Is La Nina the reason behind rainfall in (August-September)?
In simpler terms, La Nina means girl child. It is an event just opposite to El Nino, describing the cold event along the South American coast off equatorial Pacific ocean. Here, trade winds get stronger than usual, pushing warm water towards Asia and neighboring regions resulting, increase amount of rainfall and flood in one region, while, drought in other parts of the world. It may lasts from one to three years, unlike El-Nino, which lasts hardly for a year. El Nino is associated with drought or weak monsoon while La Nina is associated with strong monsoon and above average rains and colder winters . It further results early arrival of cold and harsh winters as well. Like the last year, winters arrived in November. But, when asked by IMD Expert, he said that Indian Ocean Dipole ( The Indian Ocean Dipole (IOD) is defined by the difference in sea surface temperature between two areas (or poles, hence a dipole) – a western pole in the Arabian Sea (western Indian Ocean) and an ...