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Applied Optics

Applied Optics


  • Vol. 38, Iss. 27 — Sep. 20, 1999
  • pp: 5692–5702

Initial analysis of ocean color data from the ocean color and temperature scanner. II. Geometric and radiometric analysis

Watson W. Gregg, Frederick S. Patt, and Wayne E. Esaias  »View Author Affiliations

Applied Optics, Vol. 38, Issue 27, pp. 5692-5702 (1999)

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We assessed the geometric and radiometric performance of the ocean color and temperature scanner (OCTS) using data acquired over the United States. Initial results indicated a geometric offset in the along-track direction of 4–5 pixels that was attributed to a tilt bias. OCTS radiometric data appeared to suffer from near-field and possibly far-field scatter effects. Analysis of radiometric stability was inconclusive because of daily variability and the absence of a full seasonal cycle. Comparison of OCTS-computed water-leaving radiances with colocated in situ measurements showed that the prelaunch calibration required adjustment from -2% to +13%. Minor modification of OCTS data processing based on these results and avoidance of near-field scatter effects can enable improved and more-reliable OCTS data for quantitative scientific analyses.

© 1999 Optical Society of America

OCIS Codes
(010.4450) Atmospheric and oceanic optics : Oceanic optics
(110.2960) Imaging systems : Image analysis
(110.3000) Imaging systems : Image quality assessment
(280.0280) Remote sensing and sensors : Remote sensing and sensors

Original Manuscript: January 25, 1999
Revised Manuscript: June 16, 1999
Published: September 20, 1999

Watson W. Gregg, Frederick S. Patt, and Wayne E. Esaias, "Initial analysis of ocean color data from the ocean color and temperature scanner. II. Geometric and radiometric analysis," Appl. Opt. 38, 5692-5702 (1999)

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