AIMS Shambley Creek Field Physicochemistry Data and Field Notes (AIMS_SE_WHR_YSIS)

These data were collected in support of the sampling goals of the Aquatic Intermittency effects on Microbiomes in Streams (AIMS) Project.This study was conducted in the Shambley Creek research watershed (outlet location: 32.98410915, -88.01334337) on privately owned property in Greene County (AL, USA). The watershed drains a non-perennial unnamed tributary to Shambley Creek, and contains 0.70 km^2 of coniferous forest managed for silviculture in the East Gulf Coastal Plain physiographic section. Located near Eutaw, AL, the watershed spans an elevation range from 63 to 94 m above sea level, and is a tributary to the Sipsey River (within the larger Mobile-Tombigbee basin). The region has a humid subtropical climate, with mean daily January and July air temperatures of 7.3°C and 27.4°C respectively, and mean annual precipitation of 1,350 mm/yr. Between 27 September 2021 and 30 July 2024, we measured physicochemical parameters including water temperature (degrees Celsius), barometric pressure (mmHg), specific conductance (microSiemens per centimeter), dissolved oxygen, pH, and turbidity at the watershed outlet (WHM01) every 3 weeks during routine sensor maintenance (AIMS Approach 1), seasonally at seven distributed, long term monitoring sites across the watershed (AIMS Approach 2) using a YSI Pro1030 Waterproof Handheld meter. Readings were allowed to stabilize while water sampling took place. Data is not available when the site was dry - as noted by the flow_state column. In addition, some sampling events lacked a YSI handheld and data is therefore missing.