Idealized Frontogenesis

1
Idealized Frontogenesis

• - Nonlinear evolution of mid-latitude
  disturbances in the FISL_Hyd3d model
• Mid-latitude b-plane channel. Zonally uniform
  geostrophically balanced basic state and
  small-amplitude random perturbations - initial
  condition. Idealized Newtonian heating and
  low-level friction.
• Model top at 1 hPa, 41 layers horizontal grid
  size 100km (nx40, ny100).
• FISL time step 20 min, no uncentering.

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Initial condition
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Surface pressure (solid) and potential
temperature (dashed) at 988 hPa
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Geopotential height (solid) and potential
temperature (dashed) 500hPa
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Vertical slice at i26 Days 6, 8, 10, 12
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Vertical slice at i26 Days 14, 16, 18, 20