This $300,236 National Science Foundation project grant will fund collaborative research exploring the influence of agricultural tile drainage on streamflow and water temperatures in the Midwestern United States. Funded under the Geosciences program (CFDA 47.050), which supports basic research in atmospheric, earth, and ocean sciences to strengthen the national scientific enterprise, this research will develop quantile regression models to examine how tile drainage alters streamflow and water temperatures at both regional and local watershed scales.
The Trustees of Indiana University will conduct the research through December 2025. Statistical models will assess the full distributional impacts of tile drainage on sub-daily and daily streamflows and temperatures across the agricultural portions of the Mississippi River Basin. Stakeholder engagement throughout the modeling process will shape results and ensure actionable outcomes. Workshops and research experiences will engage students. Findings will improve understanding of how tile drainage has altered regional and local hydrology and temperatures, providing insight into water quality, flooding, and drought effects in the Midwest.
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