HR: 08:45h
AN: A31A-02 INVITED     [Abstracts]
TI: Extreme Winter Precipitation Events in the Western United States: The impact of ENSO and the Madden-Julian Oscillation
AU: * Schubert, S
EM: siegfried.d.schubert@nasa.gov
AF: Global Modeling and Assimilation Office, NASA/GSFC, Greenbelt, MD 20771 United States
AU: Chang, Y
EM: chang@gmao.gsfc.nasa.gov
AF: Global Modeling and Assimilation Office, NASA/GSFC, Greenbelt, MD 20771 United States
AU: Suarez, M
EM: max.j.suarez@nasa.gov
AF: Global Modeling and Assimilation Office, NASA/GSFC, Greenbelt, MD 20771 United States
AU: Pegion, P
EM: pegion@janus.gsfc.nasa.gov
AF: Global Modeling and Assimilation Office, NASA/GSFC, Greenbelt, MD 20771 United States
AB: The west coast of the United States occasionally experiences intense winter storms that account for a major fraction of the total seasonal rain(snow)fall. In some cases, it is not a single storm, but a series of storms, that batter the west coast in a matter of few weeks. These storms, unfortunately, are often associated with flooding, mudslides and other disasters that can lead to extensive property damage and even loss of life. In this talk, I will review our current understanding of the nature of these storms and the extent to which their occurrence is impacted by El Nino/Southern Oscillation and the Madden Julian Oscillation. The results are based on 50 years of precipitation observations, NCEP/NCAR reanalyses, and idealized experiments with a global atmospheric general circulation model.
DE: 1620 Climate dynamics (3309)
DE: 3322 Land/atmosphere interactions
DE: 3337 Numerical modeling and data assimilation
DE: 3339 Ocean/atmosphere interactions (0312, 4504)
DE: 4522 El Ni¤o
SC: Atmospheric Sciences [A]
MN: 2005 Joint Assembly