The differences between future and present subseasonal predictability in the Northern Hemisphere provided by the tropics are evaluated using neural networks.
Northern Hemisphere
Posted inResearch Spotlights
Models Oversimplify How Melting Glaciers Deform Land
When glaciers melt, the land below deforms. Sea level data show that widely used models oversimplify the process.
Posted inEditors' Highlights
New Insights on Stratospheric Circulation from Fluorine Tracers
Stratospheric fluorine species have accumulated faster in the Northern Hemisphere over the past two decades reflecting interhemispheric differences in the Brewer-Dobson transport circulation.
Posted inEditors' Highlights
Is Earth’s Albedo Symmetric Between the Hemispheres?
The two hemispheres feature the same planetary albedo despite a larger land fraction in the north, because storms over the southern ocean are cloudier than their northern counterparts.
Posted inEditors' Highlights
High Climatic Response of High-Latitude Forests
The seasonal amplitude of atmospheric CO2 is increasing, partly due to boreal forest responses to warming. Photosynthesis and expansion of boreal forests are shown here to be temperature-limited.
Posted inResearch Spotlights
Warming in the Antarctic Stratosphere Affects Tropical Weather
Rapid temperature spikes in the stratosphere above Antarctica can influence weather and spark cyclones in the Northern Hemisphere’s tropics.
Posted inScience Updates
How Is Recent Arctic Warming Impacting East Asian Weather?
Arctic Warming and East Asia Weather Linkage Workshop; Incheon, South Korea, 13 May 2019
Posted inResearch Spotlights
Using Multiple Models to Improve Seasonal Forecasting
The first study to examine the ability of a suite of general circulation models to predict sudden warmings in Earth’s stratosphere highlights the potential for improving Northern Hemisphere forecasts.
Posted inResearch Spotlights
Aerosol Cutbacks May Bring Tropical Rains Farther North
Lower anthropogenic aerosol emissions in the 21st century may lead to warming that drives the Intertropical Convergence Zone northward.
Posted inResearch Spotlights
Large Volcanic Eruptions Cause Drought in Eastern China
In a study with implications for geoengineering, large Northern Hemispheric volcanic eruptions are found to cause strong droughts in much of eastern China.