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Statistical estimation of Rosetta branch water quality using multi-spectral data

机译:使用多光谱数据对罗塞塔支流水质进行统计估计

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This research aimed at assessing the approaching of Multi-Spectral Remote Sensing (MS-RS) data for estimating water quality (WQ) of Rosetta branch (RB) using stepwise regression technique. The methodology was based on developing an algorithm for estimating WQ using the Worldview-2 bands reflectance. Results showed that the optical WQ parameters as total suspended solids (TSS) and chlorophyll- a (Chl- a ) were acceptably estimated using MS-RS data with high confident. The optical WQ parameters are the most likely affecting the reflected radiation that sensed by the satellite. However, this research expanded to select non-optical WQ parameters such as pH value and biological demand (BOD) that is less likely affecting the radiation reflectance, nevertheless, still correlated to optical WQ parameters. The determination coefficient showed significant high values for ortho-phosphate (OP), total dissolved solids (TDS), Chl- a and pH with different mathematical formulations depending on pollution level. The results showed that, it is promising to perform routine WQ monitoring programs on different water bodies, even for those has relative narrow width as RB, using MS-RS data.
机译:这项研究旨在评估采用逐步回归技术估算罗塞塔支(RB)水质(WQ)的多光谱遥感(MS-RS)数据的接近性。该方法基于开发使用Worldview-2波段反射率估算WQ的算法。结果表明,使用MS-RS数据可以高度可信地估算光学WQ参数,如总悬浮固体(TSS)和叶绿素-a(Chl-a)。光学WQ参数最有可能影响卫星感测到的反射辐射。然而,这项研究扩展到选择非光学WQ参数,例如pH值和生物需量(BOD),这些参数不太可能影响辐射反射率,但仍与光学WQ参数相关。测定系数显示出正磷酸盐(OP),总溶解固体(TDS),Chla和pH的显着高值,取决于污染程度,数学公式不同。结果表明,使用MS-RS数据,即使对于宽度较窄的RB,也有可能在不同的水体上执行常规WQ监视程序。

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