This study was conducted on the South Fork of the Kings Creek research watershed (outlet location: 39.092281, -96.58719) within Konza Prairie Biological Station (KBPS) near Manhattan (KS, USA). At the USGS gage located on the mainstem (06879560; est. 1979), Kings Creek is a 5th order intermittent stream draining 1059-ha of tallgrass prairie that is actively managed using controlled buns at varying frequencies (1-20 year return intervals) and grazing by bison or cattle. Kings Creek ranges in elevation from 338 to 430 m above sea level and drains into the Kansas River. The region is within a midwestern continental climate, with temperatures ranging from 4 to 22°C and mean annual precipitation averaging about 780 mm/yr.

This site lies within the Flint Hills ecoregion of eastern KS and northeastern OK, has a mean annual temperature of 11.7ºC (1983-2020), and 811 mm annual precipitation (1983-2020) with high interannual variability and an estimated 75% of annual precipitation occurring during late spring and early summer (Hayden 1998, Sadayappan et al. 2023). The AIMS study catchment, the South Fork of Kings Creek, is grazed by bison year-round, and includes sub-catchments with variable prescribed burn history, but the entire study area was burned in early April 2021. The riparian vegetation is deciduous gallery forest and the highest portion of the landscape is tallgrass prairie (Dodds et al. 2004) dominated by warm-season grasses, though woody encroachment has occurred in most subwatersheds (Sadayappan et al. 2023)*. The underlying bedrock of the Flint Hills ecotone is characterized as limestone, mudstone, and shale with predominately silty clay loam soils that rest atop (Hayden 1998, Vero et al. 2018).

These data were collected in support of the sampling goals of the Aquatic Intermittency effects on Microbiomes in Streams (AIMS) Project. 14 pressure transducers were placed in seven sets of nested groundwater and surface water monitoring wells along the Youngmeyer watershed,as well as an additional pressure transducer hanging from a tree at the watershed outlet to collect barometric pressure throughout sites in the watershed. These pressure transducers collected data from 2021 through 2024. These nested well locations monitored water level continuously throughout the project, as well as served as the AIMS approach 2 sampling locations, where a field team co-collected datasets characterizing the hydrology, biogeochemistry, and ecology across seven locations within the Talladega watershed six times across two years.

These sensors were set to collect temperature and pressure data every 15 or 30 minutes starting from 2021 through 2025. The raw pressure data were converted to water level using barometric pressure data and surveyed elevation data. Each .csv file is associated with a single sensor for a single year.

See the included AIMS_GP_KNZ_PRESdata_ReadME.xlsx file for more details.