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首页> 外文期刊>Environmental Processes >Relating Hydrological and Meteorological Drought Indices in Order to Identify Causes of low Flows in the Catchment of Blanice River
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Relating Hydrological and Meteorological Drought Indices in Order to Identify Causes of low Flows in the Catchment of Blanice River

机译：相关的水文和气象干旱指数，以查明布兰妮丝河集水区流量不足的原因

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摘要

The relationship between meteorological and hydrological drought is in focus in the catchment of Blanice River (Central Bohemia Region, South Bohemia Region). Drought indices used in and presented are the Standardized Precipitation Index (SPI) and the Streamflow Drought Index (SDI). Drought was first analyzed from both the meteorological and hydrological point of view, and then the indices were compared in order to identify the importance of preceding period length in the occurrence of hydrological drought. The total area of the catchment is 534 km2 and is located 50 km southeast of Prague. For the assessment of drought, data from one hydrological gauging station and from a number of meteorological stations were used. The time series used are more than 50 years long. The analyses of precipitation data carried out were supported by GIS application in order to get areal precipitation data based on available station data. Drought indices were calculated on the basis of data for the entire period; however, the analysis of the relationship between SDI and SPI covers only the period from 1961 to 2015 for which the values were available for both considered indices. The results of performed analyses show the correlation between hydrological and meteorological drought indices which is strongest for the reference periods from 3 to 6 months.
机译：布拉尼采河（中波西米亚地区，南波西米亚地区）流域的重点是气象干旱与水文干旱之间的关系。所使用和提供的干旱指数是标准降水指数（SPI）和水流干旱指数（SDI）。首先从气象和水文角度对干旱进行了分析，然后比较了各项指标，以确定前期长度对水文干旱发生的重要性。该流域的总面积为534平方公里，位于布拉格东南50公里处。为了评估干旱，使用了来自一个水文监测站和许多气象站的数据。使用的时间序列超过50年。 GIS应用程序支持进行降水数据分析，以便根据可用的台站数据获得区域降水数据。干旱指数是根据整个时期的数据计算得出的；但是，对SDI与SPI的关系的分析仅涵盖1961年至2015年这段时期内，两个被考虑的指数都可获得该值。进行的分析结果表明，水文和气象干旱指数之间的相关性在3至6个月的参考期内最强。

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  • 来源
    《Environmental Processes》 |2017年第1期|S149-S161|共13页
  • 作者

    Vaclav David; Tereza Davidova;

  • 作者单位

    Faculty of Civil Engineering, Department of Irrigation, Drainage and Landscape Engineering, Czech Technical University in Prague, Thakurova 7, 166 29 Prague 6, Czech Republic;

    Faculty of Civil Engineering, Department of Irrigation, Drainage and Landscape Engineering, Czech Technical University in Prague, Thakurova 7, 166 29 Prague 6, Czech Republic;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Hydrological drought; Meteorological drought; Correlation; Blanice River;

    机译：水文干旱;气象干旱;相关性布兰妮丝河;

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