Abstract
A 200 mb data set obtained during the GATE experiment of the 1974 summer for the period 15 June-23 September and covering the global tropics 25°S to 45°N has been analyzed to determine the presence of certain wave modes in the tropical troposphere.
The wavenumber-frequency method of analysis was used and the flow separated into eastward and westward moving waves. Results show what could be identified as Kelvin, Rossby and mixed Rossby- gravity waves. The period of the Kelvin wave was longer than that normally reported for similar waves in the stratosphere.
