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首页> 外文会议>Effective Utilization of Agricultural Soil amp; Water Resources and Protection of Environment >Evaluation of Sprinkler Irrigation Uniformity by Double Interpolation Using Cubic Splines
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Evaluation of Sprinkler Irrigation Uniformity by Double Interpolation Using Cubic Splines

机译：三次样条插值二次插值法评价喷灌均匀度

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摘要

An evaluation method,with accompanying software,was developed to precisely calculate uniformity from catch-can test data,assuming sprinkler distribution data to be a continuous variable.This has value in assessing application uniformity of sprinkler irrigation designs.Two interpolation steps are required to compute unknown water application depths at grid distribution points from radial distribution of catch-cans'data: using both radial and peripheral interpolations,Interpolation by cubic splines was used to give accurately interpolated values.In theory,this method has higher accuracy compared with conventional methods of analysing catch-can data.Water application depths were calculated at each grid point and uniformity coefficients were computed from the grid distribution maps of water application depths.
机译：开发了一种评估方法和随附的软件，可根据罐装测试数据精确计算均匀度，并假设洒水喷头分布数据为连续变量。这对于评估洒水灌溉设计的应用均匀性具有价值。计算需要两个插值步骤从捕获罐数据的径向分布得出的网格分布点的未知施水深度：使用径向插值法和外围插值法，三次样条插值法可得出准确的插值。理论上，该方法比常规方法具有更高的精度。在每个网格点上计算施水深度，并根据施水深度的网格分布图计算均匀系数。

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  • 来源
  • 会议地点 Nanjing(CN);Nanjing(CN)
  • 作者

    NAN Hua; rnLI Xiaojun; rnZHOU Ying;

  • 作者单位

    Han Wenting@Institute of Soil and Water Conservation Chinese Academy of Sciences and Ministry of Water Resources,Northwest Agriculture Forestry University,Yangling,Shaanxi,China--Fen Hao@Institute of Soil and Water Conservation Chinese Academy of Sciences and Ministry of Water Resources,Northwest Agriculture Forestry University,Yangling,Shaanxi,China--Wu Pute@Institute of Soil and Water Conservation Chinese Academy of Sciences and Ministry of Water esources,Northwest Agriculture Forestry University,Yangling,Shaanxi,China--Yang Qing@Institute of Soil and Water Conservation Chinese Academy of Sciences and Ministry of Water Resources,Northwest Agriculture Forestry University,Yangling,Shaanxi,China--Chen Xiangwei@Institute of Soil and Water Conservation Chinese Academy of Sciences a;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 农田基本建设、农垦;
  • 关键词

    sprinkler irrigation; uniformity; evaluation; cubic splines; double interpolation;

    机译：喷灌均匀度评价三次样条二次插值;

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