Data that were used to characterize the stratospheric polar vortex (geopotential height and zonal wind
velocity at 10 hPa) were provided on a 0.
4) Sea Surface Temperature (March to May + tendency between March to May & December to February), North Atlantic Mean Sea Level Pressure (May) and North-Central Pacific 850 zonal wind
4) Sea Surface Temperature (March to May+tendency between March to May and December to February), North Atlantic Mean Sea Level Pressure (May) and North-Central Pacific 850 zonal wind
gradient (May), he said.
For example, an abrupt increase in the upper-air (500 and 850 hPa levels) zonal wind
component in January and February took place around 1987 (Keevallik, 2011).
Operational forecasts for the onset of the monsoon are issued on the basis of six indicators -- minimum temperature over northwest India, pre- monsoon rainfall peak over the southern peninsula, outgoing long- wave radiation over South China Sea, lower tropospheric zonal wind
over southeast Indian Ocean, upper tropospheric zonal wind
over east equatorial Indian Ocean and outgoing long- wave radiation over southwest Pacific region.
In the middle atmosphere (10-100km altitude), consisting of the stratosphere (10-50 km), the mesosphere (50-90 km) and a part of the lower thermosphere (90-150 km), the zonal wind
velocity can reach magnitudes as large as 80m/sin mid-latitudes at an altitude of about 50 km.
These include several of long-term significance, not only on the great northern upheaval, but also on the accelerating circulation of the Great Red Spot, the long-term tracking of anticyclonic ovals, and zonal wind
profiles obtained from amateur images by Grischa Hahn in the JUPOS project.
There is a strong relationship between vertical propagation of Rossby waves and zonal wind
Surface recordings at Pakri and Sorve show that in some cases the zonal wind
component was even negative, i.
Detection of a 40- to 50 day oscillation in the zonal wind
in the tropical pacific.
Grain-size data suggest that an increase in zonal wind
intensity of the Southern Hemisphere trade winds occurred in the early part of the late Miocene, the only significant change found in those Neogene records.
Change in zonal-mean zonal wind
(blue) and sinuosity (waviness in 500-hPa isohypses; red) over North America during (left) Aug and (right) Jan 2081-2100 minus 1981-2000 [National Center for Atmospheric Research (NCAR) Community Earth System Model (CESM) representative concentration pathway 8.