This National Science Foundation (NSF) Geosciences Program (CFDA 47.050) Project Grant award of $113,466 to Virginia Polytechnic Institute & State University, doing business as Virginia Tech, aims to investigate the relative contributions of different lower atmospheric and upper atmospheric sources to the observed large-scale gravity waves in the thermosphere and their impacts on tides, planetary waves, and atmospheric circulations.
The project will utilize controlled simulations with the Specified-Dynamics Whole Atmosphere Community Climate Model with Thermosphere and Ionosphere Extension (SD-WACCM-X) as well as satellite observations from the ICON-MIGHTI and TIMED-SABER instruments to quantify the importance of lower atmospheric gravity wave sources in the thermosphere and ionosphere. This work seeks to improve understanding of gravity wave coupling processes and the lower atmospheric influences on space weather forecasting. The award period spans January 1, 2025 to December 31, 2027.
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