the effects of el niño and la niña on africa's climate

Giant sink-holes are swallowing up a Russian city, Chai Jing's review: Under the Dome – Investigating China’s Smog, Louis Theroux - Law and Disorder in Johannesburg. El Niño and La Niña: Weather’s sibling rivalry – For Dummies, La Niña Related Impacts Likely to Continue, EL NIÑO/SOUTHERN OSCILLATION (ENSO)DIAGNOSTIC DISCUSSION, Current La Niña Conditions and the Upcoming 2010-2011 Winter Season, NASA satellites capture a stronger La Nina, New Farm, Australia Queensland, before and after, Brazil flooding photos Brazil mudslides survivors angry. Subsidence and convergence – link to rainfall, 3. The weather created is just very different from that of the El Niño effect, which is a result of the much colder water temperature. Account Manager for http://www.campuspress.com. El Nino and La Nina Summary El Niño and La Niña processes and their effects on Africa’s climate View a great interactive website here: (Opens in a new page) View a great interactive website here: (Opens in a new page), 4. While focused on a small section of the Pacific near the Equator, these shifts have global ramifications. We use cookies to ensure that we give you the best experience on our website. These conditions produce an anomalous upper-level, ridge-trough pattern in the subtropics, with an amplified ridge over the subtropical Pacific in the ar… La Niña can be seen as the counterpart or opposite of the El Niño phenomenon. The map above from the International Research Institute for Climate Prediction (IRI) shows some of the precipitation and temperature patterns that might occur this coming winter if El Niño … La Niña is likely to exacerbate the negative impacts of El Niño and stretch affected communities to their absolute limits. La Niña, El Niño or the lack of either, known as the neutral phase, is only one large-scale forcing on the atmosphere. After an El Niño, the climate does not always swing to a La Niña phase.

El Niño is a natural phenomenon experienced in the equatorial Pacific which causes temporary alterations in the world climate. El Niño and La Niña processes and their effects on Africa’s climate. Moderate La Niña...November through January sea average surface temperature anomalies in the Niño 3.4 Region between -1.4°C and -1.9°C Strong La Niña ...November through January absolute sea average surface temperature anomalies in the Niño 3.4 Region greater than -1.9°C El Niño, warmer than average sea surface temperatures in the Pacific, results in complex interaction between the ocean and atmosphere. This impacts global weather and climate. It is believed that La Niña 's cooling of the equatorial Pacific tends to favour hurricane formation in the western Atlantic.

El Niño and La Niña are examples of oscillations that have a greater impact on our climate with effects that are perhaps surprisingly felt all over the globe (5). The role of oceans in climate control in Africa, 5. At the same time, the equatorial Walker circulation is weaker than average. Case Study – The global impact of La Nina (2010/2011), http://esminfo.prenhall.com/science/geoanimations/animations/26_NinoNina.html, 1.

Primary Causes of La Niña. There have been only 17 moderate to strong La Niñas compared to 25 moderate to strong El Niños in the twentieth century. Passionate about South Africa!

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