What started and maintained
the OK/TX drought of 1998?
We explored the roles of
• Sea surface temperature anomalies
(El Niño/La Niña)
• Favorable atmospheric
conditions? (used global model)
•
• Feedback from soil
moisture (used regional model)
•
• Why did it end?
•
• Implications for predictability?
•
(Song-you
Hong and Eugenia Kalnay, Nature, December 2000, J. of Clim, 2002)