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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 2, Iss. 5 — May. 17, 2007

Simultaneous determination of aerosol optical thickness and exponent of Junge power law from satellite measurements of two near-infrared bands over the ocean

Qingshan Xu, Heli Wei, Ruizhong Rao, and Huanling Hu  »View Author Affiliations


Optics Express, Vol. 15, Issue 8, pp. 5227-5236 (2007)
http://dx.doi.org/10.1364/OE.15.005227


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Abstract

An iterative algorithm is presented in this study for simultaneous determination of both the aerosol optical thickness and the exponent of the Junge power law from the total reflectance data of two satellite-based, near-infrared bands over the ocean. The atmospheric aerosol model is assumed as the Junge power-law size distribution in retrieval of the data. Numerical simulations show that relative errors in retrieval of the aerosol optical thickness and the exponent of the Junge power law are less than 5% when the actual atmospheric aerosol follows the Junge power-law size distribution. For other aerosol size distributions, relative errors of the aerosol optical thickness are less than approximately 10%. The proposed method is applied to a case study of the data of two near-infrared channels of the Sea-Viewing Wide Field-of-View Sensor (SeaWiFS) over the East China Sea area. The results show that reasonable spatial distribution of the exponent of the Junge law and the aerosol optical thickness may be obtained on a pixel-by-pixel basis through use of the proposed retrieval algorithm.

© 2007 Optical Society of America

OCIS Codes
(010.0010) Atmospheric and oceanic optics : Atmospheric and oceanic optics
(010.1110) Atmospheric and oceanic optics : Aerosols
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(280.1100) Remote sensing and sensors : Aerosol detection

ToC Category:
Atmospheric and ocean optics

History
Original Manuscript: September 22, 2006
Revised Manuscript: January 16, 2007
Manuscript Accepted: March 8, 2007
Published: April 13, 2007

Virtual Issues
Vol. 2, Iss. 5 Virtual Journal for Biomedical Optics

Citation
Qingshan Xu, Heli Wei, Ruizhong Rao, and Huanling Hu, "Simultaneous determination of aerosol optical thickness and exponent of Junge power law from satellite measurements of two near-infrared bands over the ocean," Opt. Express 15, 5227-5236 (2007)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=oe-15-8-5227


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