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1 Climate Variability El Nino/Southern Oscillation Dynamics Equations of Motion

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Page 1: Climate Variability - Boston Universitysites.bu.edu/thompsonlab/files/2018/01/Discussion-Slides.pdf · 2018. 4. 16. · Clim. Isotherm: Grey Cont. oos. 200 goo -4 -3 Jan 1997 degrees

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Climate Variability El Nino/Southern Oscillation

Dynamics Equations of Motion

Page 2: Climate Variability - Boston Universitysites.bu.edu/thompsonlab/files/2018/01/Discussion-Slides.pdf · 2018. 4. 16. · Clim. Isotherm: Grey Cont. oos. 200 goo -4 -3 Jan 1997 degrees

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Precursors to El Nino/Southern Oscillation

Anderson, 2004 (J.Clim)

Sea Level Pres. Anom: Shading

Sea Level Pres. 90%CI.: Black Cont. Sfc. Wind Stress: Vector

TWC and Relation to Other ENSO Precursors

Meridional Mode Mechanism

Page 3: Climate Variability - Boston Universitysites.bu.edu/thompsonlab/files/2018/01/Discussion-Slides.pdf · 2018. 4. 16. · Clim. Isotherm: Grey Cont. oos. 200 goo -4 -3 Jan 1997 degrees

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TWC and Relation to Other ENSO Precursors

Meridional Mode Mechanism

Trade Wind Charging

Mechanism

“Charging” of the ENSO System

Anderson et al. (2013) – GRL

Page 4: Climate Variability - Boston Universitysites.bu.edu/thompsonlab/files/2018/01/Discussion-Slides.pdf · 2018. 4. 16. · Clim. Isotherm: Grey Cont. oos. 200 goo -4 -3 Jan 1997 degrees

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“Charging” of the ENSO System

Anderson et al. (2013) – GRL

Response of ENSO System

Page 5: Climate Variability - Boston Universitysites.bu.edu/thompsonlab/files/2018/01/Discussion-Slides.pdf · 2018. 4. 16. · Clim. Isotherm: Grey Cont. oos. 200 goo -4 -3 Jan 1997 degrees

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Response of ENSO System Con’t.

“Charging” of the ENSO System

Anderson et al. (2013) – GRL

Temp. Diff.: Shading

Clim. Isotherm: Grey Cont.