A New Perspective on Shallow Convective Clouds
PNNL researchers deduced two superimposed processes that contribute to the organization of convective clouds.
Natural Variability of Antarctic Sea Ice Can Obscure Changes from CO2 and Surface Temperature Increases
As the planet has warmed during recent history, summer sea ice extent has been decreasing in the Arctic but expanding in the Antarctic at modest but significant rates. This study helps explain why the hemispheres are behaving differently.
On the Radar: Hot Spots for Serious Storms
Cloud and precipitation characteristics observed by the Global Precipitation Measurement spaceborne radar allowed researchers to establish, for the first time, a global map of mesoscale convective systems in mid- and high-latitude regions.
Wildfires Trigger Violent Storms with Large Hail and Lightning
Research reveals how heat and aerosols from wildfires initiate and invigorate severe storms.
Ice Nucleation Ability: Loess and More
The results of this study provide an analysis of the ice nucleation efficiency of bare and acid coated loess from the Columbia Plateau region of the northwestern United States.
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Roadmap for Net-Zero Emissions in California by 2050 Also Brings Health Benefits
Early achievement of net-zero greenhouse gas emissions in California brings much larger health benefits than economic cost.
Toward Optimal Simulation Strategies for Understanding Model Biases and Sensitivities
PNNL researchers performed and analyzed a large set of sensitivity experiments carried out with the Energy Exascale Earth System Model (E3SM) atmosphere model to identify implementations of a technique called nudging.