El Nino-A short term signal of a long term and a large scale climate variation

winds that prevail throughout the year. The wind stress over the ocean surface pushes warm surface water towards cold throughout the year. There are also other reasons such as large scale oceanic circulation of cold water from the high latitudes of the Southern hemisphere and the movement of cold water upwards due to the process of upwelling, for the water to be cold in this equatorial region. The temperature difference between the Eastern o Celsius.


El Nino -A short term signal of a long term and a large scale climate variation
Man has lived in harmony with nature adapting to its changes.Science has enabled him to get a better understanding of nature and how it behaves.Scientists have studied how and why changes take place in natural phenomena such as weather and climate.Based on the results we have further adapted to the environment around us.
Until recent times, meteorologists studied only the atmosphere while oceanographers studied the oceans.Scientists have now realized that the atmosphere and the oceans need to be studied together as their behaviour is coupled.It is now well established that weather and El Nino is such an oceanic event occurring in the in an unprecedented damage the world over.This led multidisciplinary teams of scientists to conduct detailed studies of the ocean especially the El Nino activity in the which scientists with multidisciplinary backgrounds from almost all countries of the world participated.This programme mainly focused on the largest tropical ocean winds, sea surface temperature, upper ocean heat content, surface currents and sea level, scientists discovered many facts on physical processes related to El Nino that On the global scale, the atmospheric surface pressure winds that prevail throughout the year.The wind stress over the ocean surface pushes warm surface water towards cold throughout the year.There are also other reasons such as large scale oceanic circulation of cold water from the high latitudes of the Southern hemisphere and the movement of cold water upwards due to the process of upwelling, for the water to be cold in this equatorial region.The temperature difference between the Eastern o Celsius.
Every year around December, associated with the seasonal changes, the waters off the coast of Peru become warmer.This annual phenomenon was called El Nino.Once in four to seven years the warming becomes strong El Nino is used to identify only those exceptional warm events rather than the annual the area gets totally disrupted.climate.Under normal conditions, air rises upwards Thailand, China, Japan, extending towards India and desert with no rain throughout the year.Usually, once in four to seven years, the normal pattern changes.Trade winds become weak and the warm water in the Western which is an abnormal condition for that region and the is a complete reversal of the weather pattern over the region and is known as the El Nino Southern Oscillation many ways.
Historically there has been mild, moderate and strong El Nino events recorded.The 1982/83 event was a major El Nino event and it was considered the strongest in the century until 1997/98 event which was found to be even stronger.During these events the temperature gradient o drought conditions for over 6 months.
The surface pressure is generally low in the Western experiences rainy weather accompanying thunderstorm periods.
During El Nino years the pressure is relatively high surface pressure is high, the winds tend to blow away from this area and dry air from the upper atmosphere sinks and this in turn prevents upward motion of the air, cloud formation and rainfall.Therefore, during El Nino, continuous dry weather is experienced in this region for a long period of time.However, the coupled system of the drought condition depends on the strength of El Nino signal and various other regional scale variations.
During a strong Nino event, weather changes occur throughout the world.During the 1982/83 event, while some areas of the world experienced drought conditions, El Nino was estimated to have caused over USD 10 billion in damages the world and over 2000 deaths.There was a mild ENSO El Nino effect.Therefore, the island's weather shows a continent.
this year, the meteorological indicators pointed to developing an El Nino little rain.However, according to the latest records, indications are that a mild El Nino will occur and the region will get back to normal weather producers, has recovered from drought although low rainfall persisted in some areas of New South Wales and Southern Queensland.In India normal rainfall is in the late monsoon period.China's Northern provinces are still in the grip of a drought although heavy is important to study about El Nino and related phenomena in order to predict unusual weather conditions affecting various parts of the world.In the event of an El Nino, these studies will help planners to decide on precautionary measures to be taken in agriculture, water management, and power generation.Scientists throughout the world are engaged in research trying to understand this earth science phenomenon.
of El Nino understood better because we all share one on El Nino bearing on the country's economy.Therefore, it is also important to focus research towards understanding El Nino