Sentences with phrase «easterly waves»
Easterly waves are ripples or disturbances in the atmosphere that move from east to west. They can bring changes in weather patterns, like causing rainstorms or thunderstorms. Full definition
Li, G. N. Kiladis and M. F. Cronin (April 2008): Horizontal and Vertical Structure of Easterly Waves in the Pacific ITCZ.
esrl.noaa.gov
In my paper, I hypothesize that fewer African Easterly Waves of the required intensity / scale / flavor enter the Eastern Pacific basin since 1995ish for at least one reason: they develop first in the Atlantic or get steered away from the Central American crossing point.
Given the different land - sea configurations and the different role of ENSO in the different basins, and the fact that disturbances in other basins do not form from easterly waves from off of Africa, there is every reason to expect that storms in other basins have different characteristics.
Weather disturbances in the trade winds, known as easterly waves, are another source of cloud development and precipitation in the tropics.
On average, about 10 % of the weather disturbances associated with easterly waves develop into hurricanes.
I'm wrapping up my work on African easterly waves at NC State and heading out to California to start a new job at Lawrence - Livermore National Lab (LLNL).
Although hurricane do not occur IN Africa, their precursors African Easterly Waves do occur over Africa.
During sum - mer, satellite images show dust outbreaks that emerge from the west coast of Africa, 4500 km east of Barbados, in pulses every 3 to 5 days, following behind easterly waves.
Easterly waves develop first as a weak disturbance in the atmosphere, usually because of the presence of localized warmer ocean temperatures.
The increased activity in the Northwest Pacific, tropopause height, land - sea configurations, basin size, ENSO, and the role of easterly waves that Dr. Trenberth elaborates on are not at all relevant in this context.
Thorncroft C. D., N. M. Hall and G. N. Kiladis (November 2008): Three - Dimensional Structure and Dynamics of African Easterly Waves.
A very large, broad, easterly wave is located just south of the Cape Verde islands, with a disorganized low - mid-level circulation at about 12N 25W (easy to spot from the 07:25 Z WindSat and 10:55 Z ASCAT microwave scatterometer overpasses).
Whether cumuli organize into TCs, easterly waves, Madden - Julian oscillations or something else, or maybe remain rather random, is not constrained by global - scale forcing.
Of course in tropics the tropical storms have been poorly represented, but so have been Madden Julian Oscillation, easterly waves, monsoons, and just about every phenomena that organizes convection.
Numerous thunderstorms form on the East side of the easterly wave because of convergence.
Figure 7u - 2: Most tropical storms develop from a weather feature known as an easterly wave.
The radiative effect of dust, which, for example, could intensify the African Easterly Waves, may be a feedback mechanism between climate and dust (Jones et al., 2004).
The dry dusty air that was drawn into the easterly wave, tropical depression and Helene clearly came from Africa.
Hurricane Helene was traced from central Africa to African coast as an easterly wave which then turned into a tropical depression, and finally a hurricane.
If dust arrives in pulse - like events following easterly waves, which initiate tropical storms in the central Atlantic, then there might be a temporal issue — the easterly wave initiates a tropical storm, but does the following dust affect it or not?