"Fig 2: Schematic of the MJO. The cross section represents the
equatorial belt around the globe, or just the eastern hemisphere. E
stands for evaporation, SW for net shortwave radiation absorbed by
the ocean. The converging bold green arrows indicate the location of
strongest moisture convergence. The hollow green arrows show the
anomalous circulation associated with the MJO. The areas of enhanced
convection are indicated by the yellow schematic thunderstorm.
(adapted from Elleman 1997)"
Schematic is used here, but is a term of art in electronics--and
indeed clouds with their water content have a much stronger
dielectric value relative to DC field couplings between ionosphere
and ocean. The warm tropical waters are more conductive than colder
waters, and hence all along the tropics, electrically, there is a
connection to what occurs in the WARMEST tropical waters where MJO
exists. The proximaty of land to the tropics in that region also
serves as a place where contrasting DC coupling fields between land
and ocean provide monsoonal features and hence more 'dielectric'
material to present patterns for large scale AC features. While
patterns are ultimately tied to both the impedences involved, such as
roiling gas exchange conductivities, SSTs (warmer oceans are more
condcutive), biological based conductivities, and wind direction
driven ocean movement inductions, convection separates out charges
and 'powers' the circuitry of the global tropical patterns.