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Applied Optics

Applied Optics


  • Vol. 40, Iss. 33 — Nov. 20, 2001
  • pp: 5985–5990

Polarimetric measurements of long-wave infrared spectral radiance from water

Joseph A. Shaw  »View Author Affiliations

Applied Optics, Vol. 40, Issue 33, pp. 5985-5990 (2001)

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Polarimetric measurements of the thermal infrared spectral radiance from water are reported and are compared with calculations from a recently published model over the spectral range of 600–1600 cm-1 (6.25–16.67-µm wavelength). In this spectral range, warm water viewed under a dry, clear atmosphere appears vertically polarized by 6–12%. The measured spectral degree of polarization agrees with calculations within the measurement uncertainty (∼0.5% polarization in spectral regions with high atmospheric transmittance and 1.5% polarization in spectral regions with low atmospheric transmittance). Uncertainty also arises from temporal changes in water and air temperatures between measurements at orthogonal polarization states, indicating the desirability of simultaneous measurements for both polarization states.

© 2001 Optical Society of America

OCIS Codes
(010.0010) Atmospheric and oceanic optics : Atmospheric and oceanic optics
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(120.5410) Instrumentation, measurement, and metrology : Polarimetry
(120.5630) Instrumentation, measurement, and metrology : Radiometry

Original Manuscript: December 7, 2000
Revised Manuscript: July 5, 2001
Published: November 20, 2001

Joseph A. Shaw, "Polarimetric measurements of long-wave infrared spectral radiance from water," Appl. Opt. 40, 5985-5990 (2001)

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  1. J. A. Shaw, “Degree of linear polarization in spectral radiances from water-viewing infrared radiometers,” Appl. Opt. 38, 3157–3165 (1999). [CrossRef]
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