Modeling western North Pacific tropical cyclones associated with ENSO
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.
Pacific sea level tilt predicts global temperature changes
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.
How predictable is the timing of a summer ice-free Arctic?
New research focused on determining how well the occurrence of an ice-free Arctic can be predicted. What the researchers found is that the uncertainty for the prediction of an ice-free Arctic, caused by internal climate variability, amounts to around two decades.
Future changes in ocean currents around Florida impact rainfall over land
Robust surface ocean currents around Peninsular Florida, namely the Loop and the Florida Currents, are shown to affect the terrestrial wet season of Peninsular Florida. New research shows that differences in the ocean bathymetry (or topography) of two novel numerical climate model integrations can influence the ocean currents and their impact on regional climate.
Antarctic sea ice helps maintain the Southern Ocean overturning circulation
Recent trends in sea ice have been studied heavily. A less well-understood problem is how sea ice affects the underlying ocean, particularly the poorly observed Southern Ocean. A new study shows how the seasonal drift of Antarctic sea ice may be more important for the global ocean overturning circulation than previously realized.
A cautionary note on the use of surface heat fluxes to diagnose the causes of the Atlantic Multidecadal Oscillation
The Atlantic Multidecadal Oscillation is a naturally occurring pattern of sea surface temperature change that is seen in the North Atlantic on decadal timescales and affects weather and climate. Some have suggested that the AMO is a consequence of variable large-scale ocean circulation. Yet new research suggests otherwise.