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The major monsoon systems of the world consist of the West African, Asian–Australian, the North American, and South American monsoons. The term was first used in English in British India and neighboring countries to refer to the big seasonal winds blowing from the Bay of Bengal and Arabian Sea in the southwest bringing heavy rainfall to the area.
This is the southwest monsoon. The reverse happens during the winter, when the land is colder than the sea, establishing a pressure gradient from land to sea. This causes the winds to blow over the Indian subcontinent toward the Indian Ocean in a northeasterly direction, causing the northeast monsoon. Because the southwest monsoon flows from ...
A monsoon is a seasonal prevailing wind which lasts for several months, ushering in a region's rainy season. [9] Regions within North America, South America, Sub-Saharan Africa, Australia and East Asia are monsoon regimes. [10] The world's cloudy and sunny spots. NASA Earth Observatory map using data collected between July 2002 and April 2015. [11]
Monsoon is a season when summer rain is more prevalent, usually from mid-June to September. Here's what causes the drenching storms.
The Year Without a Summer was an agricultural disaster; historian John D. Post called it "the last great subsistence crisis in the Western world". [4] [5] The climatic aberrations of 1816 had their greatest effect on New England (US), Atlantic Canada, and Western Europe. [6]
Summer monsoon rain over eastern New Mexico. The North American monsoon, variously known as the Southwest monsoon, the Mexican monsoon, the New Mexican monsoon, or the Arizona monsoon [1] is a term for a pattern of pronounced increase in thunderstorms and rainfall over large areas of the southwestern United States and northwestern Mexico.
Seasonal tropical forest, also known as moist deciduous, semi-evergreen seasonal, tropical mixed or monsoon [1] forest, typically contains a range of tree species: only some of which drop some or all of their leaves during the dry season.
The Köppen climate classification is the most widely used climate classification system. [2] It defines a tropical climate as a region where the mean temperature of the coldest month is greater than or equal to 18 °C (64 °F) and does not fit into the criteria for B-group climates, classifying them as an A-group (tropical climate group). [3]