| Study on Optical Properties of Unpigmented Suspended Particles,Yellow Substance and Phytoplankton Algae in Taihu Lake |
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| 作者姓名： | 俞宏 蔡启铭 吴敬禄 |
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| 作者单位： | [1]DepartmentofAtmosphericProbingEngi~ering,InstituteofMeteorology,PIMUniversityofScienceandTechnology,Nanjing211101,China [2]NanjingInstituteofGeographyandLimnology,ChineseAcademyofSciences,Nanjing210008,China |
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| 基金项目： | SupportedbyJiangsuProvince“3 3 3Project” :StudyonOxygenIsotopicSpatiotemporalDistributionandWaterEnvironmentFeaturesofTaihuLakeWaters，alsobytheNSFC (No .40 0 710 19) |
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| 摘 要： | The optical properties of a waterbody are subjects of research on limnological hydrooptics. The optical properties of, and parameterization methods for, three impurities in Taihu Lake, namely unpigmented suspensions, yellow substance and phytoplankton algae, are analyzed in detail in this paper dealing with the optical types of Taihu Lake waters both in winter and in summer. The results showed that : 1 ) The optical parameters of suspended particles can be calculated by the application of Mie Theory; 2) The absorption of yellow substance decreases exponentially with increasing wavelength, with the mean value of decreasing rate being about 0.014 nm^-1 ; 3) Taihu Lake waters appeared to be of type PY in winter, with suspended particles and yellow substance being the dominant light absorbers, and type CPY in summer, with suspended particles, yellow substance and phytoplankton algae being the dominant light absorbers; 4) In winter or summer, unpigmented suspension has the main effect on the scattering property of Taihu Lake waters.
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| 关 键 词： | 湖藻学 水域光学 浮游植物 太湖 |
| 收稿时间： | 15 December 2001 |
| 修稿时间： | 15 January 2002 |
Study on optical properties of unpigmented suspended particles,yellow substance and phytoplankton algae in Taihu Lake |
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| Yu?Hong,Cai?Qiming,Wu?Jinglu.Study on Optical Properties of Unpigmented Suspended Particles,Yellow Substance and Phytoplankton Algae in Taihu Lake[J].Chinese Journal of Oceanology and Limnology,2004,22(1):24-33. |
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| Authors: | Yu Hong Cai Qiming Wu Jinglu |
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| Institution: | (1) Department of Atmospheric Probing Engineering, Institute of Meteorology, PIA University of Science and Technology, 211101 Nanjing, China;(2) Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 210008 Nanjing, China;(3) Graduate School, Chinese Academy of Sciences, 100039 Beijing, China |
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| Abstract: | The optical properties of a waterbody are subjects of research on limnological hydrooptics. The optical properties of, and parameterization methods for, three impurities in Taihu Lake, namely unpigmented suspensions, yellow substance and phytoplankton algae, are analyzed in detail in this paper dealing with the optical types of Taihu Lake waters both in winter and in summer. The results showed that: 1) The optical parameters of suspended particles can be calculated by the application of Mie Theory; 2) The absorption of yellow substance decreases exponentially with increasing wavelength, with the mean value of decreasing rate being about 0.014 nm -1; 3) Taihu Lake waters appeared to be of type PY in winter, with suspended particles and yellow substance being the dominant light absorbers, and type CPY in summer, with suspended particles, yellow substance and phytoplankton algae being the dominant light absorbers; 4) In winter or summer, unpigmented suspension has the main effect on the scattering property of Taihu Lake waters. |
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| Keywords: | Taihu Lake unpigmented suspended particles yellow substance phytoplankton algae hydrooptics |
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