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The tropical rain belts with an annual cycle and a continent model intercomparison project: TRACMIP

Voigt, A. 1,2; Biasutti, M.; Scheff, J.; Bader, J.; Bordoni, S.; Codron, F.; Dixon, R. D.; Jonas, J.; Kang, S. M.; Klingaman, N. P.; Leung, R.; Lu, J.; Mapes, B.; Maroon, E. A.; Mcdermid, S.; Park, J.-y.; Roehrig, R.; Rose, B. E. J.; Russell, G. L.; ... mehr

Abstract:

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 CO$_{2}$ leads to a northward ITCZ shift and preferential warming in Northern high latitudes. The simulations show interesting CO$_{2}$-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 CO$_{2}$; for example, it reduces the northward ITCZ shift associated with warming and, in some models, climate sensitivity. ... mehr


Volltext §
DOI: 10.5445/IR/1000065705
Originalveröffentlichung
DOI: 10.1002/2016MS000748
Scopus
Zitationen: 54
Web of Science
Zitationen: 53
Dimensions
Zitationen: 54
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung Troposphärenforschung (IMKTRO)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2016
Sprache Englisch
Identifikator ISSN: 1942-2466
urn:nbn:de:swb:90-657057
KITopen-ID: 1000065705
HGF-Programm 12.01.02 (POF III, LK 01) Proc.res.f.multisc.predictab.of weather
Erschienen in Journal of advances in modeling earth systems
Verlag American Geophysical Union (AGU)
Band 8
Heft 4
Seiten 1868-1891
Nachgewiesen in Dimensions
Web of Science
Scopus
Globale Ziele für nachhaltige Entwicklung Ziel 13 – Maßnahmen zum Klimaschutz
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
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