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首页> 外文期刊>Natural Hazards and Earth System Sciences Discussions >Implementation of WRF-Hydro at two drainage basins in the region of Attica, Greece, for operational flood forecasting
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Implementation of WRF-Hydro at two drainage basins in the region of Attica, Greece, for operational flood forecasting

机译：在两种排水盆地的WRF-HYDRO在希腊Attica地区的实施，用于运营洪水预测

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An integrated modeling approach for forecasting flood events is presented in the current study. An advanced flood forecasting model, which is based on the coupling of hydrological and atmospheric components, was used for a twofold objective: first to investigate the potential of a coupled hydrometeorological model to be used for flood forecasting at two medium-size drainage basins in the area of Attica?(Greece) and second toinvestigate the influence of the use of the coupled hydrometeorologicalmodel on the precipitation forecast skill. For this reason, we usedprecipitation and hydrometric in situ data for six flood events at twoselected drainage regions of Attica. The simulations were carried out withthe Weather Research and Forecasting?(WRF) model?(WRF-only) and theWRF-Hydro system in a fully coupled mode, under which surface, subsurface, and channel hydrological processes were parameterized at a fine-resolutiongrid of 95?m approximately. Results showed that the coupled WRF-Hydro system was capable of producing the observed discharge during the flood episodes, after the adequate calibration method applied at the studied basins. This outcome provides confidence that the model configuration under the two-way atmospheric–hydrological coupling is robust and, thus, can be used for operational flood forecasting purposes in the area of Attica. In addition, the WRF-Hydro model showed a tendency to slightly improve the simulated precipitation in comparison to the precipitation produced by the atmospheric-only version of the model?(WRF), demonstrating the capability of the coupled WRF-Hydro model to enhance the precipitation forecast skill for operational flood predictions.
机译：目前研究介绍了预测洪水事件的综合建模方法。一种先进的洪水预测模型，基于水文和大气组分的耦合，用于双重目标：首先要研究用于在两个中等大小的排水盆地中用于洪水预测的耦合水压液模型的潜力阿提卡地区？（希腊）和第二次以对耦合水力解决对沉淀预测技能的影响的影响。出于这个原因，我们在Attica的二尖端引流区域使用Precipitation和viTue数据进行六次洪水事件。使用天气研究和预测进行模拟？（WRF）模型？（仅限WRF）和WRF-Hydro系统，在一个完全耦合模式下，在哪个表面，地下和通道水文过程中以精细分辨率进行参数化大约95？m大约。结果表明，在研究盆地应用的足够校准方法之后，耦合的WRF-Hydro系统能够在洪水集中产生观察到的放电。这一结果提供了令人信心，即双向大气压 - 水文耦合下的模型配置是稳健的，因此，可用于阿提卡地区的操作洪水预测目的。此外，WRF-Hydro模型表明，与模型的大气版本产生的沉淀相比，略微改善模拟沉淀的趋势？（WRF），展示了耦合的WRF-Hydro模型增强的能力运营洪水预测的降水预测技能。

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