| 摘要: |
| 在实验室对青岛近岸现场水样进行处理、分析,获得了原始状态下水样和被过滤(0.22μm,0.45μm)黄色物质水样的吸收光谱数据,除进一步验证了黄色物质光谱分布模式外,还测得黄色物质光吸收随滤膜孔径的变化。30个现场样品在波长380nm处吸收系数统计平均值Ay(380)分析表明,当使用0.45μm过滤器对水样进行处理,所获得的Ay(380)值要比未经过处理的现场水样所测得的Ay(380)值高约2.1%;而用0.22μm过滤器对现场水样进行处理,所获得的Ay(380)值要比未经过处理的现场样品所测得的Ay(380)值高约12.6%,要比用0.45μm过滤器处理的现场样品所测得的Ay(380)值高约10.3%,这些数据的获得为现有已获黄色物质数据的"归一化"和统一评判以及未来黄色物质测量数据的准确性判断与比较提供了参考。 |
| 关键词: 过滤 黄色物质 吸光光谱 特征分析 |
| DOI：10.11693/hyhz200806007 |
| 分类号: |
| 基金项目:国家自然科学基金资助项目,60578060号;国家“863”高技术计划资助项目,863A636010号 |
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| CHARACTERISTICS OF YELLOW SUBSTANCE ABSORPTION SPECTRUM IN QINGDAO |
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WU Yong-Sen1, WU Shao-Yuan2, WEI Ran3, ZHANG Yao-Li3
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1.First Institute of Oceanography, State Oceanic Administration, Qingdao, 266061;2.State Key Lab of Estuarine and Coastal Research, East China Normal University, Shanghai, 200062;3.The Marine Life College, The Ocean University of China, Qingdao, 266003
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| Abstract: |
| The absorption spectrum distribution of yellow substance were in-situ analyzed for 30 seawater samples taken in Qingdao coastal area that filtered by 0.22 and 0.45μm sieves. The result shows that the absorption coefficients vary with the sieve size. In terms of Ay(380) value, i.e. the mean value of absorption coefficients at 380nm wavelength of sample, it was 2.1% higher for 0.45μm filtration than the control (un-filtrated); and for that of 0.22μm filtration, it was 12.6% and 10.3% higher than that of the control and 0.45μm one, respectively. Therefore, the filtration at 0.22μm outstood better for yellow substance recognition. The achieved result shall be referential to current data normalization and data acquisition criterion. |
| Key words: Filter treatment, Yellow substance, Absorption spectrum, Characteristic analysis |
