Advancing the capabilities for efficient hurricane-centric simulations with the atmospheric model ICON

Resolution Dependence of the Climate Feedback Parameter in Km‐Scale Climate Models

Global storm‐resolving models (GSRMs) provide new opportunities to investigate the climate response to warming with explicitly resolved deep convection. However, the limited number of existing studies has so far precluded the systematic assessment of similarities and differences across GSRMs. Here, we compare the Ces...

In what mesoscale environments do orographic supercells form?

The present study investigates potential orographic modifications of mesoscale environments by analyzing prestorm conditions associated with 62 supercells initiated near the Carpathian Mountains in Central Europe during April–September 2015–2019. Environmental diagnostics are derived from three data sources: high-res...

Multi-model high-resolution analysis of Tropical-Like Cyclone Daniel with WRF and ICON: peculiarities and sensitivity to convection schemes

Abstract. Medicane Daniel (September 2023) featured a multi-stage transition from a baroclinic disturbance to a compact tropical-like vortex, culminating in a rapid barotropic alignment on 9 September, challenging short-range prediction. This study delivers a side-by-side, high-resolution (∼ 2 km) assessment of Daniel...

Kilometer-Scale AI Downscaling of Atlantic Hurricanes with Generative Ensembles

This study presents an AI-based dynamical downscaling system for Tropical Cyclones (TCs). The system incorporates an AI-based limited-area model that downscales 3-hourly low-resolution boundary forcings into hourly high-resolution fields autoregressively, and a diffusion model that converts the outputs into ensembles o...

The LASSO‐CACTI Library of Deep Convection Simulations for Córdoba, Argentina: Overview of Mesoscale and Large‐Eddy Simulations

The U.S. Department of Energy Atmospheric Radiation Measurement (ARM) User Facility recently released ensembles of high‐resolution atmospheric simulations of deep convection to complement ARM's measurements. These simulations are from the Large‐Eddy Simulation (LES) ARM Symbiotic Simulation and Observation (LASSO) ac...

Towards high-fidelity simulations of coastal submesoscale baroclinic instabilities with MPAS–O (vE3SM3.0.0) – Part 2: Realistic experiments