“University of Tokyo's 220-Meter Global Model Eliminates 'Popcornlike' Rain, Boosting Extre” — what this page in the network covers. A new high-resolution global atmospheric model developed by researchers at the University of Tokyo has achieved an unprecedented grid spacing of just 220 meters (720 feet), dramatically improving the accuracy of weather and climate simulations. Traditional global models divide the atmosphere into grid cells spanning tens to hundreds of kilometers, which often produce spurious 'popcornlike' rain—bursts of heavy precipitation that appear in simulations but not in reality. By refining the grid to 220 meters, the team eliminated these artifacts, enabling more faithful representation of convective processes and extreme local weather events.
This advancement matters because accurate prediction of heavy rainfall, thunderstorms, and other high-impact phenomena is critical for disaster preparedness, agriculture, and water resource management. The model's ability to resolve fine-scale atmospheric dynamics from a global perspective marks a significant step toward seamless weather and climate prediction. This listing links straight to the original page, where the content is available in full.