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Abstract

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Field research campaigns in 2019 and 2020 collected hourly atmospheric profiles via radiosonde surrounding the 2 July 2019 and 14 December 2020 total solar eclipses over South America from locations within the paths of eclipse totality. As part of these atmospheric data collection campaigns, the eclipse module of the 15 Advanced Research Weather Research & Forecast (WRF-ARW) model was utilized to model meteorological conditions before, during, and after the eclipse events. The surface and upper air observational datasets collected through these campaigns have enabled further assessment and validation of the WRF-ARW eclipse module's performance in simulating atmospheric responses to total solar eclipses. We provide here descriptions of the field campaigns for both 2019 and 2020 and present results from comparisons of meteorological variables both at the 20 surface and aloft using observational datasets obtained through the campaigns. The paper concludes by recommending further scientific analyses to be explored utilizing the unique datasets presented.