NWP Essentials: Structure and Dynamics

NWP Essentials: Structure and Dynamics

After completing this lesson, you will be able to:

  • List at least 2 types of weather features which a hydrostatic model of sufficient resolution is not capable of properly predicting because the phenomena are nonhydrostatic in character
  • Describe the difference between how a grid point model and a spectral model represent data
  • State the primary source of error present in a limited-domain model but not present in a global model, and describe the time evolution of where in the limited-domain model the error appears
  • List 2 advantages and 2 limitations of models which use a sigma vertical coordinate or a hybrid which includes sigma coordinates at the bottom of the mode
  • State the minimum size feature a gridpoint model can predict well (how many grid boxes wide)
  • State at least two impacts of increasing model horizontal resolution on model topography
  • State at least two impacts of increasing model horizontal resolution on the resolution of atmospheric features
  • State at least 2 types of forecast errors other than temperature errors which occur in complex terrain when the terrain is not adequately resolved
  • Describe how the model prediction of boundary layer evolution can be affected by vertical resolution in an area of complex terrain