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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 1 — Jan. 3, 2011
  • pp: 185–192

Estimation of broadband surface emissivity from narrowband emissivities

Bo-Hui Tang, Hua Wu, Chuanrong Li, and Zhao-Liang Li  »View Author Affiliations

Optics Express, Vol. 19, Issue 1, pp. 185-192 (2011)

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This work analyzed and addressed the estimate of the broadband emissivities for the spectral domains 3-14μm ( ε 3 14 ) and 3-∞μm ( ε 3 ). Two linear narrow-to-broadband conversion models were proposed to estimate broadband emissivities ε 3 14 and ε 3 using the Moderate Resolution Imaging Spectroradiometer (MODIS) derived emissivities in three thermal infrared channels 29 (8.4-8.7μm), 31 (10.78-11.28μm) and 32 (11.77-12.27μm). Two independent spectral libraries, the Advanced Spaceborne Thermal Emission Reflection Radiometer (ASTER) spectral library and the MODIS UCSB (University of California, Santa Barbara) emissivity library, were used to calibrate and validate the proposed models. Comparisons of the estimated broadband emissivities using the proposed models and the calculated values from the spectral libraries, showed that the proposed method of estimation of broadband emissivity has potential accuracy and the Root Mean Square Error (RMSE) between estimated and calculated broadband emissivities is less than 0.01 for both ε 3 14 and ε 3 .

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OCIS Codes
(070.4790) Fourier optics and signal processing : Spectrum analysis
(120.3940) Instrumentation, measurement, and metrology : Metrology
(280.0280) Remote sensing and sensors : Remote sensing and sensors
(350.6980) Other areas of optics : Transforms
(280.4991) Remote sensing and sensors : Passive remote sensing
(290.6815) Scattering : Thermal emission

ToC Category:
Remote Sensing

Original Manuscript: October 18, 2010
Revised Manuscript: November 18, 2010
Manuscript Accepted: December 7, 2010
Published: December 22, 2010

Bo-Hui Tang, Hua Wu, Chuanrong Li, and Zhao-Liang Li, "Estimation of broadband surface emissivity from narrowband emissivities," Opt. Express 19, 185-192 (2011)

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