...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nordic hydrology >Monitoring of regional lake water clarity using Landsat imagery
【24h】

Monitoring of regional lake water clarity using Landsat imagery

机译：使用Landsat影像监测区域湖泊水的清晰度

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 application of remote sensing technology to water quality monitoring has special significance for lake management at regional scale. Water clarity expressed in terms of Secchi disk transparency (SDT) is a highly useful indicator of trophic status and ecosystem health. In this study, we related Landsat TM and ETM+ data with ground observations to develop a model for the estimation of SDT which can be used as a standardized procedure for regional-scale lake clarity assessment in the central region of Argentina. Samples were taken from two reservoirs of the region. Pearson correlation coefficients and step-wise multiple regression analysis were used to evaluate correlation between Landsat bands and measured SDT. Results suggested that Landsat band 3 plus the ratio 1/3 was a consistent and reliable predictor of SDT (R~2 = 0.80). The algorithm was validated (R~2 = 0.81) and applied to the November 10,2010 ETM+ image obtaining a map that characterized water clarity of reservoirs within the study area. The procedure presented here could become a low cost measurement tool for water management authorities and decision-makers, obtaining simpler and practical results for regional water clarity monitoring.
机译：遥感技术在水质监测中的应用对于区域规模的湖泊管理具有特殊意义。以Secchi圆盘透明度（SDT）表示的水净度是营养状态和生态系统健康的非常有用的指标。在这项研究中，我们将Landsat TM和ETM +数据与地面观测资料联系起来，以开发出SDT估算模型，该模型可作为阿根廷中部地区湖泊规模净度评估的标准程序。从该地区的两个储层中取样。皮尔逊相关系数和逐步多元回归分析用于评估Landsat波段与测得的SDT之间的相关性。结果表明，Landsat带3加上比率1/3是SDT的一致且可靠的预测因子（R〜2 = 0.80）。该算法经过验证（R〜2 = 0.81），并应用于2010年11月10日的ETM +图像，获得了表征研究区域内水库水净度的地图。此处介绍的程序可能会成为水务管理部门和决策者的低成本测量工具，为区域水净度监测获得更简单实用的结果。

著录项

  • 来源
    《Nordic hydrology》 |2015年第5期|661-670|共10页
  • 作者

    Matias Bonansea; Raquel Bazan; Claudia Ledesma; Claudia Rodriguez; Lucio Pinotti;

  • 作者单位

    Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Departamento de Estudios Basicos y Agropecuarios, Facultad de Agronomia y Veterinaria (FAyV), Universidad Nacional de Rio Cuarto (UNRC), Ruta Nacional 36 Km 601, (5800) Rio Cuarto, Cordoba, Argentina;

    Departamento de Ingenieria Quimica y Aplicada, Facultad de Ciencias Exactas Fisicas y Naturales (FCEFyN), Universidad Nacional de Cordoba (UNC), Juan Filloy s, Ciudad Universitaria, (5000) Cordoba, Argentina Instituto Superior de Estudios Ambientales (ISEA-UNC), Secretaria de Ciencia y Tecnologla (UNC), Juan Filloy s, Ciudad Universitaria, (5000) Cordoba, Argentina;

    Departamento Ciencias Basicas, FAyV, UNRC, Ruta Nacional 36 Km 601, (5800) Rio Cuarto, Cordoba, Argentina;

    Departamento Ciencias Basicas, FAyV, UNRC, Ruta Nacional 36 Km 601, (5800) Rio Cuarto, Cordoba, Argentina;

    CONICET - Departamento de Geologia, UNRC, Ruta Nacional 36 Km 601, (5800) Rio Cuarto, Cordoba, Argentina;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    algorithm; Landsat; remote sensing; reservoir; Secchi disk transparency; water clarity;

    机译：算法;陆地卫星遥感;水库Secchi磁盘透明性;水的清晰度;

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