for confined ice shelf (500 m thick, uniform T=253 K). Boundary conditions are 0-flux at top, left, right, and shelf BCs at bottom.

Confined-shelf.ini.jpg


Thickness and velocity fields after 100 yrs of evolution with no accumulation. Evolution was calculated using the 1st-order advection scheme.

Confined-shelf.100a no acab.jpg


Thickness and velocity fields after 100 yrs of evolution with uniform accumulation of 0.25 m/a. Evolution was calculated using the 1st-order advection scheme.

File:Confined-shelf.100a p25 acab.jpg