Reconstruction of coronal magnetic fields by different models. Left: coronal magnetic field as reconstructed by the PFSS and SCS in EUHFORIA with a GONG ADAPT magnetogram on 2018-05-05T00:00. The red and blue colors indicate the opposite magnetic field polarity between the two solar hemispheres. The inner gray sphere depicts the solar photosphere, while the outer transparent sphere represents the radius of 2.3 R_⊙, beyond which the SCS starts taking place. Right: coronal magnetic field as reconstructed by MULTI-VP using the same magnetogram. The green and red colors on the solar surface represent the polarity of the magnetic field, while the gray area represents the boundary between closed and open field lines.