Monopole blocking governed by a modified KdV type equation

A type of coupled variable coefficient modified Korteweg-de Vries system is derived from a two-layered fluid system. It is known that the formation, maintenance, and collapse of an atmospheric blocking are always related with large-scale weather or short term climate anomalies. One special analytical solution of the obtained system successfully features the evolution cycle of an atmospheric monopole type blocking event. In particular, our theoretical results capture a real monopole type blocking case that happened during 19 February 2008 to 26 February 2008 can be well described by our analytical solution.