浒苔藻体全生命周期反射光谱特征参量的时间谱趋势分析  

Time Spectra Analysis of Reflectance Spectra Characteristic Variables of Enteromorpha Prolifera

作　　者：卢霞[1] 王春艳[1] 张薇[1] 李彦辉[1] 

机构地区：[1]淮海工学院测绘工程学院,江苏连云港222005

出　　处：《测绘科学技术学报》2013年第5期500-504,共5页Journal of Geomatics Science and Technology

基　　金：江苏省自然科学基金项目(BK2009164);国家级大学生创新创业训练计划项目(201211641006);江苏省大学生创新创业训练计划项目(2012JSSPITP2673)

摘　　要：要实现浒苔灾害的大尺度遥感动态监测,掌握浒苔藻体的反射光谱是根本。选取连云港海域浒苔藻体,在实验控制条件下,从孢子期、幼苗期、成熟期至死亡期的全生命周期培养,测试其生长期中的反射光谱,提取红边位置、红边幅值等22个光谱特征参量;并采用曲线估计方法对这些光谱特征变量的时间谱演变趋势进行研究。结果表明:所有光谱特征参量的时间谱曲线模拟中,近红外平台面积时间谱模拟精度最高,判定系数可达0.918,估算标准差为0.006;17个光谱特征参量的时间谱均可用适当函数模拟其演变趋势。该研究为大尺度动态监测浒苔灾害提供重要光谱参考和算法理论依据。The spectra characteristics of Enteromorpha prolifera is the foundation in order to dynamically monitor it in a large scale.Enteromorpha prolifera samples were collected from Lianyungang sea area,and under the condition of laboratory control,the whole life cycle from spore stage,seeding stage,mature to the death were cultivated.During the growing period,the reflectance spectra of Enteromorpha prolifera were measured.Twenty two spectra variables were extracted by using spectral morphology technology and time spectra were established and discussed by using curve estimation method.The research results indicated that the simulation accuracy of time spectra of near-infrared platform area was the highest,the R2 was up to 0.918 and the standard deviation of estimation was 0.006.The evolution patterns of time profile of seventeen spectra character parameters were simulated by feasible function.The reflectance spectra and theoretical basis for dynamically monitoring Enteromorpha prolifera hazard in a large scale would be provided by the research.

关 键 词：浒苔 全生命周期 反射光谱 时间谱 光谱特征变量 

分 类 号：P237[天文地球—摄影测量与遥感] O433[天文地球—测绘科学与技术]