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Water quality assessment using remote sensing techniques: Medrano Creek, Argentina

机译:使用遥感技术进行水质评估:阿根廷梅德兰诺克里克

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摘要

Two spectral bands of the visible spectrum [0.45-0.52 mu m (Blue), 0.52-0.60 mu m (Green)] of satellite images obtained by LANDSAT 7 ETM + have been used in this study to follow the contaminated waters of Medrano Creek when it flows into Rio de la Plata River. The former is one of the five fresh watercourses going through the Metropolitan Area of Buenos Aires, Argentina, where 13 million people live. Previous studies have shown that the water quality of Rio de la Plata at the outlet of Medrano Creek has decreased more than 50% as a source of water for human consumption. The non-treated effluents of the textile industry probably affect the water quality. We have developed a model that predicts the water quality index (WQI) of surface waters in the study area and uses linear regression analysis. The model has been validated using a data set of 12 physicochemical parameters obtained during the last 3 years. The potentiality of using satellite images was confirmed by the results: (a) to trace the organic contamination (associated with dyes) in freshwater systems and (b) as tools for decision making in the management of water resources. (c) 2006 Elsevier Ltd. All rights reserved.
机译:LANDSAT 7 ETM +获得的卫星图像的可见光谱的两个光谱带[0.45-0.52μm(蓝色),0.52-0.60μm(绿色)]已用于跟踪Medrano Creek受污染水域时的情况。它流入里约拉普拉塔河。前者是穿越阿根廷布宜诺斯艾利斯大都市区的五个淡水河道之一,那里有1300万人居住。先前的研究表明,梅德拉诺克里克(Medrano Creek)出口处的里约拉普拉塔河(Rio de la Plata)的水质已下降50%以上,作为人类饮用水的来源。纺织工业未经处理的废水可能会影响水质。我们已经开发了一个预测研究区域地表水水质指数(WQI)的模型,并使用线性回归分析。该模型已使用最近3年中获得的12个物理化学参数的数据集进行了验证。结果证实了使用卫星图像的潜力:(a)追踪淡水系统中的有机污染物(与染料有关),以及(b)作为水资源管理决策的工具。 (c)2006 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Journal of Environmental Management》 |2006年第4期|p. 429-433|共5页
  • 作者单位

    Comis Nacl Energia Atom, Ctr Atom Constituyentes, Unidad Act Quim, RA-1650 San Martin, Buenos Aires, Argentina;

    Univ Nacl Gen San Martin, Escuela Posgrad, RA-1650 San Martin, Buenos Aires, Argentina;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 环境规划与环境管理;
  • 关键词

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