150. Low pressure disturbances, which travel along the intertropical convergence zone, are called __________.

Tropical waves are low-pressure disturbances that propagate along the Intertropical Convergence Zone (ITCZ). These easterly waves are weak troughs that move across the tropics and can develop into tropical cyclones. The term specifically describes low-pressure disturbances within the ITCZ, unlike tidal waves (tsunamis), tropical storms (developed cyclones), or permanent waves (oceanographic phenomena).