On the equator, there are two wet and two dry seasons as the rain belt passes over twice a year, one moving north and one moving south.
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Using geographical information, it is possible that the northward move of the rain belt is already evident because of droughts in the western US, Syria and northern China.
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The weather in the tropics is dominated by the tropical rain belt, which moves from the northern to the southern tropics and back over the course of the year.
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However, there is also the possibility that climate change will slow down ocean currents and circulation, which can change the present-day dynamic and send the rain belt to the south.
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This warm ocean water is what eventually generates rain and thunderstorms, and because there is more warm water in the northern tropics, it is obvious that the tropical rain belt is moving northward.
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The tropical rain belt lies in the southern hemisphere roughly from October to March; during that time the northern tropics have a dry season with sparser precipitation, and days are typically sunny throughout.
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From May through August, the summer monsoon shifts through a series of dry and rainy phases as the rain belt moves northward, beginning over Indochina and the South China Sea ( May ), to the South China.
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Although the possible adversarial effects of the movement can be devastating, the northward movement of the rain belt could bring an increase of rain to areas that have been decimated by droughts, which could prove to be very beneficial.
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Flooding receded by Wednesday night as the torrential rain belt moved away from the Fiji islands, but in addition to deaths and displacement, it damaged vast areas of the 1999 sugar crop, which had been recovering from a bad drought.
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With a rain belt stretching across central China, floods were predicted to continue and to worsen in the northeast and along the Yellow River, which was expected to become dangerously swollen in the next few weeks, the official China Daily reported.
