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Maumee Trends

Maumee Trends. Pete Richards Heidelberg University. Temperature and Precip at Toledo Airport (1960-2010). Statistically significant increases: Temperature increase of 1.87°C, 2.32°C in winter, 2.71°C in winter Tmin Precipitation increase of 0.41 mm.

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Maumee Trends

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  1. Maumee Trends Pete Richards Heidelberg University

  2. Temperature and Precip at Toledo Airport (1960-2010) • Statistically significant increases: • Temperature increase of 1.87°C, 2.32°C in winter, 2.71°C in winter Tmin • Precipitation increase of 0.41 mm

  3. Maumee Storm Runoff Statistics (1960-2010) • Statistically significant increases: • Number of storm runoff events per year (67% increase) • Number of spring runoff events (40%) • Number of winter runoff events (47%) • Annual storm discharge (53%) • Summer storm discharge (27%) • Other seasonal comparisons show increases but not significant ones • Rapid increases 1960-1970, slower increases since

  4. Maumee Water Quality Trends (1975-2011) ?

  5. Maumee Water Quality Trends (1975-2011) ?

  6. Maumee Water Quality Trends (1975-2011) ?

  7. Top third Bottom third Maumee Loads Last Five Years • Several Big Loading Years • Ranks of each year’s load (out of 34 years)

  8. Maumee Loads Last Five Years • Spring (April-June) DRP loads in 2010 and 2011 each were record-breakers

  9. Conclusion • Almost everything is going up! Support: NSF Water Sustainability and Climate Grant #1039043 NOAA-CSCOR Grant #NA07OAR432000 State of Ohio EPA Great Lakes National Program Office The Andersons The Fertilizer Institute USDA Natural Resources Conservation Service

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