However, the meridional air motions are much slower than zonal winds. Zonal and meridional flow are directions and regions of fluid flow on a globe. These scenarios are often described in meteorology as zonal or meridional. There are two principal radii of curvature&colon; along the meridional and prime-vertical normal sections. The ciliary fibers have circular (Ivanoff), longitudinal (meridional) and radial orientations. Extratropical cyclones in meridional flows tend to be stronger and move slower. This force acts to move the body along longitudes or in the meridional directions. All proxies included are useful in inferring the behavior of the meridional overturning circulation. Planes that include the optical axis are "meridional" planes. On occasion, it is imprecisely used to refer to the meridional overturning circulation, "MOC". The usual antonym for "septentrional" is the term "meridional", which refers to the noonday sun. This pattern can buckle and thus become a meridional flow. The meridional extent of them appears to match the actual width of jets. Antipolo is in the northern half of Rizal Province, close to its meridional center. It carries 150 eggs along each meridional canal.