The El Nino Phenomenon
Mar 5th, 2008 by Jasper
You have probably heard a lot about El Nino, the weather phenomenon that the weather forecasters on TV love to talk about. But what is El Nino? Is it a real phenomenon, or is it merely a catchphrase for something that weather forecasters and meteorologists simply cannot explain? Here is a brief bio on the El Nino phenomenon-everything you wanted to know about El Nino but were afraid to ask. So what exactly is El Nino?
El Nino is also known as the southern oscillation. The El Nino phenomenon can be described as a type of abnormal warming that occurs on the surface ocean waters in the part of the eastern tropical pacific that is known as the southern oscillation. The southern oscillation operates in a type of see-saw pattern that occurs when the surface air pressure between the western and the eastern tropical pacific is reversed. When this happens, the surface pressure is reversed as well as the ocean warming. When these two reversals are reversed in a mostly simultaneous manner, then weather forecasters and meteorologists tend to call this phenomenon as the southern oscillation or the El Niño phenomenon.
What causes the condition described as El Nino to start in the first place? The phenomenon known as El Nino is still a bit of a mystery to the scientists. In general, most scientists cannot pinpoint the exact reason for why the El Nino develops. However, most scientists believe that the El Nino has contributed to some of the most devastating weather that has ever occurred in the United States. For example, most researchers believe that the El Nino phenomenon is at least partially responsible for the disaster and devastation wrought by several large weather events such as Mississippi floods of 1993 and the California floods of 1995. The El Nino phenomenon is also thought to contribute to the drought conditions that have plagued many parts of the world, including areas in Australia, South America, and Africa.
The phenomenon of El Nino is also held at least partly responsible for the movement of storms that have spared such areas as Florida in North America. It is also thought that the El Nino phenomenon has helped contribute to the lack of serious hurricanes and storms in areas of the North Atlantic. However, just because El Nino has not caused serious storm damage in these areas, it does not mean that we can predict the future behavior of El Nino. Scientists are striving to figure out how the El Nino phenomenon works. The NASA Earth scientists are taking part in a worldwide struggle to understand how the El Nino events work. However, although scientists are now striving to understand the different patterns of El Nino, we still do not understand exactly how it works. For now, it seems, the El Nino phenomenon will remain a mystery.