Archives par mot-clé : El Nino

2015-16 El Nino behind large-scale surface melting event in Antarctica

by Nature Communications, June 15, 2017 in ClimatChangeDispatch

The West Antarctic Ice Sheet, a landbound mass of ice larger than Mexico, experienced substantial surface melt through the austral summer of 2015-2016 during one of the largest El Niño events of the past 50 years, according to scientists who had been conducting the first comprehensive atmospheric measurements in the region since the 1960s.

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Extreme temperatures in Southeast Asia caused by El Niño and worsened by global warming

by K. Thirumalai et al., June 6, 2017, in Nature Communication

In April 2016, southeast Asia experienced surface air temperatures (SATs) that surpassed national records, exacerbated energy consumption, disrupted agriculture and caused severe human discomfort. Here we show using observations and an ensemble of global warming simulations the combined impact of the El Niño/Southern Oscillation (ENSO) phenomenon and long-term warming on regional SAT extremes. We find a robust relationship between ENSO and southeast Asian SATs wherein virtually all April extremes occur during El Niño years.

Satellite Data: Post El Niño Global Surface Cooling Continues… Pause Extends To 20 Years

by P. Gosselin, April 12, 2017

Critical German climate site (WBDE) reports that the earth’s surface is cooling, and presents the latest chart from NCEP. As of April 11, the measured global values continue to decline (black curve) as do the computed values for April 18.

The time-delayed post El Niño cooling is now showing up in the UAH and RSS satellite data.

Further proof El Niños are fueled by deep-sea geological heat flow

J.E. Kamis, geologist, January 27, 2017

Origine géothermique de El Nino : quelques évidences?

… Based on this information, it is most likely these eruptive El Niño heat pulses are the result of flow from the various individual components of a giant Solomon Island Area seafloor circulating system. Individual geological components include fractured rock layers, hydrothermal vents, seafloor volcanoes, and open faults. The circulating system is activated by upward movement of deep magma chambers located beneath the Solomon Island area. This movement triggers a high-magnitude earthquake swarm, which in turn activates the seafloor circulating system….