Long-term hydrological and biological data from Williams and Shingobee Lakes, north-central Minnesota

The Shingobee Headwaters Aquatic Ecosystem Project is a long-term, multi-disciplinary monitoring and research study of a 28-square-kilometer headwaters watershed in north-central Minnesota that began in 1978. Emphasis is on processes related to hydrology, limnology, geochemistry, and watershed ecology and the land-water and atmosphere-water interfaces. Lakes are a substantial focus and integrator of many of the physical, chemical, and biological processes that occur within watersheds. Large volumes of groundwater discharge provide resilience to lakes and wetlands in response to anthropogenic and climatic influences. Minnesota, located in north-central USA, has been both warmer and wetter than normal during the past several decades. Date selected from the Shingobee watershed collected from 1978 to 2020 indicate that some parameters have changed as expected based on the recent warm, wet period, some parameters have changed in unexpected ways, and some parameters indicate little to no change.