Observations of coronal holes with the Siberian radio heliographer of Altyntsev et al. – European astronomer radio community
Coronal holes (CH) are reduced brightness regions in solar disk images in extreme ultraviolet (EUV) or soft x -ray emissions corresponding to configurations with open magnetic field lines. Data on their area and depth depth depression are used in solar wind parameter forecasts near Earth. Regular two-dimensional observations of microwave with a 10-20 spatial resolution“…