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Statistics preserving spatial interpolation methods for missing precipitation data

机译:保留降水数据的统计保留空间插值方法

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摘要

Deterministic and stochastic weighting methods are commonly used methods for estimating missing precipitation rain gauge data based on values recorded at neighboring gauges. However, these spatial interpolation methods seldom check for their ability to preserve site and regional statistics. Such statistics are primarily defined by spatial correlations and other site-to-site statistics in a region. Preservation of site and regional statistics represents a means of assessing the validity of missing precipitation estimates at a site. This study evaluates the efficacy of traditional interpolation methods for estimation of missing data in preserving site and regional statistics. New optimal spatial interpolation methods intended to preserve these statistics are also proposed and evaluated in this study. Rain gauge sites in the state of Kentucky are used as a case study, and several error and performance measures are used to evaluate the trade-offs in accuracy of estimation and preservation of site and regional statistics.
机译:确定性和随机加权方法是基于在相邻水表处记录的值估算降水不足的雨水表数据的常用方法。但是,这些空间插值方法很少检查其保留站点和区域统计信息的能力。此类统计信息主要由区域中的空间相关性和其他站点间统计信息定义。站点和区域统计数据的保存代表了一种评估站点上缺少降水估计的有效性的方法。这项研究评估了传统插值方法在保留站点和区域统计数据中估算缺失数据的有效性。这项研究还提出并评估了旨在保留这些统计数据的新的最佳空间插值方法。以肯塔基州的雨量计站点为案例研究,并使用几种误差和性能度量来评估站点和区域统计的估计和保存准确性之间的权衡。

著录项

  • 作者

    El Sharif, Husayn.;

  • 作者单位

    Florida Atlantic University.;

  • 授予单位 Florida Atlantic University.;
  • 学科 Civil engineering.
  • 学位 M.S.
  • 年度 2012
  • 页码 208 p.
  • 总页数 208
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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