ERMOLLI, IlariaIlariaERMOLLIMURABITO, MARIARITAMARIARITAMURABITOSTANGALINI, MARCOMARCOSTANGALINIGIORGI, FabrizioFabrizioGIORGI2021-02-172021-02-1720192037-4909http://hdl.handle.net/20.500.12386/30421We aim at contributing to the refinement of the atmosphere models employed in solar irradiance reconstructions by deriving observation-based atmospheres from spectropolarimetric measurements of the solar atmosphere. Here we present results obtained from analysis of photospheric and chromospheric observations of quiet Sun, umbral, and penumbral regions, performed on May 20th 2016 with the IBIS Interferometric Bidimensional Spectrometer under excellent seeing conditions.STAMPAenArticle10.1393/ncc/i2019-19004-32-s2.0-85066159052000470259000002https://www.sif.it/riviste/sif/ncc/econtents/2019/042/01/article/32019NCimC..42....4EFIS/05 - ASTRONOMIA E ASTROFISICA