ACOM Seminar: Dr. Natalia Calvo


Title: The complex behavior of the 2015/2016 El Nino winter

Presenter: Dr. Natalia Calvo, Associate Proffesor at Dpto. Fisica de la Tierra II (Universidad Complutense de Madrid), Affiliate Scientist NCAR/ACOM

Abstract:  This talk will examine the outstanding characteristics of the strong 2015-2016 El Nino (EN) winter, with particular attention to the polar stratosphere, potential polar stratospheric ozone effects and the EN impact over the European region. Despite being classified as a strong eastern Pacific (EP) EN event, this event showed an anomalous behavior with some signatures that are typical of central Pacific (CP) EN winters instead. They include (i) record-breaking value of the CP index, (ii) a stronger polar vortex in early and midwinter, due to reduced upward wave activity and a weakened Aleutian low, and (iii) the occurrence of one of the earliest stratospheric final warmings on record, which are more prone to occur during CP-EN.

Monday, September 11, 2017, 3:30 p.m.
Refreshments 3:15 p.m.
NCAR Foothills Laboratory
FL2-1022, Large Auditorium
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Announcement Timing: 
September 8, 2017 to September 11, 2017
Calendar Timing: 
Monday, September 11, 2017 - 3:30pm to 4:30pm