Abstract:
This study concerns with an important middle latitude weather phenomena (Rossby Waves). In west to east slow moving waves amplitude being 30° and wavelength being 90° almost. Only three to five troughs with their intervening ridges can coexist over the whole of the northern hemisphere. The rate of displacement of troughs and ridges of Rossby waves at the level of 500 hpa have been studied and it is transpired that the movement of trough over pacific ocean in winter is somewhat uniform where as over landmass area it is not uniform. The average speed of movement at 45°N over Pacific Ocean is 5.05° i.e. 252.5 km per day whereas over landmass area it is 5.74° i.e. 287 km per day.
Page(s):
101-103
DOI:
DOI not available
Published:
Journal: Pakistan Journal of Meterology, Volume: 6, Issue: 11, Year: 2009