• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on River Basin Management; 200509; Bologna(IT) >Trend analysis for irrigation water quality in Egypt
【24h】

Trend analysis for irrigation water quality in Egypt

机译：埃及灌溉水水质趋势分析

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The quality of water affects the quality of life - as concerns over water quality problems increase, scientists and engineers are requited to interpret available data and disseminate information. Water quality data analysis enables the assessment of constituents, determination of trends or correlations and thus supporting water management. This scrutiny uses prevalent trend detection techniques to evaluate the canals subject to irrigation purposes in Egypt, It presents the results of the irrigation water quality analysis for selected water quality parameters in four vital canals covering the irrigation system in the Eastern Nile Delta region, The aim of this investigation is to identify short-term water quality trends in Egyptian canals and to develop a methodology for assessing future water quality trends, According to the national water quality-monitoring network, data from five years (Aug.1999—Jul. 2004) of monthly basis records was examined. The internal structure of the water quality data sets and the correlation between locations was studied using the correlation coefficient matrix. Cluster analysis was used to encompass a wide range of multivariate methods, which results in the grouping of similar sampling sites, The results showed a strong correlation between consecutive locations in El-Salam Canal without drainage outfalls in between and among all consecutive locations in El-Rayah El Tawfiki and Ismailya Canals. Trend evaluation was conducted using the best-fitted trend models which revealed that the linear model better describes the DO correlation while the exponential model better describes the TDS correlation between locations in the El-Salam Canal.
机译：水的质量影响生活质量-随着对水质量问题的关注增加，科学家和工程师被要求解释可用数据并传播信息。水质数据分析可以评估成分，确定趋势或相关性，从而支持水管理。本研究使用流行趋势检测技术对埃及的灌溉渠进行了评估，提出了灌溉水质分析结果，分析了覆盖尼罗河东部地区灌溉系统的四个重要渠中选定水质参数，目的是这项调查的目的是确定埃及运河的短期水质趋势，并开发一种评估未来水质趋势的方法。根据国家水质监测网络，五年来的数据（1999年8月至2004年7月）每月记录的检查。使用相关系数矩阵研究了水质数据集的内部结构和位置之间的相关性。聚类分析涵盖了广泛的多变量方法，可将相似的采样点进行分组。结果显示，El-Salam运河的连续位置之间紧密相关，而El-Salam运河的所有连续位置之间和之间均无排水口Rayah El Tawfiki和伊斯玛利亚运河。使用最适合的趋势模型进行趋势评估，该模型显示线性模型可以更好地描述DO的相关性，而指数模型可以更好地描述El-Salam运河之间的位置之间的TDS相关性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号