Monsoons The Seasonal Winds What is a Monsoon? Monsoons are seasonal winds that blow across Asia and many other countries that bring rain and drought. Seasonal Patterns and Causes During half of the year the suns rays strike directly above the equator, the land mass of India is heated more than the Indian ocean. This draws moist hot air from over the ocean onto land, bringing the rains of the Southwest monsoons. When the tilt of the Earth brings the direct sunrays south of the equator, the heating of the Indian ocean draws the cooler dry air of the northeast monsoon from the highlands of India across the countries of South and Southeast Asia. As a result, India has three seasons: Hot and wet, warm, and very hot. During the hot, wet season, from mid-may to October, rain usually falls everyday and sometimes all day. Almost all of South Asia”s annual rainfall falls during this time. In the cooler season, which runs from late October to mid-February, the temperature for January averages 77 degrees Fahrenheit and in some areas possibly lower. The hottest season runs from late February to early May. At the end of the season, the average monthly temperature reaches the lower 100s in many parts of South Asia. By July rains have brought the average temperature down to 84 degrees Fahrenheit in most places. Where Monsoons Form and Occur Monsoons most often occur where large continents and oceans lie close together at latitudes on or near the equator. Southern and eastern Asia are well-known areas for monsoons. This is greatly due to the seasonal heating and cooling of the Asian continent. Continental heating causes this humid air to rise, condense, and form clouds and rain. Monsoons are mainly known to form in areas that are close to the equator but they can occur in other areas also. Adapting To Monsoons People from India are forced to adapt to the seasonal monsoons to survive. Farmers have to plant crops more than once a year so they can have enough food for the growing population. Since farmers cant just rely on the monsoon rain season, the government built dams to better control the water. Then they use that water and spread it out through the irrigation systems, this allows them to plant crops more than once a year and not just rely on monsoons. Destructive Effects Floods Destroyed homes Flood waters carry away fertile soil for crops Buildings and monuments can be destroyed People can be left homeless because of damage to their home Benefits of a Monsoon Farming Economy Helps environment Monsoons are COOL!
Pages to are hidden for
"Monsoons"Please download to view full document