Anticyclogenesis

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Anticyclogenesis is the development or strengthening of anticyclonic circulation in the atmosphere. It is the opposite of anticyclolysis, and has a cyclonic equivalent—cyclogenesis.[1] Anticyclones are alternatively referred to as high pressure systems. High pressure areas form due to downward motion through the troposphere, the atmospheric layer where weather occurs. Preferred areas within a synoptic flow pattern in higher levels of the troposphere are beneath the western side of troughs. On weather maps, these areas show converging winds (isotachs), also known as confluence, or converging height lines near or above the level of non-divergence, which is near the 500 hPa pressure surface about midway up through the troposphere.[2][3] On weather maps, high pressure centers are associated with the letter H.[4] On constant pressure upper level charts, it is located within the highest height line contour.[5]

Process[edit]

High-pressure systems form due to downward motion through the troposphere, the atmospheric layer where weather occurs. Preferred areas within a synoptic flow pattern in higher levels of the troposphere are beneath the western side of troughs. On weather maps, these areas show converging winds (isotachs), also known as confluence, or converging height lines near or above the level of non-divergence, which is near the 500 hPa pressure surface about midway up through the troposphere.[2][3] High-pressure systems are alternatively referred to as anticyclones. On weather maps, high-pressure centers are associated with the letter H[4] placed within the isobar with the highest pressure value. On constant pressure upper level charts, it is located within the highest height line contour.[5]

See also[edit]

References[edit]

  1. ^ "American Meteorological Society Glossary - Anticyclogenesis". Allen Press Inc. June 2000. Archived from the original on 26 October 2006. Retrieved 2006-11-03.  External link in |publisher= (help)
  2. ^ a b Glossary of Meteorology (2009). Level of nondivergence. American Meteorological Society. Retrieved on 2009-02-17.
  3. ^ a b Konstantin Matchev (2009). Middle-Latitude Cyclones - II. University of Florida. Retrieved on 2009-02-16.
  4. ^ a b Keith C. Heidorn (2005). Weather's Highs and Lows: Part 1 The High. The Weather Doctor. Retrieved on 2009-02-16.
  5. ^ a b Glossary of Meteorology (2009). High. American Meteorological Society. Retrieved on 2009-02-16.