Pacific Ocean

Time series of eastern Indian Ocean thermocline depth in an ocean model hindcast
March 1, 2017

In a new paper from Journal of Climate, researchers show that changes in the Indian Ocean subsurface heat content over the last 50 years can be linked to Pacific Ocean variability associated with the Pacific Decadal Oscillation/Interdecadal Pacific Oscillation.

Composite analysis of sea surface temperatures based on Atlantic Water temperature variability.
October 26, 2016

Research shows that decadal shifts of subsurface Atlantic Water temperatures, along the North Atlantic Current, are associated with a progression of heat anomalies from the Gulf Stream region that coincide with sea surface temperatures extending to cover most of the subpolar and tropical North Atlantic; a signal similar to that of the Atlantic Multidecadal Oscillation.

Indo-Pacific tropical rain belt expanded and contracted in the past
October 5, 2016

A new study using a high-resolution stalagmite record from Australia with cave sites in southern China reveal a close coupling of monsoon rainfall on both continents, with numerous synchronous pluvial and drought periods, suggesting that the tropical rain belt expanded and contracted numerous times at multidecadal to centennial scales.

El Nino events and tropical cyclones, models compared to observations
September 7, 2016

It is well known that ENSO strongly affects the interannual variability of tropical cyclones in the western North Pacific. New research shows that models can reproduce interannual variability, but none can capture the distinction between eastern Pacific and central Pacific El Niño events that is found in observations.

Sea level rise in the Pacific
September 1, 2016

The Pacific Ocean has a significant influence on global mean surface temperature, as recently demonstrated during the 2015/16 El Niño. New research shows a new way to quantify the role of the Pacific Ocean using sea level information rather than traditional sea surface temperature data.

wind and temperature anomalies
May 18, 2016

New research shows how easterly winds in the summer of 2014 caused the anomalously warm subsurface water of the tropical Pacific—which presages an El Niño event and formed following the early 2014 westerly wind burst—to never discharge poleward, thereby remaining in the tropical Pacific and giving a head start to the developing 2015-16 El Niño.

ENSO and droughts and flooding
November 4, 2015

In the future, the Pacific Ocean's temperature cycles could disrupt more than just December fishing. Known collectively as the El Niño Southern Oscillation, or ENSO, the changing seasonal phenomena known as El Niño and La Niña could lead to at least a doubling of extreme droughts and floods in California later this century.

tropical Pacific decadal trends
October 27, 2015

Earth’s surface air temperature has significantly increased over the 20th century, although this overall global warming has been punctuated by periods of weaker/stalled warming or even cooling. Research suggests shifts in the circulation of the Pacific Ocean and atmosphere have played a key role in the present hiatus’ development.

Coral reefs Guam
October 5, 2015

Over the coming decades, the tropical Pacific is likely to experience more extreme sea level swings on timescales of several years. The culprit is a change in the El Niño-Southern Oscillation and its characteristic Pacific wind response, according to a new study using CMIP5 climate change projections.

Sea surface temperatures Pacific Ocean 2015
May 20, 2015

As of spring 2015, a wide strip of relatively warm water was present along the entire West Coast of North America. The causes and effects of this warm ocean water event is sometimes referred to as the “blob” and are the results of a new paper in Geophysical Research Letters.

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