Flash Flooding in Arid/Semiarid Regions: Dissecting the Hydrometeorology and Hydrology of the 19 August 2014 Storm and Flood Hydroclimatology in Arizona
Flash Flooding in Arid/Semiarid Regions: Dissecting the Hydrometeorology and Hydrology of the 19 August 2014 Storm and Flood Hydroclimatology in Arizona
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DOI：
10.1175/jhm-d-17-0089.1
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发表时间：
2017-11
影响因子：
3.8
通讯作者：
Long Yang;J. Smith;M. Baeck;E. Morin;D. Goodrich
中科院分区：
文献类型：
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作者：
Long Yang;J. Smith;M. Baeck;E. Morin;D. Goodrich
摘要美国西南部干旱/半干旱地区山洪暴发的水文气候学、水文气象学和水文学通过对长期、高分辨率降雨和流量测量观测的经验分析以及基于运动学径流和侵蚀模型（KINEROS 2）的2014年8月19日风暴的水文建模分析进行了研究。这里提出的分析集中在识别的结构和演变的洪水产生的风暴，以及时空降雨变率和流域特征的相互作用，在确定该地区的降雨和洪水量级的上尾属性。这项研究的重点是在亚利桑那州的Marvila县，具有对比鲜明的地貌特性的四个流域。亚利桑那州中部的山洪在时间和空间上都很集中，反映了北美季风和复杂地形的控制。北美季风期间的雷暴系统，以2014年8月19日的风暴为代表。
AbstractThe hydroclimatology, hydrometeorology, and hydrology of flash floods in the arid/semiarid southwestern United States are examined through empirical analyses of long-term, high-resolution rainfall and stream gauging observations, together with hydrological modeling analyses of the 19 August 2014 storm based on the Kinematic Runoff and Erosion Model (KINEROS2). The analyses presented here are centered on identifying the structure and evolution of flood-producing storms, as well as the interactions of space–time rainfall variability and basin characteristics in determining the upper-tail properties of rainfall and flood magnitudes over this region. This study focuses on four watersheds in Maricopa County, Arizona, with contrasting geomorphological properties. Flash floods over central Arizona are concentrated in both time and space, reflecting controls of the North American monsoon and complex terrain. Thunderstorm systems during the North American monsoon, as represented by the 19 August 2014 storm...