Consider the following pairs of atmospheric phenomena and their descriptions.

Atmospheric Phenomena	Description
Cyclone	A large-scale circulation of winds around a central region of high atmospheric pressure, clockwise in the Northern Hemisphere.
Anticyclone	A large-scale circulation of winds around a central region of low atmospheric pressure, counterclockwise in the Northern Hemisphere.
El Niño	Occasional development of warm ocean surface waters along the coast of Ecuador and Peru.
La Niña	Cold ocean surface waters along the coast of Ecuador and Peru.

How many of the above pair(s) is correctly matched ?