A zonal circulation of the atmosphere confined to equatorial regions and driven principally by the oceanic temperature gradient. In the Pacific, air flows westward from the colder, eastern area to the
warm, western ocean, where it acquires warmth and moisture and subsequently rises. A return flow aloft and subsidence over the eastern ocean complete the cell
large scale wind engineering testing facility. In addition to aerodynamic test at large-scale and high wind speeds, the facility will allow for wind-driven rain testing of building envelope as well as
destructive testing of low-rise test buildings constructed with actual materials.