表征赤潮水体太阳激发的叶绿素荧光高度的波段优化——归一化荧光高度法

赵冬至; 张丰收; 杨建洪; 郭皓; 赵玲

表征赤潮水体太阳激发的叶绿素荧光高度的波段优化——归一化荧光高度法

国家海洋环境监测中心辽宁大连 116023

基金项目: 国家“863”计划资助项目(2001AA636020);国家“十五”科技攻关计划资助项目(2001BA603B-06-01-1)

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出版历程
- 收稿日期: 2004-11-04
- 修回日期: 2005-06-30

The optimized spectral bands ratio for the relation of sun-induced chlorophyll fluorescence height with high chlorophyll a concentration of algal bloom waters

National Marine Environmental Monitoring Center, State Oceanic Administration, Dalian 116023, China

摘要

摘要: 采用现场实测和室内培养两种方式测定了甲藻、赤潮异弯藻、叉角藻、海洋蓝绿藻等赤潮和新月菱形藻、叉鞭金藻、塔胞藻、扁藻和小球藻等非赤潮藻类光谱曲线.采用度量太阳激发的叶绿素荧光峰高度的归一化荧光高度法,建立了不同藻类归一化荧光高度与叶绿素浓度的关系.荧光高度计算方法是将红光波段的反射率最大值(R_maxred)和R₆₈₅分别归一化到560 nm处的R₅₆₀和560 nm附近整个光谱曲线的最大值R_{560 max}上或675 nm处的R₆₇₅和675 nm附近的最小值R_675mini上.结果表明,不同藻类的R_maxred/R₅₆₀max和R_maxred/R_675mini与叶绿素a的相关系数分别比R₆₈₅/R₅₆₀和R₆₈₅/R₆₇₅与叶绿素的相关系数高,但在海洋现场测量中由于近岸二类水体其他水色组分以及大气校正误差的影响,R_maxred/R_675mini和R₆₈₅/R₆₇₅更适合于实测的叶绿素浓度估算.采用三种统计回归方程建立了不同藻类归一化荧光高度与叶绿素浓度关系,除个别藻种外,大部分的相关系数在0.9以上,其中FLH=a+(Chla)^b回归方程得到的相关系数优于其他两种方法,相关系数大于0.93,这表明藻类水体的荧光特性和叶绿素浓度之间的普遍关系是非线性的.
- 藻类 /
- 太阳激发的叶绿素荧光 /
- 叶绿素a /
- 赤潮
Abstract: To investigate the relation of sun-induced fluorescence peak near 700 nm to chlorophyll a concentration,data set of the reflectance spectra of red tide species such as Gymnodinium spp.,Heterosigma akashiwo,Ceratium furca and other algae such as Nitzschia closterium,Dicrateria zhanjiangensis Hu.Platymonas sp.,Chlorococcum sp.,Platymonas helgolandica var tsingtaoensis,Chlorella sp.getting from in situ and culture was measured.Because the magnitude and position of different algae's fluorescence peak vary with the increasing of chlorophyll a concentration.Reflectance at maximum red and 685 nm of spectrum was normalized to R_560,max,R_675,mini and R₅₆₀,R₆₇₅ separately.The results show that along with algae's variation,R_red,max/R_560,max and R_red,max/R_675,mini have better correlations with chlorophyll a concentration than R₆₈₅/R₅₆₀ and R₆₈₅/R₆₇₅,however,with the consideration of complex components of Case2 water and atmosphere correction error,R_red,max/R_675,mini and R₆₈₅/R₆₇₅ are more suit able for retrieval of chlor ophylla concent ration in coastal water.Simultaneously three regression equations were put into use with all the regression coefficients more than 0.9 exept Heterosigma akashiwo.The R coefficient of regression equation of FLH=a+(Chla)^b is better than the others with R more than 0.93,which shows that the relationship between fluo rescence characteristics of algae's water and chlorophyll a concentration is nonlinear.
- algae /
- suninduced chlorophyll fluorescence(SICF) /
- chlorophylla /
- red tide

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参考文献(20)

LORENZEN C L. A method for the continuous measurement of in vivo chlorophyll concentration [J]. Deep-Sea Research, 1966,13:223-227.

MOREL A,PRIEUR L. Analysis of variations in ocean color [J]. Limnology and Oceanography, 1977, 22:709-722.

NEVILLE R A,GOWER, J F R. Passive remote sensing of phytoplankton via chlorophyll-a fluorescence [J]. Journal of Geophysical Research, 1977, 82:3 487-3 493.

潘德炉,毛天明,李淑菁.海洋卫星资料的地理定位及相关几何参数算法研究[J].海洋学报,1997,19(5):56-68.

潘德炉,DOERFFER R中国FY-1B卫星海洋通道应用于水色遥感的潜力研究[J].海洋学报,1996,18,(1):43-50.

GOWER J F R,DOERFFOR R, BORSTAD G A. Interpretation of the 685 nm peak in water leaving radiance spectra in term of fluorescence, absorption and scattering, and its observation by MERIS [J]. Int J Remote Sensing, 1999, 20(9):1 771-1 786.

GITELSON A. The peak near 700 nmn on radiance spectra of algae and water:relationships of its magnitude and position with chlorophyll concentration [J]. Int J Remote Sensing, 1992, 13(17):3 367-3 373.

VOS W L,DONEZE M,BUETEVELD H. On the reflectance spectrum of algae in water:the nature of the peak at 700 nm and its shift with varying concentration. Communication on Sanitary Engineering and Water Management, Delft, the Netherlands. Technical Report[R]. 1986. 86-220.

VASIKOV A, KOPELVICH O. The reasons of maxium at 700 nm on the radiance spectra of the sea[J]. Oceanology, 1982, 22:945-950.

KISHINO M, SUGIHARA S,OKAMI N. Theoretical analysis of the in-situ fluorescence of chlorophyll a on the underwater spectra irrandiance[J]. Bulletin de la SociétéFranco-Japanaise d'Océanographie, 1986, 24:130-138.

赵冬至,丛丕福.渤海叉角藻赤潮的光谱特征研究[A].渤海赤潮灾害监测与评估研究文集[C].北京:海洋出版社,2000.109-116.

赵冬至,刘玉机.中国污染水体光谱特征[M].北京:海洋出版社,2001.291-327.

孙军,刘东艳,张晨,等.渤海中部和渤海海峡及其邻近海域浮游植物粒级生物量的初步研究Ⅰ.浮游植物粒级生物量的分布特征[J].海洋学报,2003,25(5):103-112.

FISCHER J, KRONFELD U. Sun-stimulated chlorophyll fluorescence:1. Influence of oceanic properties[J]. Int J Remote Sensing,1990, 11:2 125-2 147.

KISHOINO M, SUGIUHARA S, OKAMI N. Influence of fluorescence of chlorophyll a on the underwater upward irradiance spectrum [J]. La Mer, 1984, 22:224-232.

KARABASHEV G S. On concentration dependence of chlorophyll fluorescence in the oceanic waters of diverse trophicity[J]. Oceanology, 1998, 38:342-346.

PREZÉLIN B B, BOCZAR B A. Molecular bases of cell absorption and fluorescence in phytoplankton:potential applications to studies in optical oceanography[J]. Prog Phycol Res, 1986, 4:349-464.

JOHNSEN G,SAKSHAUG E. Light harvesting in bloom-forming marine phytoplankton:species-specificity and photoacclimation[J].Scient. Mar, 1996, 60:47-56.

DEMMING-ADAMS B, ADAMS Ⅲ W W. Photoprotection and other responses of plants to high light stress[J]. Ann Rev Plant Physiol & Plant Biol, 1992, 43:599-626.

IOC CG. Status and Plans for Satellite Ocean-Colour Missions:Considerations for Complementary Missions. YODER J A. Reports of the International Ocean-Colour Coordinating Group:No. 2[R]. Dartmouth, Canada, IOCCG, 1999.

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