城市生活污水偏振反射特性研究

Study on Polarized Reflectance of City Life Polluted Water

人类正面临着水污染的严峻挑战,其中生活污水是水污染的一大来源。研究城市生活污水的液面偏振反射特性,对于水资源的监测与利用、环境生态保护都具有重大理论意义和应用前景。本文选取不同浓度的三个生活污水样本,应用二向反射光度计测了不同样本在2π空间的多角度偏振反射光谱数据,建立探测方位角、光线入射角、探测天顶角、偏振角、波段等方面对所测水体的偏振反射数据的关系,并进行了初步分析与研究。这为偏振遥感在水资源环境上的应用奠定了实验基础,并对生活污水的偏振光遥感进行了初步研究。

Human beings are facing with an austere challenge of the water pollution now, and life water pollution is one kind of water pollution. Studying on the liquid surface polarized reflectance spectrum of city life polluted water, it has very important theoretical meaning and application foreground for the monitor and use of water resource and protect of environment and ecology. In this paper, three samples of city life polluted water were collected with a bi-directional reflectance detection instrument. The specialties of this instrument he in its ability to measure the polarized reflectance of targets at various zenith viewing angles, incidence light zenith angles and azimuth angles with band A（630- 690nm）and band B（760-1100nm）, Hence, analysis according those characteristics listed above was done. Polarized reflectance of polluted water will not only help to find a new way for water detection remotely, but also provide a theoretical basis for further research on the polarized light remote sensing.