Search Results

You are looking at 1 - 1 of 1 items for :

  • Author or Editor: David A. Barber x
  • Refine by Access: Content accessible to me x
Clear All Modify Search
David A. Barber, Jerry M. Davis, and Allen J. Riordan


A substantial decline in North American cyclone and anticyclone activity has been documented by several recent studies based on counts of disturbance tracks. An independent method of assessing long-term trends in synoptic-scale activity based on sequential spectral analysis of station pressure is suggested. The efficacy of this approach is supported by previous studies relating the spatial distribution of variance of band-pass filtered pressures to preferred cyclone tracks. However, examples of a preliminary application of the spectral method to three widely separated stations using approximately 30 years of winter data fail to reveal any significant long-term trends in the variance of pressure for synoptic-scale time periods.

Full access