Research Tools

We conduct our research using:

• A global 4D-Var system using the NCEP global spectral model
  
  
• A regional 4D-Var system using the MM5 mesoscale finite-difference model
  
  
• A regional 4D-Var system using COAMPS mesoscale model (under development)
  
  
• Various observation operators and their tangent linear and adjoint operators