Anticyclogenesis
{{Short description|Development of anticyclonic circulation}}Anticyclogenesis is the development or strengthening of an anticyclonic circulation in the atmosphere. It is the opposite of anticyclolysis (the dissolution or weakening of an anticyclone) and has a cyclonic equivalent known as cyclogenesis.{{cite web| title = American Meteorological Society Glossary - Anticyclogenesis| publisher = Allen Press Inc.| date = June 2000| url = http://amsglossary.allenpress.com/glossary/search?id=anticyclogenesis1| accessdate = 2006-11-03 | archiveurl= https://web.archive.org/web/20061026095244/http://amsglossary.allenpress.com/glossary/search?id=anticyclogenesis1| archivedate= 26 October 2006 | url-status= live}} Anticyclones are alternatively referred to as high pressure systems.
Process
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.Glossary of Meteorology (2009). [http://amsglossary.allenpress.com/glossary/search?id=level-of-nondivergence1 Level of nondivergence.] American Meteorological Society. Retrieved on 2009-02-17.Konstantin Matchev (2009). [http://www.phys.ufl.edu/~matchev/MET1010/notes/Chapter12b.ppt Middle-Latitude Cyclones - II.] {{webarchive|url=https://web.archive.org/web/20090225025157/http://www.phys.ufl.edu/~matchev/MET1010/notes/Chapter12b.ppt |date=2009-02-25 }} University of Florida. Retrieved on 2009-02-16. On weather maps, high-pressure centers are associated with the letter HKeith C. Heidorn (2005). [http://www.islandnet.com/~see/weather/elements/high.htm Weather's Highs and Lows: Part 1 The High.] The Weather Doctor. Retrieved on 2009-02-16. placed within the isobar with the highest pressure value. On constant pressure upper level charts, it is located within the highest height line contour.Glossary of Meteorology (2009). [http://amsglossary.allenpress.com/glossary/search?id=high1 High.] American Meteorological Society. Retrieved on 2009-02-16.
See also
- {{annotated link|Anticyclonic storm}}
- {{annotated link|Cyclogenesis}}
- {{annotated link|High-pressure area}}