Title :
Airborne scanning lidar and video measurements of coastal waves
Author :
Hwang, Paul A. ; Krabill, William B. ; Wright, Wayne ; Swift, Robert N. ; Walsh, Edward J.
Author_Institution :
Oceanogr. Div., Naval Res. Lab., Stennis, MS, USA
Abstract :
A scanning lidar system provides high-resolution two-dimensional measurements of the ocean wave displacement. The airborne operation further enhances the speed of data acquisition. These properties offer a capability for rapid characterization of the ocean wave environment. In addition to the active ranging, the scanning optics can obtain passive measurements of the surface emissivity. This yields a digital image of the surface brightness “on the fly”. Processed into a binary image, the measurements can provide the statistical properties of the spatial distribution of breaking waves. Technical specifications of the system and examples of applications are presented
Keywords :
ocean waves; oceanographic equipment; optical radar; remote sensing by laser beam; video equipment; ATM; airborne operation; airborne scanning lidar system; airborne topographic mapper; applications; breaking waves; coastal waves; data acquisition speed; digital images; high-resolution 2D measurements; ocean wave displacement; ocean wave environment; passive measurements; scanning optics; spatial distribution; statistical properties; surface brightness; surface emissivity; technical specifications; video measurements; Aircraft; Global Positioning System; Laser radar; Ocean waves; Optical surface waves; Sea measurements; Sea surface; Surface emitting lasers; Surface topography; Surface waves;
Conference_Titel :
Geoscience and Remote Sensing Symposium Proceedings, 1998. IGARSS '98. 1998 IEEE International
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-4403-0
DOI :
10.1109/IGARSS.1998.702849
