A plethora of coronal models. from empirical to more complex magnetohydrodynamic (MHD) ones. are being used for reconstructing the coronal magnetic field topology and estimating the open magnetic flux. However. https://www.chiggate.com/turbo-air-m3f72-3-n-78-wide-m3-series-reach-in-freezer-featuring-three-solid-doors-energy-star-online-now/