Sensitivity of deep ocean biases to horizontal resolution in prototype CMIP6 simulations with AWI-CM1.0

Rackow, Thomas; Sein, Dmitry V.; Semmler, Tido; Danilov, Sergey; Koldunov, Nikolay V.; Sidorenko, Dmitry; Wang, Qiang; Jung, Thomas

doi:https://doi.org/10.5194/gmd-12-2635-2019

Articles | Volume 12, issue 7

https://doi.org/10.5194/gmd-12-2635-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-12-2635-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 12, issue 7

Model evaluation paper

|

05 Jul 2019

Model evaluation paper |

| 05 Jul 2019

Sensitivity of deep ocean biases to horizontal resolution in prototype CMIP6 simulations with AWI-CM1.0

Thomas Rackow, Dmitry V. Sein, Tido Semmler, Sergey Danilov, Nikolay V. Koldunov, Dmitry Sidorenko, Qiang Wang, and Thomas Jung

Model code and software

The AWI Climate Model (AWI-CM), version 1.0 T. Rackow, D. Sein, T. Semmler, S. Danilov, N. Koldunov, D. Sidorenko, Q. Wang, and T. Jung https://doi.org/10.5281/zenodo.1342014

Video supplement

Sensitivity of deep ocean biases to horizontal resolution in prototype CMIP6 simulations: video supplements T. Rackow, D. Sein, T. Semmler, S. Danilov, N. Koldunov, D. Sidorenko, Q. Wang, and T. Jung https://doi.org/10.5281/zenodo.2483055

Short summary

Current climate models show errors in the deep ocean that are larger than the level of natural variability and the response to enhanced greenhouse gas concentrations. These errors are larger than the signals we aim to predict. With the AWI Climate Model, we show that increasing resolution to resolve eddies can lead to major reductions in deep ocean errors. AWI's next-generation (CMIP6) model configuration will thus use locally eddy-resolving computational grids for projecting climate change.