ИСТИНА

The areas of coronal holes (CH) obtained from various wavelengths 211, 193 and 171Å from SDO/AIA and 174Å PROBA2/SWAP, have good correspondence with each other. Usually such correspondence is observed for CH that are sources of recurrent high speed solar wind streams with velocity values more 600 km/s. However, disagreements between CH areas calculated in the mentioned spectral ranges are also observed. It was found that the differences in some cases can be significant. Sometimes these CHs are those associated with solar wind flow with lower velocity. In this study, analysis of the parameters of CHs, calculated from images obtained in various spectral bands provided by AIA instrument on board of Solar Dynamic Observatory, has been performed. The information about photospheric magnetic field obtained from SDO/HMI was taken into account. The relationships between coronal holes parameters obtained in various spectral bands and the recurrent solar wind streams parameters during rising phase solar cycle 24, were studied.