' e aster . ▁The ▁ant icy cl onic ▁equivalent , ▁the ▁process ▁of ▁formation ▁of ▁high ▁pressure ▁areas , ▁is ▁ant icy c log en esis . ▁The ▁opposite ▁of ▁cy c log en esis ▁is ▁cycl ol ysis . ▁ ▁Meteor ological ▁scales ▁ ▁There ▁are ▁four ▁main ▁scales , ▁or ▁sizes ▁of ▁systems , ▁de alt ▁with ▁in ▁meteor ology : ▁the ▁macro scale , ▁the ▁syn opt ic ▁scale , ▁the ▁mes osc ale , ▁and ▁the ▁micro scale . ▁ ▁The ▁macro scale ▁de als ▁with ▁systems ▁with ▁global ▁size , ▁such ▁as ▁the ▁Mad den – Jul ian ▁oscill ation . ▁Syn opt ic ▁scale ▁systems ▁cover ▁a ▁portion ▁of ▁a ▁continent , ▁such ▁as ▁extr at rop ical ▁cycl ones , ▁with ▁dimensions ▁of ▁ ▁across . ▁ ▁The ▁mes osc ale ▁is ▁the ▁next ▁smaller ▁scale , ▁and ▁often ▁is ▁divided ▁into ▁two ▁ranges : ▁mes o - alpha ▁phen omena ▁range ▁from ▁ ▁across ▁( the ▁real m ▁of ▁the ▁tropical ▁cy clone ), ▁while ▁mes o - beta ▁phen omena ▁range ▁from ▁ ▁across ▁( the ▁scale ▁of ▁the ▁mes ocy clone ). ▁The ▁micro scale ▁is ▁the ▁smallest ▁of ▁the ▁meteor ological ▁scales , ▁with ▁a ▁size ▁under ▁ ▁( the ▁scale ▁of ▁torn ado es ▁and ▁waters p outs ). ▁These ▁horizontal ▁dimensions ▁are ▁not ▁rig id ▁divisions ▁but ▁instead ▁reflect ▁typical ▁sizes ▁of ▁phen omena ▁having ▁certain ▁dynamic ▁characteristics . ▁For ▁example , ▁a ▁system ▁does ▁not ▁necessarily ▁transition ▁from