An Investigation of the Interaction, Evolution and Maintenance of the Large-Scale Waves in the Stratosphere and Troposphere.
Abstract
Based on National Meteorological Center and Air Force gridded analysis data over the Northern Hemisphere and tropical regions, an analysis of the interaction, evolution, and maintenance of available potential and kinetic energy was carried out. This analysis indicated that the maintenance of the energetics in the winter, middle latitudes followed a definite cycle. Diabatic heating supplied energy to the mean stratospheric available potential energy, which then converted to mean stratospheric kinetic energy and was subsequently removed from the system by Reynolds and molecular stresses. Analysis of energy transfer at boundaries indicated that boundary terms act principally to decrease centers of high kinetic and available potential energy or to increase energy in areas of relative minimum kinetic or available potential energy. Of all boundary terms, the vertical geopotential flux was seen as the most important, transferring energy upward over most of the Northern Hemisphere for all wave numbers and converging energy in the region of the tropical tropopause for wave number 2. It suggests that stratospheric warnings may be an effect of energy transfer at boundaries.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1979
- Accession Number
- ADA107964
Entities
People
- James Larrien Hatch
Organizations
- Air Force Institute of Technology