Publication Abstracts

Voigt et al. 2016

Voigt, A., M. Biasutti, J. Scheff, J. Bader, S. Bordoni, F. Codron, R.D. Dixon, J. Jonas, S.M. Kang, N.P. Klingaman, R. Leung, J. Lu, B. Mapes, E.A. Maroon, S. McDermid, J.-Y. Park, R. Roehrig, B.E.J. Rose, G.L. Russell, J. Seo, T. Toniazzo, H.-H. Wei, M. Yoshimori, and L.R.V. Zeppetello, 2016: The tropical rain belts with an annual cycle and a continent model intercomparison project: TRACMIP. J. Adv. Model. Earth Syst., 8, no. 4, 1868-1891, doi:10.1002/2016MS000748.

This paper introduces the Tropical Rain belts with an Annual cycle and a Continent Model Intercomparison Project (TRACMIP). TRACMIP studies the dynamics of tropical rain belts and their response to past and future radiative forcings through simulations with 13 comprehensive and one simplified atmosphere models coupled to a slab ocean and driven by seasonally varying insolation. Five idealized experiments, two with an aquaplanet setup and three with a setup with an idealized tropical continent, fill the space between prescribed-SST aquaplanet simulations and realistic simulations provided by CMIP5/6. The simulations reproduce key features of present-day climate and expected future climate change, including an annual-mean intertropical convergence zone (ITCZ) that is located north of the equator and Hadley cells and eddy-driven jets that are similar to present-day climate. Quadrupling CO2 leads to a northward ITCZ shift and preferential warming in Northern high latitudes. The simulations show interesting CO2-induced changes in the seasonal excursion of the ITCZ and indicate a possible state dependence of climate sensitivity. The inclusion of an idealized continent modulates both the control climate and the response to increased CO2; for example, it reduces the northward ITCZ shift associated with warming and, in some models, climate sensitivity. In response to eccentricity-driven seasonal insolation changes, seasonal changes in oceanic rainfall are best characterized as a meridional dipole, while seasonal continental rainfall changes tend to be symmetric about the equator. This survey illustrates TRACMIP's potential to engender a deeper understanding of global and regional climate and to address questions on past and future climate change.

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BibTeX Citation

  author={Voigt, A. and Biasutti, M. and Scheff, J. and Bader, J. and Bordoni, S. and Codron, F. and Dixon, R. D. and Jonas, J. and Kang, S. M. and Klingaman, N. P. and Leung, R. and Lu, J. and Mapes, B. and Maroon, E. A. and McDermid, S. and Park, J.-Y. and Roehrig, R. and Rose, B. E. J. and Russell, G. L. and Seo, J. and Toniazzo, T. and Wei, H.-H. and Yoshimori, M. and Zeppetello, L. R. V.},
  title={The tropical rain belts with an annual cycle and a continent model intercomparison project: TRACMIP},
  journal={J. Adv. Model. Earth Syst.},

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RIS Citation

ID  - vo06100q
AU  - Voigt, A.
AU  - Biasutti, M.
AU  - Scheff, J.
AU  - Bader, J.
AU  - Bordoni, S.
AU  - Codron, F.
AU  - Dixon, R. D.
AU  - Jonas, J.
AU  - Kang, S. M.
AU  - Klingaman, N. P.
AU  - Leung, R.
AU  - Lu, J.
AU  - Mapes, B.
AU  - Maroon, E. A.
AU  - McDermid, S.
AU  - Park, J.-Y.
AU  - Roehrig, R.
AU  - Rose, B. E. J.
AU  - Russell, G. L.
AU  - Seo, J.
AU  - Toniazzo, T.
AU  - Wei, H.-H.
AU  - Yoshimori, M.
AU  - Zeppetello, L. R. V.
PY  - 2016
TI  - The tropical rain belts with an annual cycle and a continent model intercomparison project: TRACMIP
JA  - J. Adv. Model. Earth Syst.
VL  - 8
IS  - 4
SP  - 1868
EP  - 1891
DO  - 10.1002/2016MS000748
ER  -

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