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Parameterization of Multiple Scattering Item Based on the Gordon Model(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2009年04期
Page:
127-133
Research Field:
Publishing date:

Info

Title:
Parameterization of Multiple Scattering Item Based on the Gordon Model
Author(s):
Huang Changchun; Li Yunmei; Wang Qiao; Sun Deyong; Le Chengfeng; Jin Xin; Wang Yanfei
Key Laboratory of Virtual Geographic Environment,Nanjing Normal University,Ministry of Education,Nanjing 210046,China
Keywords:
m ultip le scattering;  the irrad iance reflec tance under wa ter surface;  H ydro light sim ulation
PACS:
P341
DOI:
-
Abstract:
Using the optica l simu lation softw areH ydro light, this paper sim ulates the spec ific va lue g between the irrad-i ance reflectance under w ater sur face and the bb /( a + bb ) w ith d ifferen t scatte ring coe fficien ts, w ind speeds and so lar zenith ang le in h igh sca tter ing w ater body. U tilizing theGordon linea r equation and quadratic equation to fit the va lue g, th is pape r analyses the scattering coeffic ients, w ind speeds and so lar zen ith ang le a ffect on the param eter o f fit equa tion and the item o fm ultip le scatter ing expressed byGo rdon. s linear equation and quadra tic equation. Compared to theGo rdon linear equa tion, the resu lt o f analyses indicate that not on ly the range o f a ffection tha t thew ind speeds and solar zenith ang le on the quadra tic equa tion. s param e ter ism uch narrow, but also the expression o f the item o fm ultip le sca tter ing by quadra tic equation is m uch mo re cons istent to the fac t condition and the resu lt by fo re runner. s research. A cco rdingly, consider ing the item of mu ltip le scatter ing in the h igh sca tter ing character isticw ater body in the in land lake, w e f-i na lly estab lish the im proved re lationship be tw een theR ( 0- ) and bb / ( a + bb ), and perfect express equation of va lue g. U sing the simu la te data to test the equation, the range o f erro r is - 41015 8% ~ 41498 1%, and it show s that th is m ode l can be applied to ca lculate theR ( 0- ) exactly o r inverse the inhe rent optica l property from the R ( 0- ) nicety, so the m odel has a good prospect in study on w ater co lo r remo te sensing in lake.

References:

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Last Update: 2013-04-23