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Proceedings Paper

Measuring the point-spread function of sea ice in situ
Author(s): Jeffrey M. Voss; Richard C. Honey; Gary D. Gilbert; Rodney R. Buntzen
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Paper Abstract

In this paper, we describe an experiment to measure the point spread function (PSF) of Arctic ice that was conducted by personnel of the Naval Ocean Systems Center in 1985. SRI International designed and developed the instrumentation. In April, data were collected on refrozen leads in pack ice concentrated near the Beaufort Gyre. The location was about 200 miles from the North Pole at approximately 86 degrees north and 88 degrees west. PSF measurements were made with a Hasselblad camera and a pulsed Lambertian (cosine) source gated to the camera. Recently, SRI digitized the film data with a charge-coupled device (CCD) camera and performed a digital analysis of the images. Results from two sites of new and first- year ice, 0.66 m and 2.1 m thick, respectively, are presented. Because of the strong multiple scattering by sea ice, and the limited area of the ice surface that could be imaged by the camera, the data obtained only partially characterize the PSF of the ice. The paper concludes with suggestions for improving future sea ice PSF measurements.

Paper Details

Date Published: 31 December 1992
PDF: 10 pages
Proc. SPIE 1750, Ocean Optics XI, (31 December 1992); doi: 10.1117/12.140682
Show Author Affiliations
Jeffrey M. Voss, SRI International (United States)
Richard C. Honey, SRI International (United States)
Gary D. Gilbert, Naval Command, Control and Ocean Surveillance Ctr. (United States)
Rodney R. Buntzen, Naval Command, Control and Ocean Surveillance Ctr. (United States)

Published in SPIE Proceedings Vol. 1750:
Ocean Optics XI
Gary D. Gilbert, Editor(s)

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