El Nino (La Nina) years are associated Vith dry (wet) conditions in South Africa (e.g. Lindesay, 1988; Nicholson and Kim, 1997; Richard et al, 2000; Landman and Mason, l 999b ), and modelling studies have shown that during a severe El Nino event there is a reduction in water availability and decreased maize yields in …
Is La Niña dry or wet?
Where El Niño is wet, La Niña is dry. While El Niño conditions and their seasonal impacts look very different from normal, La Niña conditions often bring winters that are typical — only more so.
What is La Niña in South Africa?
La Niña is a weather pattern that results in the abnormal cooling of sea surface temperatures in the Pacific. The event enhances the probabilities for summer rains globally including Southern Africa, particularly in Namibia, Botswana, Zimbabwe, Mozambique, Zambia and South Africa.
What is La Niña effect?
La Niña is a weather pattern that occurs in the Pacific Ocean. In this pattern, strong winds blow warm water at the ocean’s surface from South America to Indonesia. As the warm water moves west, cold water from the deep rises to the surface near the coast of South America.
What problems does La Niña cause?
The effects of La Niña are experienced globally. With catastrophic floods, hurricanes and cyclones in countries on the western part of the Pacific and, on the other hand, bushfires and droughts along the west coast of the USA and East Africa, farms are adversely affected, and crops can be produced as expected.
How does La Niña affect Africa?
La Niña increases the probability of below-average rainfall during the deyr/hageya season (October–December) in central and southern Somali regions, resulting in earlier depletion of water and pasture, which will likely cause declines in livestock body conditions, productivity, and market values.
Does La Niña affect Africa?
Over 50 million people are in need of immediate food assistance in the Horn East and Central Africa, with numbers expected to rise significantly as the region braces for harsh, climate fuelled La Niña conditions, said Oxfam today.