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Maryland Climate Change: Observed and Model Simulated Temperature Precipitation & Runoff

Maryland Climate Change: Observed and Model Simulated Temperature Precipitation & Runoff. Progress Report to MDE October 30, 2008. Dr. Konstantin Vinnikov, Acting State Climatologist for Maryland Prof. Russell Dickerson, Department of Atmospheric and Oceanic Science

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Maryland Climate Change: Observed and Model Simulated Temperature Precipitation & Runoff

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  1. Maryland Climate Change: Observed and Model Simulated Temperature Precipitation & Runoff Progress Report to MDE October 30, 2008 Dr. Konstantin Vinnikov, Acting State Climatologist for Maryland Prof. Russell Dickerson, Department of Atmospheric and Oceanic Science University of Maryland at College Park, MD

  2. East Coast States: Observed Seasonal Variation of Mean Air Temperature and Trend

  3. East Coast States: Observed Seasonal Variation of Mean Precipitation and Trend

  4. East Coast Rivers: Observed Seasonal Variations of Runoff and Trend

  5. Annual Cycle of Precipitation at MD and VA has MAX in the Summer and MIN in the Autumn. This makes our climate so nice.

  6. The most important observed century scale climatic trends at Maryland and Virginia

  7. How well climatic models simulate seasonal variation of atmospheric precipitation? OBSERVED MODEL SIMULATIONS

  8. How well models reproduce observed 1895-2008 climatic trends? Observed trends Trends in model simulated climate variations

  9. How well climatic models simulate future climate change? SUMMER AUTUMN

  10. CONCLUSIONS: • Mid-East Coast states enjoy beautiful climate with seasonal Max of precipitation in the Summer and Min in the Autumn. • Global warming 1895-2008 has been accompanied by a decrease in Summer -and increase in Autumn precipitation in MD, VA, and other Mid-East Coast states. • These observed changes in precipitation are real and result in the observed Summer decrease and Autumn increase of river runoff. • GFDL/NOAA Climate Model global warming scenario simulations give us hope that the observed century scale Summer precipitation trend in MD & VA is going to change from a decreasing trend to an increasing trend.

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