Por cierto, también se les conocen como pluma tropical y ríos de humedad.
Una pluma tropical es algo distinto.
La definición es más precisa que la de los RA. Se desarrollan en niveles medios y altos, y se observan en IR. Los RA son en la baja y media troposfera, y no se observan en IR.
Tropical Plume: Continuous bands of upper- and midlevel clouds,stretching for more than 2000 km from the Tropics poleward and eastward into the subtropics, are a fre-quently observed feature in IR imagery at all seasons and have been defined as tropical plumes (TPs) by McGuirk et al. (1987, 1988)
TPs typically form on the downwind side of a positively tilted (southwest–northeast-oriented) upper-level subtropical trough atlow latitudes and are usually accompanied by a sub-tropical jet (STJ) streak.
Another characteristic feature of TPs is a very dry (dark) area in water vapor (WV) imagery to the north-
west...