Keywords: Movement of surface waters during El Nino.jpg en For reasons not completely understood in some years the anti-cyclone is less powerful than normal The weaker winds it produces fail to draw cold waters up to the ocean's surface thus opening the way for warm nutrient-poor tropical waters These changes in water temperature and climatic conditions are known as El Nino 2012-03-22 http //www photolib noaa gov/htmls/fish2203 htm NOAA Photo Library author PD-USGov Uploaded with UploadWizard El Nino Maps of El Niño/La Niña effects Maps in English Sea surface temperature maps 1997 Wind diagrams maps Maps of weather and climate of the Pacific Ocean Maps of weather and climate of South America |