Authors: Alin Razvan Paraschiv (NSO)

With the commissioning of new generation instrumentation and the recent advances in understanding the theoretical aspects of solar coronal polarization, new science interpretation and inversion of polarized infrared observations from the ground, like COMP/uCoMP, DKIST Cryo-NIRSP and DL-NIRSP but not only, is highly required at this time.

Currently, it is still challenging to measure full Stokes polarization of forbidden lines formed in the solar corona. We showcase a novel inversion method that separates the problem of inferring coronal vector magnetic fields into two parts: i. Utilizing Stokes IQU observations to disentangling the magnetic field orientation; ii. Estimate the magnetic field strength via magnetically-induced Doppler plasma oscillations. Thus, a realization of the vector magnetic fields can be inferred without the formal need of including Stokes V circular polarization observations.

We present this method and describe the upgrades to the open-source CLEDB code package that can be used for inferring the geometrical, thermal and vector magnetic information of coronal features. This approach can be currently applied to observations of intensity and linear polarization, of at least two coronal lines, like the Fe XIII 1074.68 nm and 1079.79 nm infrared pair.