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The onset of the summer monsoon is marked by a period of premonsoonal rain over South China and Taiwan in early May. 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 Yangtze River Basin and Japan (June) and ...
However, a rainy monsoon is not necessarily a normal monsoon – that is, one that performs close to statistical averages calculated over a long period. A normal monsoon is generally accepted to be one involving close to the average quantity of precipitation over all the geographical locations under its influence (mean spatial distribution) and ...
Some areas with pronounced rainy seasons will see a break in rainfall mid-season, when the Intertropical Convergence Zone or monsoon trough moves to higher latitudes in the middle of the warm season. [7] When the wet season occurs during a warm season, or summer, precipitation falls mainly during the late afternoon and early evening.
Tamil Nadu receives most of its annual precipitation in the northeast monsoon season. In China, a common temperature-based reckoning holds that it is winter for the period when temperatures are below 10°C on average and summer for the period when temperatures are above 22°C on average.
The Asian monsoon and Indian Ocean monsoon are known for bringing intense rainfall after an extended dry period. Goa, a state in southwestern India, is generally rainless from January through March.
A period of warming sea surface temperatures is found five to ten days prior to a strengthening of MJO-related precipitation across southern Asia. A break in the Asian monsoon, normally during the month of July, has been attributed to the Madden–Julian oscillation after its enhanced phase moves off to the east of the region into the open ...
Without the presence of the monsoon, surface winds across the globe would have been primarily zonal and easterly. The geologic record, however, indicates that winds exhibited a meridional cross-equatorial pattern but also that western Pangea experienced westerly flow during the peak period of the megamonsoon. [3] [9] [10]
1.3.1 Period. 1.3.2 Temperature. 1.3.3 Rainfall. ... This is known as a monsoon break. This occurs mostly in North Bengal plains and in mountains in July and August ...