Appendix B: A practical model for the calculation of multiply scattered lidar returns

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Lidar results are typically analyzed using an equation which assumes all photons contributing to the return have been singly scattered. Lidar pulses returned from clouds often encounter large optical depths within a short distance of the cloud boundary and many of the received photons are likely to result from multiple scattering. This paper presents an equation to predict the multiply scattered return. The equation is easy to solve on a small computer and allows specification of the scattering cross section and the scattering phase function as a function of penetration depth into the cloud. Atmospheric clouds are made of particles ... continued below

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6 p.

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Eloranta, E. W. December 1993.

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Lidar results are typically analyzed using an equation which assumes all photons contributing to the return have been singly scattered. Lidar pulses returned from clouds often encounter large optical depths within a short distance of the cloud boundary and many of the received photons are likely to result from multiple scattering. This paper presents an equation to predict the multiply scattered return. The equation is easy to solve on a small computer and allows specification of the scattering cross section and the scattering phase function as a function of penetration depth into the cloud. Atmospheric clouds are made of particles which are large compared to the wavelength of visible and near infrared lidars. Optical absorption by particles is typically negligible at these wavelengths. The solution derived in this paper applies to these conditions. The derivation is an approximation which considers only the contribution due to multiple small angle forward scatterings coupled with one large angle scattering which directs the photon back towards the receiver.

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6 p.

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OSTI as DE95013015

Medium: P; Size: 6 p.

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  • Optical Society of America meeting on optical remote sensing of the atmosphere, Salt Lake City, UT (United States), 8-12 Mar 1993

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  • Other: DE95013015
  • Report No.: CONF-930346--7
  • Grant Number: FG02-90ER61058
  • Office of Scientific & Technical Information Report Number: 76378
  • Archival Resource Key: ark:/67531/metadc720786

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  • December 1993

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  • Sept. 29, 2015, 5:31 a.m.

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  • Jan. 31, 2018, 4:19 p.m.

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Eloranta, E. W. Appendix B: A practical model for the calculation of multiply scattered lidar returns, article, December 1993; Madison, Wisconsin. (digital.library.unt.edu/ark:/67531/metadc720786/: accessed December 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.