AIMS Johnston Draw Continuous Water Quality at Watershed Outlet Data (AIMS_MW_JDR_EXOS)

This resource contains high-frequency YSI EXO2 water quality sensor data collected at the outlet of the Johnston Draw watershed, including conductivity, dissolved oxygen, turbidity, fluorescent dissolved organic matter, and temperature. Johnston Draw is a 1.8 km² watershed in southwestern Idaho, USA (outlet location: 43.1226, -116.776) located within the Reynolds Creek Critical Zone Observatory in western Idaho, a research center with cattle grazing. Elevation ranges from approximately 1,490 to 1,850 m. The mean annual precipitation in the watershed is 550 mm/yr with rainfall occurring at the lower elevations and snowfall, resulting in large drifts, at the higher elevations (Godsey et al., 2018). Mean annual temperature ranges from 8.9°C at the bottom of the watershed to 4.7°C near the top. These data were collected in support of the core sampling goals of the Aquatic Intermittency effects on Microbiomes in Streams (AIMS) Project. Between May 2022 and July 2023, surface water quality and physicochemistry were monitored at the watershed outlet (JSS01) at 15-minute intervals using a multi-parameter sonde (YSI EXO2).本数据集包含采集自美国爱达荷州西南部约翰斯顿德劳流域出水口的高频YSI EXO2水质传感器监测数据，监测指标涵盖电导率、溶解氧、浊度、荧光溶解有机物及水温。约翰斯顿德劳流域面积为1.8 km²，地处美国爱达荷州西部的雷诺兹克里克关键带观测站（Reynolds Creek Critical Zone Observatory）范围内，该观测站为开展牛群放牧研究的科研基地，流域出水口坐标为43.1226, -116.776。流域海拔范围约1490至1850米，年平均降水量为550 mm/年：低海拔区域以降雨为主，高海拔区域则以降雪为主，易形成大面积积雪堆积（Godsey等，2018）。流域底部年平均气温为8.9℃，流域顶部附近年平均气温为4.7℃。本数据集采集工作服务于"溪流水生间歇性对河流微生物组的影响（Aquatic Intermittency effects on Microbiomes in Streams，AIMS）"项目的核心采样目标。2022年5月至2023年7月期间，研究团队使用YSI EXO2多参数水质探头，以15分钟为采样间隔，对该流域出水口（编号JSS01）的地表水水质及理化性质开展了持续监测。