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We propose a method for diagnosing the physical conditions in the solaratmosphere using an increase in oscillation amplitudes resulting from minusculesolar flares. As an example, we consider a B2 flare, which caused a sharpshort-lived increase in the amplitude of three- and five-minute oscillations inthe lower layers of the solar atmosphere. Enhanced three- and five-minuteoscillations propagated from the lower layers of the atmosphere into thecorona. Such short oscillation trains made it possible to remove theuncertainties arising in the measurements of the phase and group lags betweenthe layers. In addition, the amplification of the oscillations that reach thecorona may add to the likelihood of a repeated flare. Studying oscillations insmall flare events has the advantage of exploring the atmosphere in itsquasi-quiet condition as opposed to powerful flares, which cause substantialand prolonged disturbance of the environment. In addition, small flares aremuch more common than powerful flares, which allows one to choose from a largersample of observational material.

Using Flare-Induced Modulation of Three- and Five-Minute Oscillations for Studying Wave Propagation in the Solar Atmosphere