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首页> 外文期刊>Journal of Hydroinformatics >Estimation of missing precipitation records integrating surface interpolation techniques and spatio-temporal association rules
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Estimation of missing precipitation records integrating surface interpolation techniques and spatio-temporal association rules

机译：结合表面插值技术和时空关联规则估算降水记录

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Deterministic and stochastic weighting methods are the most frequently used methods fornestimating missing rainfall values. These methods may not always provide accurate estimatesndue to their inability to completely characterize the spatial and temporal variability of rainfall.nA new association rule mining (ARM) based spatial interpolation approach is proposed, developednand investigated in the current study to estimate missing precipitation values at a gaugingnstation. As an integrated approach this methodology combines the power of data miningntechniques and spatial interpolation approaches. Data mining concepts are used to extract andnformulate rules based on spatial and temporal associations among observed precipitation datanseries. The rules are then used to improve the precipitation estimates obtained from spatialninterpolation methods. A stochastic spatial interpolation technique and three deterministicnweighting methods are used as interpolation methods in the current study. Historical dailynprecipitation data obtained from 15 rain gauging stations from a temperate climatic regionn(Kentucky, USA) are used to test this approach and derive conclusions about its efficacy fornestimating missing precipitation data. Results suggest that the use of association rule mining innconjunction with a spatial interpolation technique can improve the precipitation estimates.
机译：确定性和随机加权方法是估计缺失降雨值的最常用方法。这些方法可能无法始终提供准确的估计值，原因是它们无法完全刻画降雨的时空变化。n提出了一种新的基于关联规则挖掘（ARM）的空间插值方法，并在当前研究中进行了研究，以估算出降雨时降水的缺失值。计量站。作为一种集成方法，该方法结合了数据挖掘技术和空间插值方法的强大功能。数据挖掘概念用于根据观测到的降水数据系列之间的时空关联来提取和制定规则。然后使用这些规则来改进从空间内插方法获得的降水估计。随机空间插值技术和三种确定性加权方法被用作当前研究中的插值方法。从一个温带气候地区（美国肯塔基州）的15个测雨站获得的历史日降水数据被用来测试这种方法，并得出有关其能有效预测缺失降水数据的结论。结果表明，将关联规则挖掘与空间插值技术结合使用可以改善降水估算。

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