Presentation, calibration and testing of the DCESS II Earth system model of intermediate complexity (version 1.0)

Fernández Villanueva, Esteban; Shaffer, Gary

doi:https://doi.org/10.5194/gmd-18-2161-2025

Articles | Volume 18, issue 7

https://doi.org/10.5194/gmd-18-2161-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-18-2161-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 7

Model description paper

|

08 Apr 2025

Model description paper |

| 08 Apr 2025

Presentation, calibration and testing of the DCESS II Earth system model of intermediate complexity (version 1.0)

Esteban Fernández Villanueva and Gary Shaffer

Data sets

Global Ocean Data Analysis Project version 2.2022 (GLODAPv2.2022) Lauvset, S. K., Lange, N., Tanhua, T., Bittig, H. C., Olsen, A., Kozyr, A., Alin, S. R., Álvarez, M., Azetsu-Scott, K., Barbero, L., Becker, S., Brown, P. J., Carter, B. R., Cotrim da Cunha, L., Feely, R. A., Hoppema, M., Humphreys, M. P., Ishii, M., Jeansson, E., Jiang, L. Q., Jones, S. D., Lo Monaco, C., Murata, A., Müller, J. D., Pérez, F. F., Pfeil, B., Schirnick, C., Steinfeldt, R., Suzuki, T., Tilbrook, B., Ulfsbo, A., Velo, A., Woosley, R. J., and Key, R. M. https://doi.org/10.25921/1f4w-0t92

Global Seawater Oxygen-18 Database - v1.22 Gavin Schmidt, Grant Bigg and Eelco Rohling https://data.giss.nasa.gov/o18data/

Sea Ice Index, Version 3 Fetterer, F., Knowles, K., Meier, W. N., Savoie, M., and Windnagel, A. K. https://doi.org/10.7265/N5K072F8

Model code and software

DCESS II model v1.0 Esteban Fernández Villanueva https://doi.org/10.5281/zenodo.13738105

Short summary

We describe, calibrate and test the Danish Center for Earth System Science (DCESS) II model, a new, broad, adaptable and fast Earth system model. DCESS II is designed for global simulations over timescales of years to millions of years using limited computer resources like a personal computer. With its flexibility and comprehensive treatment of the global carbon cycle, DCESS II is a useful, computationally friendly tool for simulations of past climates as well as for future Earth system projections.