An Analysis of the Variation Features and Influential Factors of the Remote Sensing Reflectance of the Taihu Lake
QIAN Hao-zhong1, ZHAO Qiao-hua2, HE Jin-hai1, SUN De-yong2, JIANG Yu-wei2, TAO Rong-yin2
1. College of Atmosphere Science, Nanjing University of Information Science and Technology, Nanjing 210044, China;
2. College of Remote Sensing, Nanjing University of Information Science and Technology, Nanjing 210044, China
The spectral data and numerical analyses of the Taihu Lake during the period of October 4-8, 2010 were used to analyze the influence of solar zenith θ, the ratio of scattering and absorption coefficient b/a and parameter Q upon the variation of remote sensing reflectance. According to the results, remote sensing reflectance increases with solar zenith θ, while θ changes in the range of 0°~20° or 80°~89°, which has little influence on the growth of remote sensing reflectance. Remote sensing reflectance increases with the increase of b/a, and there obviously exists a positive relation between them. When Q is large (6~7), its alteration has little effect on the variation of remote sensing reflectance. On the contrary, when Q is small (2~3), its variation has enormous impact on the growth of remote sensing reflectance. Remote sensing reflectance tends to decrease with the growth of Q.
钱昊钟, 赵巧华, 何金海, 孙德勇, 姜雨薇, 陶蓉茵. 太湖遥感反射率变化特征及其影响因素分析[J]. 国土资源遥感, 2011, 23(4): 100-107.
QIAN Hao-zhong, ZHAO Qiao-hua, HE Jin-hai, SUN De-yong, JIANG Yu-wei, TAO Rong-yin. An Analysis of the Variation Features and Influential Factors of the Remote Sensing Reflectance of the Taihu Lake. REMOTE SENSING FOR LAND & RESOURCES, 2011, 23(4): 100-107.
[1] 黄昌春,李云梅,王桥,等.水-气界面参数和二向性影响因素交互作用研究［J］.光学学报,2010,30(3):625-632.[2] Gordon H R,Brown O B,Jacobs M M.Computed Relationships Between the Inherent and Apparent Optical Properties of a Flat Homogeneous Ocean［J］.Applied Optics,1975,14(2):417-427.[3] Morel A,Gentili B.Diffuse Reflectance of Oceanic Waters II, Bi-directional Aspects［J］.Applied Optics,1993,32(32):6864- 6879.[4] 黄昌春,李云梅,孙德勇,等.Q值的影响因素分析及其参数化［J］.光学学报,2009,29(8):2060-2066.[5] 李军,刘丛强,王仕禄,等.太湖水体溶解营养盐(N、P、Si)的冬、夏二季变化特征及其与富营养化的关系［J］.地球与环境,2005,33(1):63-67.[6] 高锡云,陈宇炜,蔡后建.梅梁湾及大太湖水环境现状与富营养化趋势分析［M］//蔡启铭.太湖环境生态研究(一).北京:气象出版社,1998.[7] 朱广伟.太湖富营养化现状及原因分析［J］.湖泊科学,2008,20(1):21-26.[8] Mitchell B G.Algorithms for Determining the Absorption Coefficient for Aquatic Particulates Using the Quantitative Filter Technique(QFT)［J］.Proceedings of SPIE,1990,1302:137-148.[9] Cleveland J S,Weidemann A D.Quantifying Absorption by Aquatic Particles:A Multiple Scattering Correction for Glass-fiber Filters［J］.Limnology and Oceanography,1993,38(6):1321-1327.[10] Bricaud A,Morel A,Prieur L.Absorption by Dissolved Organic Matter of the Sea (Yellow Substance) in the UV and Visible Domains［J］.Limnology and Oceanography,1981,26(1):43-53.[11] 赵巧华,秦伯强,张运林.太湖梅梁湾水下光场扰动的特征分析［J］.光学学报,2007,27(5):760-765.[12] 唐军武,田国良,汪小勇,等.水体光谱测量与分析I:水面以上测量法［J］.遥感学报,2004,8(1):37-44.[13] 李铜基,唐军武,陈清莲,等.光谱仪测量离水辐射亮度的方法［J］.热带海洋学报,2001,20(4):56-60.[14] 冯伟,冯学智,马荣华.太湖水体叶绿素浓度与反射光谱特征关系的研究［J］.遥感信息,2007(1):18-21.[15] Kirk J T O.Dependence of Relationship Between Inherent and Apparent Optical Properties of Water on Solar Altitude［J］.Limnology and Oceanography,1984,29(2):350-356.[16] Kirk J T O.Light and Photosynthesis in Aquatic Ecosystems［M］.Cambridge:Cambridge University Press,1994:45-58.[17] Hoogenboom H J,Dekker A G,Althuis A.Simulation of AVIRIS Sensitivity for Detecting Chlorophyll Over Coastal and Inland Waters［J］.Remote Sensing of Environment,1998,65(3):333-340.[18] 孙德勇,李云梅,乐成峰,等.应用水表面下辐照度比估测太湖夏季水体叶绿素a浓度［J］.湖泊科学,2007,19(6):744-752.[19] Petzold T J.Volume Scattering Functions for Selected Ocean Waters［M］.San Diego:Scripps Institution of Oceanography Ref,1972:72-78.[20] 李素菊,吴倩,王学军,等.巢湖浮游植物叶绿素含量与反射光谱特征的关系［J］.湖泊科学,2002,14(3):228-234.[21] 李素菊,王学军.巢湖水体悬浮物含量与光谱反射率的关系［J］.城市环境与城市生态,2003,16(6):66-68.[22] 黄嘉佑.气象统计分析与预报方法［M］.北京:气象出版社,2004:36-47.[23] Kirk J T.Estimation of the Scattering Coefficient of Natural Waters Using Underwater Irradiance Measurements［J］.Australian Journal of Marine and Freshwater Reasearch,1981,32(4):533-539.[24] Whitlock C H,Pool L R,Usry J W,et al.Comparison of Reflectance with Backscatter and Absorption Parameters for Turbid Waters［J］.Applied Optics,1981,20(3):517-522.[25] Gons H J.Optical Teledetection of Chlorophyll a in Turbid Inland Waters［J］.Environmental Science and Technology,1999,33(7):1127-1132.
2011, Vol. 23 
