Researchers have created a dataset of the whole atmosphere, enabling new research to be conducted on previously difficult-to-study regions.
Using a new data-assimilation system called JAGUAR-DAS, which combines numerical modeling with observational data, the team created a nearly 20-yearlong set of data spanning multiple levels of the atmosphere from ground level up to the lower edges of space. Being able to study the interactions of these layers vertically and around the globe could improve climate modeling and seasonal weather forecasting.
To help overcome these increasing challenges, researchers have created a dataset of the entire atmosphere. Ranging from September 2004 to December 2023, it spans multiple levels of the atmosphere from ground level up to the lower edge of space, about 110 kilometers above Earth's surface. The region between about 50 km to 110 km is particularly of interest, as it is so notoriously difficult to study that it had previously been dubbed the"ignorosphere.
"Atmospheric general circulation models which range up to the lower edge of space have only been developed by a limited number of research institutions around the world, including our own," said Sato."Recent studies indicate that extreme stratospheric phenomena can start at least in the upper mesosphere. Therefore, quantitative elucidation of phenomena in the mesosphere and lower thermosphere is extremely important for weather forecasting.
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