Editing Intertropical Convergence Zone (section)

==Role in tropical cyclone formation==
[[File:ITCZ jun 25 2010.jpg|thumb|Hurricanes [[Hurricane Celia (2010)|Celia]] and [[Hurricane Darby (2010)|Darby]] in the eastern Pacific and the precursor to [[Hurricane Alex (2010)|Hurricane Alex]] in the Intertropical Convergence Zone. (2010)]]

[[Tropical cyclogenesis]] depends upon low-level [[vorticity]] as one of its six requirements, and the ITCZ fills this role as it is a zone of wind change and speed, otherwise known as horizontal [[wind shear]].  As the ITCZ migrates to tropical and subtropical latitudes and even beyond during the respective hemisphere's summer season, increasing [[Coriolis effect|Coriolis force]] makes the formation of [[tropical cyclone]]s within this zone more possible. Surges of higher pressure from high latitudes can enhance tropical disturbances along its axis.<ref>C.-P. Chang, J.E. Erickson, and K.M. Lau. [https://archive.today/20130117055614/http://ams.allenpress.com/perlserv/?request=get-abstract&doi=10.1175/1520-0493(1979)107%3C0812:NCSANE%3E2.0.CO;2 Northeasterly Cold Surges and Near-Equatorial Disturbances over the Winter MONEX Area during December 1974. Part I: Synoptic Aspects.] Retrieved on 2007-04-26.</ref>  In the tropical north Atlantic and the eastern portion of the tropical north Pacific oceans, [[tropical wave]]s move along the axis of the ITCZ causing an increase in thunderstorm activity, and clusters of thunderstorms can develop under weak vertical wind shear.{{citation needed|date=December 2020}}