摘要: I review the literature on observational aspects of waves in solar chromosphere first part this contribution. High-frequency are invoked to build elaborate cool-star heating theories but have not been detected decisively so far, neither as magnetic modes network elements nor acoustic below- the-canopy internetwork regions. Three-minute upward-propagating shocks thoroughly established through numerical simulation cause intermittent bright grains, their pistoning and role low-chromosphere energy budget remain debate. wave interaction with canopies is a newer interest, presently progressing simulation. umbral flashes running penumbral seem similar acoustic-shock phenomenon awaiting The low-frequency Doppler modulation remains enigmatic.