Question

Horizontal motion of atmosphere does not include
1.Planetary circulations
2. Synoptic.circulations
3.Meso scale motions
4.Trade winds​

Answer 1

Answer:

Pacific North America (PNA)

Atmospheric circulation variability over the extratropical Pacific is partially dominated by Rossby wave patterns originated in the subtropical western Pacific, associated with anomalous tropical heating [26]. The wave-like pattern that propagates towards the North American Continent is known as PNA pattern, similarly its southern hemisphere counterpart become known as the Pacific-South American