The incorporation of the Tripleclouds concept into the <i>δ</i>-Eddington two-stream radiation scheme: solver characterization and its application to shallow cumulus clouds

Črnivec, Nina; Mayer, Bernhard

doi:https://doi.org/10.5194/acp-20-10733-2020

Articles | Volume 20, issue 17

https://doi.org/10.5194/acp-20-10733-2020

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

https://doi.org/10.5194/acp-20-10733-2020

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

Articles | Volume 20, issue 17

Research article

|

14 Sep 2020

Research article |

| 14 Sep 2020

The incorporation of the Tripleclouds concept into the δ-Eddington two-stream radiation scheme: solver characterization and its application to shallow cumulus clouds

Nina Črnivec and Bernhard Mayer

Model code and software

Open-source UCLA-LES model UCLA-LES https://github.com/uclales

libRadtran B. Mayer, C. Emde, J. Gasteiger, and A. Kylling http://www.libradtran.org

Short summary

Unresolved interaction between clouds and atmospheric radiation is a source of uncertainty in weather and climate models. The present study highlights the potential of the state-of-the-art Tripleclouds radiative solver for shallow cumulus clouds, exposing the significance of properly representing subgrid cloud horizontal heterogeneity. The Tripleclouds concept was thereby incorporated in the widely employed δ-Eddington two-stream radiation scheme within the comprehensive libRadtran library.