Suspended Particulate Matter (spm) Concentrations Inversion from Remote Sensing Data Based on Analytic Model
نویسندگان
چکیده
Suspended particle matter (SPM) includes phytoplankton and non-coloring Suspended particle matter. Its concentrations, size, distribution is very complex, and so it has not strict theory to describe the matter character. The method of using remote sensing technology to monitor water quality by obtaining the suspended particulate matter (SPM) concentration was studied in this paper, and the inversion of SPM from remote sensing image was respectively introduced based on an analytic model and empirical model. The analytic model mainly focus on the problems above, making use of equivalent sphere Mie scattering theory, and the paper analyzes the scattering characteristics of water suspended particles. At first, we promote a formula to calculate scattering coefficient of suspended particles using scattering efficiency factor. This will solve the inaccuracy problems to calculate the scattering efficiency of phytoplankton and non-algal particles, and it can analyze the characteristics of scattering coefficient effectively. Then, the formulas of back scattering efficiency of phytoplankton and non-algal particles will be deduced using scattering phase function. These can accurately calculate the back scattering efficiency of suspended particles, and analyze the characteristics of back scattering coefficient effectively. The empirical two-band ocean color remote sensing reflectance algorithm
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