Some aspects of the basic characteristics of the Siberian anticyclone

✍ Scribed by H. S. Sahsamanoglou; T. J. Makrogiannis; P. P. Kallimopoulos

• Book ID: 102913761
• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 732 KB
• Volume: 11
• Category: Article
• ISSN: 0899-8418
• DOI: 10.1002/joc.3370110803

✦ Synopsis

Abstract

The presence of the Siberian Anticyclone is continuous from October until March in an area defined by longitude 90°‐110°E and latitude 40°‐55°N. From the point of view of central pressure, this anticyclone is much more intense than the permanent anticyclones in the Atlantic and Pacific Oceans. During the last 116 years there have been periods during which the anticyclone appeared stronger and periods when it appeared weaker. Since 1970 a continuous decrease in central pressure of the anticyclone is observed, and is related to a continuous temperature rise of the 1000–500 hPa layer for the same time interval. Their correlation is found to be negative. After 1950, maximum values of central pressure are observed corresponding to maximum values of solar activity. In some of the time series of the anticyclone central pressure, periodicities of 58, 4.5, 3.5, and 3 years are observed, as well as the Quasi‐biennial Oscillation.