| 光谱学与光谱分析 |
|
|
|
|
|
| Spectral Modeling of Marine Suspended Particulate Matter: Comparison between ADA and Mie Computations |
| CUI Ting-wei1, ZHANG Jie1, 2, MA Yi1, 2 |
1. First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China
2. Key Lab of Marine Science and Numerical Modeling, State Oceanic Administration, Qingdao 266061, China |
|
|
|
|
Abstract The present paper aimed at exploring the feasibility of modeling optical properties of marine suspended particulate matter (SPM) with anomalous diffraction approximation (ADA) method, which had advantage of computation speed over the classic Mie theory. Based on the marine SPM characteristics of refractive index and particle size, attenuation efficiency Qc, absorption efficiency Qa and scattering efficiency Qb of SPM were computed by ADA and Mie to analyze their relative error Δc, Δa, Δb and the variations. The variations of Δc, Δa, Δb with the particle size, real and imaginary part of refractive index were different and complex. The minimum particle size Rmin, with which ADA can be used to give computation results with enough accuracy (relative difference less than 5%), was determined and shown to be influenced by the refractive index and wavelength. Classic Mie method, rather than ADA method, was recommended for the spectral modeling of ocean suspended particulate matter.
|
|
Received: 2010-02-18
Accepted: 2010-05-22
|
|
|
|
Corresponding Authors:
CUI Ting-wei
E-mail: cuitingwei@fio.org.cn;cokkie_cui@163.com
|
|
[1] Stramski D, Bricaud A, Morel A. Applied Optics, 2001, 40(18): 2929.
[2] Wozniak B S, Stramski D. Applied Optics, 2004, 43(17): 3489.
[3] Stramski D, Boss E, Bogucki D. Progress in Oceanography, 2004, 61: 27.
[4] Bohren C F, Huffman D R. Absorption and Scattering of Light by Small Particles. New York: John Wiley & Sons, Inc., 1998. 83.
[5] YANG Ye, ZHANG Zhen-xi, YANG Xin-hui(杨 晔, 张镇西, 杨新慧). Applied Optics(应用光学)，1997, 18(6): 12.
[6] Mishchenko M I, Travis L D, Lacis A A. Scattering, Absorption, and Emission of Light by Small Particles. Cambridge: Cambridge University Press, 2002. 210.
|
| [1] |
WANG Xiao, LIU Mu-hua, XU Jiang*. Study on Spectral Detection System of Emulsified Oil Based on the Degree of Dispersion Polarization[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(09): 2689-2693. |
| [2] |
WANG Jie1, 2, 3, LIU Wen-qing1, 2, ZHANG Tian-shu1*, WAN Xue-ping3, GAO Jie3, LI Ling3, MA Na3. Mapping for Horizontal Aerosol Density Field by a Portable Dual-FOV Lidar[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(09): 2664-2669. |
|
|
|
|
