To appropriately size infrastructure, stormwater managers use estimates of precipitation amount over a range of durations and recurrence intervals (e.g., 100-year 24-hour storms). These estimates are created for every location in the United States by NOAA in their Atlas-14 publication. While Atlas-14 is an important guidance document, a limitation is that it does not account for climate change, even though some of its estimates include data from the late 1800s. To address this gap, we created a proof-of-concept application of NOAA's Atlas-14 methods to dynamically down-scaled climate change projections. This work documented the challenges of combining the methods; and created tools and techniques that can be applied to future iterations of climate change projections. County-level summary PDFs and statewide GeoTIFF maps of our results are also available for download.
This project was supported by the Minnesota Stormwater Research and Technology Transfer Program administered by the University of Minnesota Water Resources Center. Financial support was provided through an appropriation from the Clean Water Fund established by Minnesota Clean Water Land and Legacy Amendment and from the Minnesota Stormwater Research Council with financial appropriations from: Capitol Region Watershed District, Comfort Lake-Forest, Lake Watershed District, Mississippi Watershed Management Organization, Nine Mile Creek Watershed District, Ramsey-Washington Metro Watershed District, South Washington Watershed District, Valley Branch Watershed District, Upper Mississippi River Source Water Protection Project, City of Bloomington, City of Edina, City of Minnetonka, City of Woodbury, Barr Engineering, and Wenck Associates.
Noe, Ryan; Birkel, Jonathan; Locke, Christina; Twine, Tracy; Keeler, Bonnie; Hall, Leah; Pinkalla, Stephanie.
Equipping Municipalities with Climate Change Data to Inform Stormwater Management.
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