Horizontal structure of 500 mb height fluctuations with long, intermediate and short time scales.

Abstract

Maps of standard deviations and one-point correlation maps based on twice-daily data subjected to a variety of temporal filters are presented, in order to document the horizontal structure of 500 mb height fluctuations with different time scales. The filters have been chosen to isolate fluctuations with long time scales (periods much longer than 30 days), intermediate time scales (10-30 day periods) and short time scales (2.5-6 day periods).-from Authors