This National Science Foundation Project Grant of $388,769 awarded under the Geosciences program (CFDA 47.050) supports multi-wavelength spectroscopic and spectropolarimetric diagnostics of the solar atmosphere from April 2021 through March 2024. The University Corporation will utilize observations from the Dunn Solar Telescope and SDO/HMI to develop new non-force-free magnetic field extrapolation codes. These codes will estimate magnetic field line heights and strengths surrounding sunspots. The University of Alabama in Huntsville will receive a subaward to test the new codes on sunspot observations and develop photospheric magnetogram extrapolations. The research directly supports the program's goal of expanding fundamental Earth system science knowledge through atmospheric and solar research.
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