On the penetration of Alfven waves from the chromosphere into the corona

Within the framework of the two-layer model the expression for the reflection coefficients of Alfven (torsion) waves propagated from the chromosphere into the corona have been obtained. As a result of reflection the energetic losses of waves with a period less than several tens of seconds are about 70%. This shows evidence in favor of the essential contribution of Alfven waves with a period of 10-40 s to coronal heating of the Sun.