News & Publications

Research Highlights

US CLIVAR aims to feature the latest research results from the community of scientists participating in our interagency-sponsored projects, working groups, panels, science teams, and workshops. Check out the collection of research highlights below and sort by topic on the right. 

Arctic Sea Ice
December 11, 2015

Climate model projections provide a compelling reason to believe that anthropogenic warming will lead to a pronounced reduction in Arctic sea ice extent over the course of this century and beyond, but there is no reason to expect this long-term sea ice retreat to occur steadily through time.

AMOC impacts on biogeochemistry
December 8, 2015

The underlying physical driver for the decadal variability in the Gulf Stream path and the regional biogeochemical cycling is linked to the low-frequency variability of the large-scale ocean circulation in the Atlantic, also known as Atlantic meridional overturning circulation (AMOC).

Ocean reanalysis
November 18, 2015

Contrary to the conventional expectation that the imposition of subsurface data constraints will draw the AMOC in reanalysis products into agreement, Karspeck et al. finds that the historical AMOC variability is less consistent among the reanalysis products than in corresponding simulations without subsurface data constraints.

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.