Verification of the regional atmospheric model CCLM v5.0 with conventional data and lidar measurements in Antarctica

Zentek, Rolf; Heinemann, Günther

doi:https://doi.org/10.5194/gmd-13-1809-2020

Articles | Volume 13, issue 4

https://doi.org/10.5194/gmd-13-1809-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-13-1809-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 13, issue 4

Model evaluation paper

|

06 Apr 2020

Model evaluation paper |

| 06 Apr 2020

Verification of the regional atmospheric model CCLM v5.0 with conventional data and lidar measurements in Antarctica

Rolf Zentek and Günther Heinemann

Supplement

https://doi.org/10.5194/gmd-13-1809-2020-supplement

Data sets

CCLM simulation (Antarctica 2002-2016) - selected data R. Zentek and G. Heinemann https://doi.org/10.5281/zenodo.3355401

Model code and software

CCLM simulation (Antarctica 2002-2016) - model source codes and domain files R. Zentek and G. Heinemann https://doi.org/10.5281/zenodo.3355411

CCLM simulation (Antarctica 2002-2016) - scripts and configuration files R. Zentek and G. Heinemann https://doi.org/10.5281/zenodo.3339363

CCLM simulation (Antarctica 2002-2016) - analysis and plotting scripts R. Zentek and G. Heinemann https://doi.org/10.5281/zenodo.3361625

Short summary

We used the climate model CCLM to simulate the Weddell Sea region with a resolutions of 15 and 5 km. By adjusting the turbulence parametrization a warm bias over the Antarctic Plateau was removed. For sea ice we found a temperature bias around +/-1 K and a wind speed bias of 1 m s^-1. Comparisons of radio soundings showed a bias around zero and a RMSE of 1–2 K for temperature and 3–4 m s^-1 for wind speed. Comparison with wind Doppler lidar yielded almost no bias and a RMSE of ca. 2 m s^-1.