Potential of commercial microwave link network derived rainfall for river runoff simulations
Potential of commercial microwave link network derived rainfall for river runoff simulations
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商业微波链路网络衍生降雨用于河流径流模拟的潜力
DOI：
10.1088/1748-9326/aa5f46
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发表时间：
--
影响因子：
6.7
通讯作者：
Kunstmann
中科院分区：
文献类型：
--
作者：
Smiatek;Chwala;Fersch;Kunstmann
商业微波链路网络可以量化路径综合降水量，因为水凝物的衰减与发射站和接收站之间的降雨量相关。这些网络由手机公司运营和维护，从而提供了全新的全国范围的降水测量。由于全世界传统雨量站网络的密度大幅度下降，微波链路得出的降水量估计不仅受到水文学家的日益重视，而且也受到气象和水文服务部门的日益重视。我们研究了微波推导的降水估计用于径流预测和水平衡分析的潜力，并以德国阿尔卑斯山（阿默河）地形复杂地区为例。我们调查的额外价值的链接导出的降雨量估计相结合，站观测站和气象雷达导出的值。我们的河川径流模拟系统采用100× 100 m网格分辨率的分布式水文模型。我们分析了潜在的微波链路推导出的降水估计为两集的30天，通常是温和的河流流量和极端洪水的插曲。模拟结果表明，这种新的降水监测方法的潜力：一个显着的改善过程线再现已经实现了在极端洪水期，其特点是大量的当地强降水事件。单靠现有的雨量监测仪无法准确捕捉这些事件。
Commercial microwave link networks allow for the quantification of path integrated precipitation because the attenuation by hydrometeors correlates with rainfall between transmitter and receiver stations. The networks, operated and maintained by cellphone companies, thereby provide completely new and country wide precipitation measurements. As the density of traditional precipitation station networks worldwide is significantly decreasing, microwave link derived precipitation estimates receive increasing attention not only by hydrologists but also by meteorological and hydrological services. We investigate the potential of microwave derived precipitation estimates for streamflow prediction and water balance analyses, exemplarily shown for an orographically complex region in the German Alps (River Ammer). We investigate the additional value of link derived rainfall estimations combined with station observations compared to station and weather radar derived values. Our river runoff simulation system employs a distributed hydrological model at 100× 100 m grid resolution. We analyze the potential of microwave link derived precipitation estimates for two episodes of 30 days with typically moderate river flow and an episode of extreme flooding. The simulation results indicate the potential of this novel precipitation monitoring method: a significant improvement in hydrograph reproduction has been achieved in the extreme flooding period that was characterized by a large number of local strong precipitation events. The present rainfall monitoring gauges alone were not able to correctly capture these events.
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影响因子：
3.8
作者：
Chwala, Christian;Keis, Felix;Kunstmann, Harald
通讯作者：
Kunstmann, Harald
影响因子：
6.3
作者：
Chwala, C.;Gmeiner, A.;Kunstmann, H.
通讯作者：
Kunstmann, H.
高山流域高分辨率数值天气与河流径流耦合预测模型系统的实现和性能分析
DOI：
10.1016/j.envsoft.2012.06.001
发表时间：
2012
期刊：
Environ. Model. Softw.
影响因子：
--
作者：
G. Smiatek;H. Kunstmann;J. Werhahn
通讯作者：
J. Werhahn
DOI：
--
发表时间：
2005
期刊：
影响因子：
--
作者：
H. Kunstmann;J. Krause;S. Mayr
通讯作者：
S. Mayr