Optical refraction measurements over sea surface with lidar

Arne Hagard; Rolf Persson; Ove K. S. Gustafsson

doi:10.1117/12.542252

13 September 2004 Optical refraction measurements over sea surface with lidar

Arne Hagard, Rolf Persson, Ove K. S. Gustafsson

Proceedings Volume 5412, Laser Radar Technology and Applications IX; (2004) https://doi.org/10.1117/12.542252
Event: Defense and Security, 2004, Orlando, Florida, United States

Abstract

A method for indirect determination of the refractive index profile in the atmospheric layer just above the sea surface with LIDAR is described. One important application is prediction of performance and particularly the maximum observation range of optical sensors. A lidar is placed near the sea surface and the lobe is scanned in a small vertical sector near the horizon. Returns from particles are recorded. The range to the point, where the laser beam reaches the sea surface, is determined from the lidar returns and stored together with the corresponding elevation angles. This information is compared to results from an optical propagation model to determine the vertical profile of the refractive index, which fits to the lidar results. Test measurements have been performed and results will be presented.

Citation Download Citation

Arne Hagard, Rolf Persson, and Ove K. S. Gustafsson "Optical refraction measurements over sea surface with lidar", Proc. SPIE 5412, Laser Radar Technology and Applications IX, (13 September 2004); https://doi.org/10.1117/12.542252

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

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.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available