Saturday, May 16, 2015

Super El Nino Likely as Huge Warm Water Wave Hits West Coast, Extreme Marine Die Off Developing

In early March, the strongest wave of tropical convection ever measured (known as the Madden Julian Oscillation) by modern meteorology moved into the western Pacific from Indonesian waters bringing an outbreak of 3 tropical cyclones, including deadly category 5 Pam which ravaged the south Pacific islands of Vanuatu. This extreme outburst of tropical storms and organized thunderstorms pulled strong westerly winds across the equator, unleashing a huge surge of warm water below the ocean surface. Normally, trade winds blow warm water across the Pacific from the Americas to Australia and Indonesia, pushing up sea level in the west Pacific. When the trade winds suddenly reversed to strong westerlies, it was as if a dam burst, but on the scale of the earth's largest ocean, the Pacific. The front edge of that massive equatorial wave, called a Kelvin wave, is now coming ashore on the Americas.

A huge surge of warm water from an enormous deep equatorial wave called a Kelvin wave is now hitting the west coast of the Americas. A wave of similar size struck last year bring a massive marine die off to the west coast, but this year's marine die offs will likely be worse because climate models are predicting it will trigger a super El Nino.
Detailed research in California has found that nutrient upwelling was at a minimum in the El Nino year of 1992 and the super El Nino year of 1998. A huge surge of warm water from an enormous deep equatorial wave called a Kelvin wave is now hitting the west coast of the Americas. A wave of similar size struck last year brought a massive marine die off to the west coast, but this year's die offs will likely be global because climate models are predicting a super El Nino. Credit NOAA.
 
Last year the largest Kelvin wave ever seen in the Pacific ocean developed in February. After it came ashore and the surge of warm water moved up the Pacific coast, the upwelling of nutrient rich cold water dramatically slowed, and marine life began starving up and down the coast of north America. As the warm water moved north from the equator it merged with an enormous mass of warm stagnant water dubbed "the blob" which had built up in the central north Pacific ocean under the mound of high barometric pressure known as the Pacific high. Because the Pacific high had expanded north of its normal position, possibly because of climate change, warm, stagnant low nutrient water covered a large percentage of the surface of the north Pacific ocean.  READ MORE

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