meridional wind

meridional wind

[mə′rid·ē·ən·əl ′wind]
(meteorology)
The wind or wind component along the local meridian, as distinguished from the zonal wind.
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Conventional observations assimilated into the HIRLAM 3DVAR system, where z is geopotential height, u is zonal wind component, v is meridional wind component, T is temperature, and q is specific humidity Observation type Parameters assimilated Surface SYNOP z SHIP z DRIBU z Upper air TEMP u, v, T, q AIREP u, v, T PILOT u, v Table 3.
Figure 11 shows an example of vertical wave number spectra for the zonal and meridional wind velocity components observed by the MU radar.
The bias of the meridional wind component at Tallinnamadal is negligible, but there seems to be a certain problem with its numerical reproduction at Kalbadagrund.
Atmospheric variables used (in pressure levels): Local Relative humidity (H); Geopotential height (Z); atmospheric Aire temperaturer (T); Meridional wind speed predictors (v); Zonal wind speed (u); Vertical wind speed (w) Levels 925 hPa, 850 hPa, 700 hPa, 500 hPa, 300hPa, 200 hPa, 100 hPa Variables at the surface: Sea level Pressure (SLP); 2 m temperature (T2) Data base:NCEP-reanalysis .
The meridional section on the left-hand side shows the zonally averaged overturning circulation at low latitudes; vertical and meridional wind directions are marked by white arrows.
Chang and Orlanski (1993) depicted in Hovmoller diagrams the eddy vertical mean kinetic energy, and Chang (1993) also showed the meridional wind component at 300 hPa, which was first suggested by Carlin (1953).
where l is longitude; [upsilon]([lambda], [phi], [sigma], t) and [theta]([lambda], [phi], [sigma], t) are the meridional wind and potential temperature fields, respectively; and H(x) is the Heaviside function, such that H(x) = 1 for x > 0 and otherwise H(x) = 0.
The ASL has deepened in recent decades, affecting the climate through its influence on the regional meridional wind field, which controls the advection of moisture and heat into the continent.
Only 10-min cluster-analyzed data of the zonal and meridional wind components u and u with an SNR of [greater than or equal to] 3 dB were used for wind speed and direction analysis.
We defined indices to describe the CEFs based on the vertical level of the maximum meridional wind near the equator.
Several pressure-level variables are currently available via WRIT: geopotential height, zonal and meridional wind, omega (vertical pressure velocity), air temperature, and relative and specific humidity.