The Effect of a CISK (Conditional Instability of the Second Kind) Parameterization Upon a Tropical Wave Growth.
Abstract
The linear boundary layer solution (Chang, 1973b), which includes the temporal acceleration, is used for a CISK (Conditional Instability of the Second Kind) parameterization to study tropical lower tropospheric waves. A one-level equation is derived for the top of the boundary layer and is solved numerically for its eigenvalues. Calculations are made for varying boundary-layer depths and vertical heating gradients. Growth rates, periods and eigenfunctions for the lowest meridional modes of synoptic-scale disturbances are analyzed. Results indicate that CISK heating does not prefer any finite wavelength. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1973
- Accession Number
- AD0769687
Entities
People
- Thomas Michael Piwowar
Organizations
- Naval Postgraduate School