Relation of the double‐ITCZ bias to the atmospheric energy budget in climate models

Ori Adam; Tapio Schneider; Florent Brient; Tobias Bischoff

doi:10.1002/2016gl069465

journal article Jul 18, 2016

Relation of the double‐ITCZ bias to the atmospheric energy budget in climate models

Ori Adam Tapio Schneider

Florent Brient

Tobias Bischoff

Geophysical Research Letters Vol. 43 No. 14 pp. 7670-7677 · American Geophysical Union (AGU)

View at Publisher Save 10.1002/2016gl069465

Abstract

AbstractWe examine how tropical zonal mean precipitation biases in current climate models relate to the atmospheric energy budget. Both hemispherically symmetric and antisymmetric tropical precipitation biases contribute to the well‐known double‐Intertropical Convergence Zone (ITCZ) bias; however, they have distinct signatures in the energy budget. Hemispherically symmetric biases in tropical precipitation are proportional to biases in the equatorial net energy input; hemispherically antisymmetric biases are proportional to the atmospheric energy transport across the equator. Both relations can be understood within the framework of recently developed theories. Atmospheric net energy input biases in the deep tropics shape both the symmetric and antisymmetric components of the double‐ITCZ bias. Potential causes of these energetic biases and their variation across climate models are discussed.

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Metrics

59

Citations

40

References

Details

Published: Jul 18, 2016
Vol/Issue: 43(14)
Pages: 7670-7677
License: View

Authors

O

Ori Adam

Department of Earth Sciences ETH Zurich Zurich Switzerland

T

Tapio Schneider

Department of Earth Sciences ETH Zurich Zurich Switzerland; California Institute of Technology Pasadena California USA

F

Florent Brient

Department of Earth Sciences ETH Zurich Zurich Switzerland

T

Tobias Bischoff

California Institute of Technology Pasadena California USA

Funding

Swiss National Science Foundation

National Center for Atmospheric Research (NCAR) Climate

Global Dynamics Laboratory (CGD)

Swiss National Science Foundation and the U.S. National Science Foundation Award: AGS-1049201

Cite This Article

Ori Adam, Tapio Schneider, Florent Brient, et al. (2016). Relation of the double‐ITCZ bias to the atmospheric energy budget in climate models. Geophysical Research Letters, 43(14), 7670-7677. https://doi.org/10.1002/2016gl069465

Relation of the double‐ITCZ bias to the atmospheric energy budget in climate models

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