Upper atmospheric wind monitoring using correlation of speckle patterns

Shin Oya; Masao Takabe; Tadashi Aruga

doi:10.1117/12.416975

21 February 2001 Upper atmospheric wind monitoring using correlation of speckle patterns

Shin Oya, Masao Takabe, Tadashi Aruga

Proceedings Volume 4150, Optical Remote Sensing of the Atmosphere and Clouds II; (2001) https://doi.org/10.1117/12.416975
Event: Second International Asia-Pacific Symposium on Remote Sensing of the Atmosphere, Environment, and Space, 2000, Sendai, Japan

Abstract

Observation of stellar speckle-patterns is a useful optical remote-sensing technique of terrestrial atmospheric turbulence. The wind velocity (magnitude and direction) at the turbulence layer is determined by movement of the speckle patterns. The altitude and refractive index structure constant of the turbulence layer are also deduced from the peak height and width of speckle-pattern correlation-peak. A new simple system, which consists of an image intensified CCD and a photomultiplier tube attached on a 50 cm telescope, has been developed for observing the speckle-patterns. The system is utilized to continuously monitor the parameters of atmospheric turbulence ranging from 2 km to 20 km. Results of the monitoring measurement over a year are presented.

Citation Download Citation

Shin Oya, Masao Takabe, and Tadashi Aruga "Upper atmospheric wind monitoring using correlation of speckle patterns", Proc. SPIE 4150, Optical Remote Sensing of the Atmosphere and Clouds II, (21 February 2001); https://doi.org/10.1117/12.416975

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