El nino and la nina phenomenon pdf free

It is a recurrent weather phenomenon that takes place approximately every two to seven years and usually lasts between 12 and 18 months cpc, 2005. The enso cycle is a scientific term that describes the fluctuations in temperature between the ocean and atmosphere. Write your answers on the spaces before each number. The united nations has declared 2015 the hottest year since record keeping began. A major goal in this unit is to understand the interconnectedness between the ocean and our weather and climate. Knowledge of ensos predictability and known impacts can benefit agriculture. Meteorologists thus named the phenomenon the elnino southern oscillation, or enso.

It is a recurrent weather phenomenon that takes place approximately. This helps to generate heavy rains over southeastern asia and northern australia and. This event is associated with adverse effects on fishing, agriculture, and local weather from ecuador. A free powerpoint ppt presentation displayed as a flash slide show on id. Some climates are small in scale, like the climate of a local region or the microclimates within an ecosystem, and some are much larger, such as the climates of entire continents, or the worlds oceans. They disrupt normal patterns of wind and rainfall, in different ways, in many parts of the world including new zealand. It is normally characterized by complex and abnormally warm ocean temperatures in the pacific ocean in the area near the equator which results in global weather events and seasurface temperature changes. These videos are a free resource and are available on our website at oceantoday. In the pacific ocean near the equator, temperatures in the surface ocean are normally very warm in the western pacific and cool in the eastern pacific 2. These shifts, known as teleconnections, occur via the effects of tropical seasurface temperatures on the upper atmosphere.

The enso cycle is a scientific term that describes the fluctuations in temperature between the ocean and atmosphere in the eastcentral equatorial pacific approximately between the international date line and 120 degrees west. These pressure changes alter the strength of the trade winds. Coupled because enso involves interaction between the ocean and the atmosphere both of which play a role in reinforcing changes in each other it is known as a coupled oceanatmosphere phenomenon. Episodes of ocean warming that affect the eastern tropical pacific are called a. Another fast paced animation to help you with important earth science concepts. Although meteorologists have known about the southern oscillation for more than a halfcentury, its. In the pacific ocean near the equator, temperatures in the surface ocean are normally very warm in the western pacific and cool in the eastern pacific2. Enso especially impacts winter rainfall and temperature distribution.

Typically, the episodes last for nine to twelve months. This name was used for the tendency of the phenomenon to arrive around christmas. The enso cycle is a scientific term that describes the fluctuations in temperature between the ocean and atmosphere in the eastcentral equatorial pacific approximately between the. Impacts and mechanisms master s thesis presentation by lt paula hildebrand march 15, 2001 powerpoint ppt presentation free to view. This is due to the fact that this current starts to flow around christmas and hence the name referring to baby christ. The christ child in oceanography and climatology, the anomalous appearance, every few years, of unusually warm ocean conditions along the tropical west coast of south america. These shifts, known as teleconnections, occur via the effects of tropical sea surface temperatures on the upper atmosphere.

Both are an oscillation in the temperatures between the atmosphere and the ocean of the eastern equatorial pacific region, roughly between the international dateline and 120 degrees west 2. The enso phenomenon also provides opportunities to study the effects of longerterm climate change on. Water near the equator warms up to a higher temperature, which causes the air above it to warm up too. Climatology for monthly data the climatology c is a set of 12 constant numbers that are.