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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 5 — Mar. 2, 2009
  • pp: 3173–3182

Estimation of land surface directional emissivity in mid-infrared channel around 4.0 μm from MODIS data

Bo-Hui Tang, Zhao-Liang Li, and Yuyun Bi  »View Author Affiliations


Optics Express, Vol. 17, Issue 5, pp. 3173-3182 (2009)
http://dx.doi.org/10.1364/OE.17.003173


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Abstract

This work addressed the estimate of the directional emissivity in the mid-infrared (MIR) channel around 4.0 μm from MODIS data. A series of bidirectional reflectances in MODIS channel 22 (3.97 μm) were retrieved using the method developed by Tang and Li (Int. J. Remote Sens. 29, 4907, 2008) and then were used to estimate the directional emissivity in this channel with the aid of the BRDF model modified by Jiang and Li (Opt. Express 16, 19310, 2008). To validate the estimated directional emissivity, a cross-comparison of MODIS derived emissivities in channel 22 using the proposed method were performed with those provided by the MODIS land surface temperature/emissivity product MYD11B1 data. The results show that the proposed method for estimating the directional emissivity in MIR channel gives results comparable to those of MYD11B1 product with a Mean Error of -0.007 and a Root Mean Square Error of 0.024.

© 2009 Optical Society of America

OCIS Codes
(100.3190) Image processing : Inverse problems
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.5630) Instrumentation, measurement, and metrology : Radiometry
(280.0280) Remote sensing and sensors : Remote sensing and sensors
(280.4991) Remote sensing and sensors : Passive remote sensing

ToC Category:
Remote Sensing and Sensors

History
Original Manuscript: November 19, 2008
Revised Manuscript: January 16, 2009
Manuscript Accepted: January 21, 2009
Published: February 17, 2009

Citation
Bo-Hui Tang, Zhao-Liang Li, and Yuyun Bi, "Estimation of land surface directional emissivity in mid-infrared channel around 4.0 µm from MODIS data," Opt. Express 17, 3173-3182 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-5-3173


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References

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