摘要
水质定量遥感是目前一个研究热点,笔者研究水体反射光谱特征与总氮(TN)、总磷(TP)之间的关系,为今后利用星载高光谱传感器对黄壁庄水库乃至中国北方内陆水体水质参数进行大面积反演提供理论基础.利用高光谱地物光谱仪在黄壁庄水库进行了反射光谱测量和同步水质采样分析,在分析黄壁庄水库水体反射光谱特征的基础上,通过计算单波段和一阶微分水体光谱反射率与总氮、总磷之间的相关系数,确定总氮、总磷的敏感波段,分别建立了总氮、总磷的遥感定量模型.结果表明在595 nm和873 nm波段反射率的一阶微分均与总氮、总磷浓度有较好的相关性.
Quantitative water remote sensing is a hot research. The authors discuss the relationship between water reflectance spectral characteristics and TN ; TP, providing large inversion theory foundation to Huangbizhuang Reservoir, and even inland water in north China quality parameters using hyperspectral satellite sensors for the future. This study is conducted to establish correlations between reflectance spectra and contents of TN and TP in Huangbizhuang Reservoir..Reflectance spectra are measured by using ASD Field Spec On May 18,2007 10：00-12： 00. Water samples for TN and TP measurements and dominant algal species determination are collected at the same time. By calculating the correlation coefficient between the single-band and law-order differential of water spectral reflectance and TN and TP,it determines sensitive band of TN and TP, and it sets up remote sensing quantitative models on TN and TP using of a law-order differential. Results show that reflection of a band rate law-order differential with TN and TP concentrations has better relevance in the 595nm and 873nm Variable-band.
出处
《石家庄学院学报》
2009年第3期45-49,55,共6页
Journal of Shijiazhuang University
基金
河北省2007年自然科学基金(D2005000537)
河北省科技厅科技攻关项目(04230702)
河北省生态环境实验室开放基金(M-0609)
2007年石家庄学院科研基金
关键词
总氮
总磷
高光谱
微分光谱
TN
TP
hyper-spectral
differential coefficient
