海水分光反射率与叶绿素浓度的相关分析  

An Analysis of Correlation Between the Spectral Reflectivity and Chlorophyll Concentration in Seawater

作　　者：傅克忖[1] 曾宪模[1] 

机构地区：[1]国家海洋局第一海洋研究所

出　　处：《黄渤海海洋》1995年第1期55-63,共9页Journal of Oceanography of Huanghai & Bohai Seas

摘　　要：通过对东京湾两年度不同季节海水分光反射率与叶绿素浓度进行统计分析，结果表明，叶绿素浓度Ｃ与两谱段分光反射率之比Ｒｗ（λｊ）／Ｒｗ（λｊ）具有幂函关系Ｃ＝Ａ［Ｒｗ（λｊ）／Ｒｗ（λｊ）Ｂ。两者的对数显示出较好的线性关系，即ｌｏｇＣ＝ｌｏｇＡ＋Ｂｌｏｇ［Ｒｗ（λｊ）／Ｒｗ（λｊ）］。负相关系数达０．９９。相关方程之一为Ｃ＝３．３２９［Ｒｗ（５２０）／Ｒｗ（５５０）］－１．３８４（１９８７年６月初）．在梅雨季节之后，相关方程为Ｃ＝１２．６８［Ｒｗ（５２０）／Ｒｗ（５５０）］－２．０１０（１９８８年８月）。这表明了海湾或混浊的沿岸水质，在叶绿素浓度算法中，统计参数Ａ和Ｂ的确立，要基于不同季节不同水质的现场观测资料。Statistical analysis of the data on spectra refectivity and chlorophyll-. plus phaeopisment concentrations collected in the Tokyo Bay in different seasons of two years was shown in this paper. It can be seen that the correlation beween the chlorophyll a concentration C and the ratio of two spectral reflectivities Rw(λj)/(Rw) (λj) takes the form of power function C=A [Rw (λj)/Rw(λj)]B and a better relationship of linear regression exhibits in their logarithms, i. e., LOG C=LOG A+B. LOG[Rw (λj)/Rw (λj)]. One of the correlation formulae for the waters in the Bay is C= 3. 329 [Rw (520 )/Rw (550)]-1.384 (at the beginning of June 1987)and after the plum rain season C =12. 68 [Rw (520 )/Rw (550 )]-2.01(August. 1988 ). Hence. it is suggested that the establishment of the statistical parameters A and B in the chlorophyll concentration algorithm for the water in the Bay or the turbid coastal water in different seasons. should be based on in situ observational daal for different seasons and for waters of different qualities.

关 键 词：分光反射率 叶绿素 浓度 相关分析 海水 

分 类 号：P734.31[天文地球—海洋化学]