Climate Connection

Increase in Extreme Precipitation  
The Northeast is subject to nor’easters which have the ability to produce significant rain and snow amounts. Over the past 30 years, an increase in the amount of extreme precipitation (both rain and snow) has occurred all across the region. The greatest increase being 30% in parts of New York while the smallest occurred mainly along the coastal regions at 9-12%. Climate models project that extreme precipitation will continue to increase into the century.  
Groisman, P. Y., Knight, R. W., & Karl, T. R. (2001). Heavy Precipitation and High Streamflow in the Contiguous United States: Trends in the Twentieth Century. Bulletin of the American Meteorological Society, 82(2), 219–246. doi:10.1175/1520-0477(2001)082<0219:hpahsi>;2
,Kunkel, K.E, L.E. Stevens, S.E. Stevens, L. Sun, E. Janssen, D. Wuebbles, J. Rennells, A. DeGaetano, J. G. Dobson, 2013: Regional Climate Trends and Scenarios for the U.S. National Climate Assessment. Part 1. Climate of the Northeast U.S., NOAA Technical Report NESDIS 142-1, 78 pp.,DeGaetano, A. T. (2009). Time-dependent changes in extreme-precipitation return-period amounts in the continental United States. Journal of Applied Meteorology and Climatology, 48(10), 2086-2099.,Hayhoe, K., Wake, C., Anderson, B., Liang, X.-Z., Maurer, E., Zhu, J., … Wuebbles, D. (2007). Regional climate change projections for the Northeast USA. Mitigation and Adaptation Strategies for Global Change, 13(5-6), 425–436. doi:10.1007/s11027-007-9133-2
,Francis, J. A., & Vavrus, S. J. (2012). Evidence linking Arctic amplification to extreme weather in mid-latitudes. Geophysical Research Letters, 39(6), n/a–n/a. doi:10.1029/2012gl051000
,Schoof, J. T., Pryor, S. C., & Surprenant, J. (2010). Development of daily precipitation projections for the United States based on probabilistic downscaling. Journal of Geophysical Research, 115(D13). doi:10.1029/2009jd013030

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