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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 rainfallnto hourly data is presented, in which the observed sub-daily temporal profile available at onengauge is applied linearly to all sites over the catchment to reproduce the spatially varying dailyntotals. The performance of the methodology is evaluated using an event-based, semi-distributed,nnonlinear hydrological rainfall–runoff model to test the suitability of the disaggregation schemenfor UK conditions for catchment sizes of 80–1,000km2. The joint procedure is tested on the Leencatchment, UK, for five events from a 12 year period of data from 16 rain gauges and 12 flownstations. The disaggregation scheme generally performs extremely well in reproducing thensimulated flow for the natural catchments, although, as expected, performance deteriorates fornlocalized convective rainfall. However, some reduction in performance occurs when thencatchments 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,其中将观测到的次日时间分布线性应用于流域的所有地点,以再现空间变化的观测总量。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80-1,000 km2的集水区英国条件下的适用性。该联合程序已在英国Leencatchment上进行了测试,该测试来自16个雨量计和12个飞行站的12年数据中的5个事件。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,性能会降低局部对流降雨的能力。但是,当集水区被人为地城市化时,性能会有所下降。

著录项

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

    Marie-Laure Segond (corresponding author)Howard S. WheaterChristian OnofDepartment of Civil and EnvironmentalEngineering,Imperial College London,Skempton Building,London SW7 2AZ,UKMarie-Laure Segond (corresponding author)Present address: Metnext,17 rue de la banque,F-75002 Paris,FranceE-mail: marie-laure.segond@metnext.com;

  • 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;降雨;径流;半分布式模型;

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