Due to the space and time constraints of turbulence measurement equipment and test scene, it is difficult to obtain the refractive index structure constant of the atmosphere over the offshore. In this paper, the statistical characteristics of atmospheric optical turbulence over the offshore are summarized by analyzing the meteorological data. Within the reaching height of the sounding ball, most of the wind shear is within 0.016 s-1 from the 1km up to 15 km, and exceed 0.016 s-1 above 15km. Also, the values of temperature gradient are less than 0 km-1 from the ground to 15 km, and more than 0 km1 above 15km. The turbulent energy dissipation rate, potential refractive index gradient and outer scale peaks correspond to the up troposphere with altitudes around 13 km. Moreover, the mean values of coherence length, seeing, isoplanatic angle and coherence time from radiosonde measurement respectively are 4.15cm, 1.82arcsec, 0.24arcsec and 0.84ms over the offshore. The mean measurement result of seeing is generally greater than the night-time value of other observation sites. It is of great significance to research the turbulent characteristics of ocean atmosphere for optical transmission and astronomical observations.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.