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首页> 外文期刊>Hydrology research >Investigation of the performance of a simple rainfall disaggregation scheme using semi-distributed hydrological modelling of the Lee catchment, UK
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Investigation of the performance of a simple rainfall disaggregation scheme using semi-distributed hydrological modelling of the Lee catchment, UK

机译：使用英国Lee流域的半分布式水文模型对简单降雨分类方案的性能进行调查

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摘要

A simple and practical spatial-temporal disaggregation scheme to convert observed daily rainfall to hourly data is presented, in which the observed sub-daily temporal profile available at one gauge is applied linearly to all sites over the catchment to reproduce the spatially varying daily totals. The performance of the methodology is evaluated using an event-based, semi-distributed, nonlinear hydrological rainfall-runoff model to test the suitability of the disaggregation scheme for UK conditions for catchment sizes of 80-1,000 km~2. The joint procedure is tested on the Lee catchment, UK, for five events from a 12 year period of data from 16 rain gauges and 12 flow stations. The disaggregation scheme generally performs extremely well in reproducing the simulated flow for the natural catchments, although, as expected, performance deteriorates for localized convective rainfall. However, some reduction in performance occurs when the catchments are artificially urbanised.
机译：提出了一种简单实用的时空分解方案，将观测到的每日降雨量转换成小时数据，其中将一个尺度上观测到的次日时间剖面线性应用于流域的所有地点，以再现空间变化的每日总量。使用基于事件的半分布式非线性水文降雨径流模型来评估该方法的性能，以测试分类方案在英国条件下对80-1,000 km〜2汇水面积的适用性。该联合程序已在英国Lee流域进行了测试，以来自16个雨量计和12个流量站的12年数据为基础，进行了5次事件。分解方案通常在为自然流域再现模拟流量方面表现非常出色，尽管正如预期的那样，局部对流降雨的性能会下降。但是，当集水区被人为城市化时，性能会有所下降。

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  • 来源
    《Hydrology research》 |2010年第2期|p.134-144|共11页
  • 作者

    Marie-Laure Segond; Howard S. Wheater; Christian Onof;

  • 作者单位

    Department of Civil and Environmental Engineering, Imperial College London, Skempton Building, London SW7 2AZ, UK Metnext, 17 rue de la banque, F-75002 Paris, France;

    Department of Civil and Environmental Engineering, Imperial College London, Skempton Building, London SW7 2AZ, UK;

    Department of Civil and Environmental Engineering, Imperial College London, Skempton Building, London SW7 2AZ, UK;

  • 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

    disaggregation; rainfall; runoff; semi-distributed modelling;

    机译：分解;雨量;径流;半分布式建模;

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