Monthly precipitation and runoff series of Begura de Salma River (Mallorca, Spain): January 2015-October 2018

Here we provide the data set obtained as described in detail in Estrany et al. (2020, doi:10.5194/nhess-2019-304); a brief description is presented below. A hydrometric gauging station is located where the Begura de Salma River enters Sant Llorenç des Cardassar, a village located in the northeastern part of Mallorca island (Spain). The station was built by the water authority in the 1970s. After years of abandonment, in 2015 the MEDhyCON Research Group installed within the gauge house a Hobo Water Level U20L-04, which measures the water stage by 1-minute readings, accumulating 15-minute average values. The station is located at the very beginning of the concrete channel that takes the river through the village. Closing a drainage basin of 23 km2, it is located ca. 50 m upstream from the first of the five bridges that cross the river within the village. In the absence of direct flow measurements for Q estimation, a complete two-dimensional hydraulic model was applied with HEC-RAS 5.0.6 software (November 2018 version) in order to establish a stage-discharge rating curve. The hydrological monitoring period was from 10th January 2015 to 31st October 2018, including the catastrophic flash-flood event occurred the 9th October 2018. This gives a series of almost 4 hydrological years.本数据集依据Estrany等人（2020年，doi:10.5194/nhess-2019-304）中的详细方法获取，下文将对其进行简要说明。一座水文测站（hydrometric gauging station）设于贝古拉德萨尔马河（Begura de Salma River）汇入圣洛伦索德卡达尔萨尔（Sant Llorenç des Cardassar）的位置，该村落位于西班牙马略卡岛（Mallorca Island）东北部。该测站于20世纪70年代由当地水务部门建成。在多年废弃后，MEDhyCON研究组于2015年在测站房内安装了Hobo Water Level U20L-04水位计，该设备以1分钟为间隔采集水位数据，并生成15分钟平均水位值。该测站位于引导河流流经村落的混凝土渠道的起点处，其控制流域面积达23 km²，距离村内横跨该河流的五座桥梁中的第一座上游约50米。由于缺乏用于流量（Q）估算的直接流量实测数据，研究团队采用HEC-RAS 5.0.6软件（2018年11月版本）构建了完整的二维水力模型，以此建立水位-流量关系曲线。本次水文监测时段为2015年1月10日至2018年10月31日，涵盖了2018年10月9日发生的灾难性山洪事件，最终得到近4个水文年的观测序列。