CL
Climate: Past, Present & Future

Clarissa Kroll

Clarissa Kroll currently holds a Postdoctoral Fellowship from ETH Zurich. She earned her PhD at the Max Planck Institute for Meteorology in Hamburg, where she studied how volcanic eruptions affect stratospheric water vapor and deep convection. Her research focuses on climate dynamics, with a particular interest in tropical convection and the processes that link small‑scale atmospheric phenomena to large‑scale climate patterns. She is actively involved in the development of the ICON model, leading efforts for the uncoupled high-resolution configuration of ICON XPP and contributing to the EXCLAIM initiative at ETH targeting a GPU ported version of ICON.

When small-scale turbulence imprints on the global atmospheric circulation: Uncovering the Cause of the Double Intertropical Convergence Zone Bias in ICON

, , , and January 12, 2026
When small-scale turbulence imprints on the global atmospheric circulation: Uncovering the Cause of the Double Intertropical Convergence Zone Bias in ICON

One feature stands out in any map of tropical rainfall from satellites: a narrow band of intense precipitation encircling the globe near the equator. This is the Intertropical Convergence Zone, a key feature of the global atmospheric circulation that imports moisture into the tropics and exports energy to higher latitudes. But for decades, climate models have struggled to simulate this feature cor ...[Read More]