基于波形形态特征的海洋赤潮识别方法

Ocean red tide recognition method based on wave configuration feature

通过对航空遥感高光谱波形的产生机理和形态特征的分析,提出了一组描述海水赤潮吸收和反射峰的特征参数及其计算方法,根据提取出的特征参数提出了两种海洋赤潮监测和识别的方法。通过对赤潮暴发现场采集的高光谱数据的分析证明,该方法可以有效地提取出数据中赤潮吸收峰和反射峰的特征参数,并且可以识别出赤潮发生的区域。所提出的方法为海洋赤潮的预测、引发赤潮的优势种藻类的判断以及藻类浓度的定量分析奠定了基础。

According to the analysis of the formation mechanism and shape characteristics of the hyperspectral wave shape of the aerial remote sensing, a set of characteristic parameters describing the absorption and reflection crests of the ocean red tide were presented. An algorithm for calculating the parameters was proposed. Two red tide monitoring and recognizing methods were put forward based on the calculated parameters. The methods established a preliminary foundation for forecasting the red tide, analyzing the algae thickness quantificationally as well as estimating the numerous algae which result in the red tide. The results of the experiment proved that the methods were effective in computing the characteristic parameters of the absorption and reflection crests of ocean red tide and recognising the red tide area.