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首页> 外文期刊>The Science of the Total Environment >Comparison of stage/discharge rating curves derived from different recording systems: Consequences for streamflow data and water management in a Mediterranean island
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Comparison of stage/discharge rating curves derived from different recording systems: Consequences for streamflow data and water management in a Mediterranean island

机译：来自不同记录系统的阶段/放电评级曲线的比较：地中海岛中流出数据和水管理的后果

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摘要

Obtaining representative hydrometric values is essential for characterizing extreme events, hydrological dynamics and detecting possible changes on the long-term hydrology. Reliability of streamflow data requires a temporal continuity and a maintenance of the gauging stations, which data are affected by epistemic and random sources of error. An assessment of discharge meterings' and stage-discharge rating curves' uncertainties were carried out by comparing the accuracy of the measuring instruments of two different hydrometric networks (i.e., one analogical and one digital) established in the same river location at the Mediterranean island of Mallorca. Furthermore, the effects of such uncertainties were assessed on the hydrological dynamics, considering the significant global change impacts beset this island. Evaluation was developed at four representative gauging stations of the hydrographic network with analogic (approximate to 40 years) and digital (approximate to 10 years) data series. The study revealed that the largest source of uncertainty in the analogical (28 to 274%) and in the digital (17-37%) networks were the stage-discharge rating curves. Their impact on the water resources was also evaluated at the event and annual scales, resulting in an average difference of water yields of 183% and 142% respectively. Such improvement on the comprehension of hydrometric networks uncertainties will dramatically benefit the interpretation of the long-term streamflow by providing better insights into the hydrologic and flood hazard planning, management and modelling. (c) 2019 Published by Elsevier B.V.
机译：获得代表性液度值对于表征极端事件，水文动力学和检测长期水文的可能变化至关重要。 StreamFlow数据的可靠性需要时间连续性和测量站的维护，数据受到认知和随机源的影响。通过比较在地中海地中海地中海地中海地中海岛立的两条不同的河流位置（即，一个类似的河流位置的测量仪器的精度（即，在地中海地中海地区）的测量仪器的准确性，进行了对放电信息的评估马略卡。此外，考虑到这种岛屿的重大全球变化影响，对这种不确定性的影响是对水文动力学进行评估。评估是在水文网络的四个代表性测量站开发的，其中（近似为40年）和数字（大致10年）数据系列。该研究表明，类比（28至274％）和数字（17-37％）网络中最大的不确定性源是阶段排放额定曲线。他们对事件和年度的尺度也评估了对水资源的影响，导致水产量分别为183％和142％的平均差异。这种改进对水文网络的不确定性的理解将大大利于通过对水文和洪水危害计划，管理和建模的更好的见解来衡量长期流流。 （c）2019年由elestvier b.v发布。

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  • 来源
    《The Science of the Total Environment》 |2019年第may15期|968-981|共14页
  • 作者

    Fortesa J.; Garcia-Comendador J.; Calsamiglia A.; Lopez-Tarazon J. A.; Latron J.; Alorda B.; Estrany J.;

  • 作者单位

    Univ Balearic Isl Mediterranean Ecogeomorphol & Hydrol Connect Res Dept Geog Carretera Valldemossa Km 7-5 Palma De Mallorca 07122 Spain|Univ Balearic Isl Inst Agroenvironm & Water Econ Res INAGEA Carretera Valldemossa Km 7-5 Palma De Mallorca 07122 Spain;

    Univ Balearic Isl Mediterranean Ecogeomorphol & Hydrol Connect Res Dept Geog Carretera Valldemossa Km 7-5 Palma De Mallorca 07122 Spain|Univ Balearic Isl Inst Agroenvironm & Water Econ Res INAGEA Carretera Valldemossa Km 7-5 Palma De Mallorca 07122 Spain;

    Univ Balearic Isl Mediterranean Ecogeomorphol & Hydrol Connect Res Dept Geog Carretera Valldemossa Km 7-5 Palma De Mallorca 07122 Spain|Univ Balearic Isl Inst Agroenvironm & Water Econ Res INAGEA Carretera Valldemossa Km 7-5 Palma De Mallorca 07122 Spain;

    Univ Balearic Isl Mediterranean Ecogeomorphol & Hydrol Connect Res Dept Geog Carretera Valldemossa Km 7-5 Palma De Mallorca 07122 Spain|Univ Balearic Isl Inst Agroenvironm & Water Econ Res INAGEA Carretera Valldemossa Km 7-5 Palma De Mallorca 07122 Spain|Univ Potsdam Inst Earth & Environm Sci Karl Liebknecht Str 24-25 D-14476 Potsdam Germany|Univ Lleida Fluvial Dynam Res Grp Dept Environm & Soil Sci Ave Alcalde Rovira Roure 191 Lleida 25198 Spain;

    Spanish Res Council CSIC Inst Environm Assessment & Water Res IDAEA Jordi Girona 18 Barcelona 08034 Spain;

    Univ Balearic Isl Dept Phys Carretera Valldemossa Km 7-5 Palma De Mallorca 07122 Spain;

    Univ Balearic Isl Mediterranean Ecogeomorphol & Hydrol Connect Res Dept Geog Carretera Valldemossa Km 7-5 Palma De Mallorca 07122 Spain|Univ Balearic Isl Inst Agroenvironm & Water Econ Res INAGEA Carretera Valldemossa Km 7-5 Palma De Mallorca 07122 Spain;

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  • 正文语种 eng
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  • 关键词

    Hydrometric networks; Stage-discharge; Metering; Uncertainty; Error propagation;

    机译：水文网络;舞台放电;计量;不确定性;错误传播;

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