1 Impressive Dagger Moth, a moth of the Noctuidae family; see Acronicta impressa.  Impressive Syndrome, a genetic disorder that occurs in horses and humans; see Hyperkalemic periodic paralysis.
The ITCZ is a zone of convergence at the thermal equator, where the trade winds meet. It is an area of high pressure. The ITCZ is a zone of convergence at the thermal equator, where the trade winds meet. The ITCZ is a zone of convergence at the equator, where the trade winds meet. It is stationary throughout the year.
During thistime of year, warm water (w27 C or greater) occurs on bothsides of the equator in this region and the ITCZ, in its southernmost position, is split by a zone equatorial ocean upwelling(i.e., cool equatorial SSTs).