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光透射—光反射方法获取光程放大校正因子的键技术研究
引用本文:朱建华,周虹丽,韩冰,李铜基.光透射—光反射方法获取光程放大校正因子的键技术研究[J].海洋学报,2011,33(4):104-110.
作者姓名:朱建华  周虹丽  韩冰  李铜基
作者单位:国家海洋技术中心,天津 300112
基金项目:国家自然科学基金(40606039)。
摘    要:光透射—光反射测量方法(T-R方法)是测量悬浮颗粒物吸收系数的主要方法之一,其中GF/F滤纸水合程度以及光程放大校正因子模型是其关键问题.GF/F滤纸水合程度对光学性质的影响实验分析结果表明,浸泡60~80 min的滤纸,其透射比、反射比和反射率误差最小,其值分别为3.0%,0.5%和0.5%.在此基础上,以小球藻为研...

关 键 词:T-R方法  光程放大校正因子  悬浮颗粒物  二次多项式
收稿时间:2009/8/27 0:00:00

A study on a path-length amplification correction factor by a transmittance-reflectance method
ZHU Jian-hu,ZHOU Hong-li,HAN Bin and LI Tong-ji.A study on a path-length amplification correction factor by a transmittance-reflectance method[J].Acta Oceanologica Sinica (in Chinese),2011,33(4):104-110.
Authors:ZHU Jian-hu  ZHOU Hong-li  HAN Bin and LI Tong-ji
Affiliation:National Ocean Technology Center,Tianjin 300112, China
Abstract:A transmittance-reflectance(T-R)method is one of the most important methods to measure the absorption coefficient of suspended particulate matter. The GF/F filter paper's hydration degree and the path-length amplification correction factor model play the key roles in the T-R method. The effect of the hydration degree of the GF/F filter paper on the optical properties was experimentally analyzed. The results show that the error of transmittance ratio, reflectances ratio and reflectance of the filter paper which is soaked 60~80 min, is the minimum, and their values are 3.0%, 0.5% and 0.5%. On this basis chlorella were used as a research object, the path-length amplification correction factor model of the T-R method was studied. The results show that a polynomial regression model is superior to a linear regression model and a power regression model; and a quadratic polynomial model is selected as the path-length amplification correction factor model of the T-R method. The regression interval is , and the average relative error is 9.19%.
Keywords:transmittance-reflectance method  path-length amplification correction factor  suspended particulate matter  quadratic polynomial
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