zonal flow


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zonal flow

[′zōn·əl ′flō]
(meteorology)
The flow of air along a latitude circle; more specifically, the latitudinal (east or west) component of existing flow. Also known as zonal circulation.
References in periodicals archive ?
The top of this region is defined by where the zonal flow weakens to less than about 1 m/s (2 mph).
The ACRE-induced enhanced equatorward flux of wave activity in the lower subtropical stratosphere accounts for strengthening of the westerly zonal flow in the subtropical lower and midstratosphere.
Contract notice: Zonal flow meters and pressure reducers with armature and performative construction works according to specification.
above more ore less 16,000 feet) creating a very strong zonal flow from west to east.
At the surface stations, the meridional (southern) flow exceeds the zonal flow during the cold season (November-March).
PNA positive (negative) winters may likely be colder (warmer) than usual and Serreze and others (1998) indicate that much of the winter precipitation of the eastern US is rain rather than snow during the zonal flow dominating the negative PNA phase winters.
9% compared to the high-low pressure system), followed by zonal flow (5.
The PNA significantly explains large-scale rainfall variability of the region, suggesting an increase in winter precipitation during the years with zonal flow across the United States.
They depicted the long planetary waves and the corresponding hemispheric wavenumber N (normally 2-6), which was inversely proportionally to the zonal flow U.
Contract award: Zonal flow meters and pressure reducers and playing with reinforcement works for specification.
Stronger high pressure cells dominate local weather conditions by pushing the opposing zonal flow from the Indian Ocean away to the east.
Indeed, the bias associated with the zonal flow (i.