Acoustic remote sensing of the atmosphere

The present article is a systematic brief review to acoustic remote sensing of atmosphere.Correspending to the view suggested by the author that atmospheric acoustics can be divided into two categories as'classical'and'modern',the acoustic remote sensing of the atmosphere can also be divided into tWo similar aspects as lower-and upper-atmospheric sensing.The former being based on the scattering of sound waves from'micro-structure'of atmosphere deals with active sensing for audible sound mainly;while the latter being based on the refraction of sound waves through'macro-structure'of the atmosphere deals with passive sensing for infrasound mainly.To both categories,this review outline the principles of technology,the detecting equipment and the major observations respectively.