The power spectrum of the seeing during solar observations
  Measurements of the power spectrum of the atmospheric seeing in the line of sight of the Sun, in the range 0.001-1 Hz, have been performed in Santa Maria degli Angeli Lucernaria Dome, at IRSOL and in Huairou Station. This study is aimed to understand the criticity of the meridian transits method for solar diameter monitoring. 
Costantino Sigismondi, Andrea Raponi, Xiaofan Wang, Giulia De Rosi,   Michele Bianda and Renzo Ramelli
astro-ph.SR physics.ao-ph