The frequency of the north-eastern trade winds decreasing

Scientists from the University of Hawaii at Manoa say reducing the frequency of occurrence of the trade winds that blow from the north-east in the last four decades. Thus, even 37 years ago, the number of days in the year when the airport Honolulu blowing trade winds, was 291. Now, however, the figure had fallen to 210 days.

The frequency of the north-eastern trade winds decreasing

Such a distinct change in the character of the northeast trade winds are essential for the normal climate of Hawaii. They affect the wave height, the formation of clouds, rainfall over certain parts of the island and the ocean. The smaller the trade winds come to the islands, the greater the likelihood that the weather conditions are unfavorable, and that air mass — less mobile.
Hawaii's climate may become much drier, if the amount of the trade winds continue to be reduced, because they are the primary source of moist air masses. Indeed, observations show that in the last 30 years of drought on the islands increased. Over the last year, about 50% of Hawaii were in the power of drought of varying strength.
In 2010, the north-east trade winds are observed only in the Hawaiian airports in Gonrolulu, Kahului, Hilo and Liu with the weather. Next, the scientists turned to the zone of observation areas near the islands of the ocean, where there are special buoys, and other areas of the Pacific. It is also planned to build a simulation model to predict the dynamics of the movement of sediments and the trade winds.
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