Authors: Jenny M Rodríguez-Gómez (The Catholic University of America and NASA Goddard Space Flight Center), Laura Balmaceda (George Mason University), Alison Farrish (George Mason University) and Nick Arge (NASA Goddard Space Flight Center)

Solar Spectral Irradiance (SSI) time series are important to study the dynamics of the Ionospheric-Thermospheric-Mesospheric (ITM) system. The Coronal Density and Temperature (CODET) model, which uses the relationships between photospheric magnetic field, density, temperature, and emission, provides the SSI time series in EUV wavelengths. A new version of the CODET model, namely CODET A-W, is presented. This new version uses the Air Force Data Assimilative Photospheric Flux Transport (ADAPT) magnetic flux transport model and the extrapolated coronal magnetic field from the Wang-Sheeley-Arge (WSA) model. Different ADAPT maps versions and magnetic field input data were used in this analysis, e.g., ADAPT-HMI versions 1.0607 and 4.3.0 and ADAPT-GONG versions 3.1106 and 4.4.4. We evaluate the impact of different ADAPT flux transport model versions on the coronal magnetic field extrapolation (WSA) and the Solar Spectral Irradiance modeling.