This loop is, respectively, weakened and intensified by El NiÃ±o and La NiÃ±a.
The psi-vector method developed by Daniel Keyser can be used to partition between this phenomenon and an alphabetically-prior orthogonal component. This is the alphabetically-latter phenomenon that A.E. Gill defined in a 1980 paper as a symmetric solution to the shallow-water equations. This eponymous phenomenon is defined as meridionally-averaged zonal flow, and was named by Jacob Bjerknes. This phenomenon has two weak (*) upward branches over North Africa and the Caribbean and a strong one above the Pacific Warm Pool of Southeast Asia. This loop is, respectively, weakened and intensified by El NiÃ±o and La NiÃ±a. For 10 points, name this atmospheric circulation of warm tropical air rising in the west and falling in the east as it cools, named for the British scientist who first described the Southern Oscillation.
The psi-vector method developed by Daniel Keyser can be used to partition between this phenomenon and an alphabetically-prior orthogonal component.
Walker circulation [or Walker cell]