A Higher-Order Ray Approximation Applied to Orographic Gravity Waves: Gaussian Beam Approximation

@inproceedings{Pulido2011AHR,
  title={A Higher-Order Ray Approximation Applied to Orographic Gravity Waves: Gaussian Beam Approximation},
  author={Manuel Pulido and Claudio Jos{\'e} Francisco Rodas},
  year={2011}
}
Abstract Ray techniques are a promising tool for developing orographic gravity wave drag schemes. However, the modeling of the propagation of orographic waves using standard ray theory in realistic background wind conditions usually encounters several regions, called caustics, where the first-order ray approximation breaks down. In this work the authors develop a higher-order approximation than standard ray theory, named the Gaussian beam approximation, for orographic gravity waves in a… CONTINUE READING