Articles | Volume 8, issue 7
Model description paper
23 Jul 2015
Model description paper |  | 23 Jul 2015

The integrated Earth system model version 1: formulation and functionality

W. D. Collins, A. P. Craig, J. E. Truesdale, A. V. Di Vittorio, A. D. Jones, B. Bond-Lamberty, K. V. Calvin, J. A. Edmonds, S. H. Kim, A. M. Thomson, P. Patel, Y. Zhou, J. Mao, X. Shi, P. E. Thornton, L. P. Chini, and G. C. Hurtt

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Cited articles

Bond-Lamberty, B., Calvin, K., Jones, A. D., Mao, J., Patel, P., Shi, X. Y., Thomson, A., Thornton, P., and Zhou, Y.: On linking an Earth system model to the equilibrium carbon representation of an economically optimizing land use model, Geosci. Model Dev., 7, 2545–2555,, 2014.
Brovkin, V., Boysen, L., Arora, V. K., Boisier, J. P., Cadule, P., Chini, L., Claussen, M., Friedlingstein, P., Gayler, V., van den Hurk, B. J. J. M., Hurtt, G. C., Jones, C. D., Kato, E., de Noblet-Ducoudré, N., Pacifico, F., Pongratz, J., and Weiss, M.: Effect of anthropogenic land-use and land-cover changes on climate and land carbon storage in CMIP5 projections for the twenty-first century, J. Climate, 26, 6859–6881,, 2013.
Calvin, K. V.: GCAM Wiki Documentation, available at: (last access: 21 August 2012), 2011.
CCSP: The Effects of Climate Change on Agriculture, Land Resources, Water Resources, and Biodiversity, a Report by the US Climate Change Science Program and the Subcommittee on Global Change Research, edited by: Backlund, P., Janetos, A., Schimel, D., Hatfield, J., Boote, K., Fay, P., Hahn, L., Izaurralde, C., Kimball, B. A., Mader, T., Morgan, J., Ort, D., Polley, W., Thomson, A., Wolfe, D., Ryan, M., Archer, S., Birdsey, R., Dahm, C., Heath, L., Hicke, J., Hollinger, D., Huxman, T., Okin, G., Oren, R., Randerson, J., Schlesinger, W., Lettenmaier, D., Major, D., Poff, L., Running, S., Hansen, L., Inouye, D., Kelly, B. P., Meyerson, L., Peterson, B., and Shaw, R., US Environmental Protection Agency, Washington, D.C., 362 pp., 2008.
Chaturvedi, V., Kim, S., Smith, S. J., Clarke, L., Yuyu, Z., Kyle, P., and Patel, P.: Model evaluation and hindcasting: An experiment with an integrated assessment model, Energy, 61, 479–490,, 2013.
Short summary
The integrated Earth system model (iESM) has been developed as a new tool for projecting the joint human-climate system. The iESM is based upon coupling an integrated assessment model (IAM) and an Earth system model (ESM) into a common modeling infrastructure. By introducing heretofore-omitted feedbacks between natural and societal drivers in iESM, we can improve scientific understanding of the human-Earth system dynamics.