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首页> 外文OA文献 >The Impact of Retention Polders, Dyke-Shifts and Reservoirs on Discharge in the Elbe River - Hydrological Modelling Study in the Framework of the Action Plan for the Flood Protection in the Elbe River Basin of the International Commission for the Protection of the Elbe River (ICPER/IKSE/MKOL)
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The Impact of Retention Polders, Dyke-Shifts and Reservoirs on Discharge in the Elbe River - Hydrological Modelling Study in the Framework of the Action Plan for the Flood Protection in the Elbe River Basin of the International Commission for the Protection of the Elbe River (ICPER/IKSE/MKOL)

机译：保留Pol，堤坝和水库对易北河流量的影响-易北河国际保护委员会易北河流域防洪行动计划框架内的水文模拟研究/ IKSE / MKOL）

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摘要

A hydrological model simulation study has been carried out in the Elbe basin using detailed data obtained from the relevant Czech and German institutes. The LISFLOOD model has been calibrated for the Elbe river basin using these data. Using this calibrated model setup, two studies have been carried out in the framework of the Action Plan for Flood Protection of the International Commission for the Protection of the Elbe River (ICPER/IKSE/MKOL).The 2002 flood without dyke-breaks: The first part of the simulation study was a simulation of the 2002 summer flood without dyke-breaks. It has been estimated here that without dyke-breaks, the discharge in the lower part of the Elbe river would have been 2.6 ¿ 9.1 % higher (117-384 m3/s). Waterlevels would have between 18 and 54 cm higher.Reservoir Study: The planned scenario for Saale reservoir steering investigated here does not have any significant influence on the discharge of the Elbe. The influence of changing the flood storage in the Bleiloch and Hohenwarte reservoirs in winter from 40 to 55 Mm3 and in summer from 25 to 35 Mm3 on river discharge has been assessed. The scenario results have shown that this planned scenario for reservoir steering in the Saale cascade does not have a significant influence on the discharge of the river Elbe, for the investigated flood events in 1994, 2002 und 2003 at gauging station Calbe-Griezehne (lower Saale). Also the influence on the discharge in the river Elbe is marginal: changes in peak discharge downstream the Saale-confluence are in the order of 0.2% (difference in discharge 4-8 m3/s). Furthermore, the influence of the Vltava reservoir cascade was investigated using two datasets provided by the Czech Hydro-Meteorological Institute (CHMI): one dataset with the actual situation and steering of the Vltava cascade, and a scenario without the Vltava cascade. For floods with a magnitude such as in August 2002, the difference between the scenario with and without the Vltava cascade is between 1.6 and 3.7% (84-171 m3/s) in the German part of the Elbe river.Polder and Dyke-shift Study: The potential effects of 5 polders and 20 dyke-shifts on discharge in the river Elbe have been estimated. The main outcomes are the following: The 20 planned dyke-shifts reduce the peak discharge of the 2002 summer flood with 1.3-4.6% (58-202 m3/s). Waterlevels would have been 10-31cm lower. For the 2006 flood the results are similar in character, but lower in magnitude. The measures reduce the peak discharge of the 2006 spring flood with 0.4-1.3% (10-48 m3/s). Waterlevels would have been 3-10cm lower.The 5 planned polders and 20 planned dyke-shifts simulated here, reduce the peak discharge of the 2002 summer flood with 3.9-10.8% (178-469 m3/s). Waterlevels would have been 23-74cm lower. For the 2006 flood, the results are again lower: the measures reduce the peak discharge of the 2006 spring flood with 1.2-3.3% (31-121 m3/s). Waterlevels would have been 8-21cm lower.
机译：利用从捷克和德国有关机构获得的详细数据，在易北河盆地进行了水文模型模拟研究。使用这些数据已为易北河流域校准了LISFLOOD模型。使用这种校准的模型设置，在国际易北河保护委员会的防洪行动计划（ICPER / IKSE / MKOL）的框架内进行了两项研究.2002年的无堤防洪水：模拟研究的第一部分是模拟2002年夏季没有堤防断裂的洪水。据估计，在没有堤坝中断的情况下，易北河下游的排放量将增加2.6 9.1％（117-384 m3 / s）。水位将高出18至54厘米。水库研究：这里研究的萨勒河水库转向的计划方案对易北河的排放没有任何重大影响。评估了Bleiloch和Hohenwarte水库的蓄水量在冬季从40 Mm3变为55 Mm3，夏季从25 Mm3变为35 Mm3对河流流量的影响。方案结果表明，对于1994年，2002年和2003年在Calbe-Griezehne站（下Saale）进行的洪水调查，Saale梯级水库转向的这一计划方案对易北河的排放没有重大影响。 ）。同样，对易北河的排放量的影响很小：萨累河合流下游的峰值排放量变化约为0.2％（排放量差异为4-8 m3 / s）。此外，使用捷克水文气象学院（CHMI）提供的两个数据集研究了伏尔塔瓦河水库级联的影响：一个具有伏尔塔瓦河级联的实际情况和操纵的数据集，以及没有伏尔塔瓦河级联的情况。对于2002年8月这样的大洪水，易北河德国段有和没有伏尔塔瓦河瀑布的情况之间的差异在1.6和3.7％（84-171 m3 / s）之间。研究：估计了5个the田和20个堤坝移位对易北河排放的潜在影响。主要结果如下：计划的20次堤防转移使2002年夏季洪水的洪峰流量降低了1.3-4.6％（58-202 m3 / s）。水位低了10-31厘米。对于2006年的洪水，结果的特征相似，但幅度较小。这些措施将2006年春季洪水的高峰流量降低了0.4-1.3％（10-48 m3 / s）。水位本应降低3-10厘米。在此模拟的5个计划地和20个计划堤防变化将2002年夏季洪水的洪峰流量降低3.9-10.8％（178-469 m3 / s）。水位低了23-74厘米。对于2006年的洪水，结果再次降低：这些措施将2006年春季洪水的高峰流量降低了1.2-3.3％（31-121 m3 / s）。水位低了8-21厘米。

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    GIERK Meike; DE ROO Arie;

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  • 年度 2008
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