12:00 PM - 12:15 PM
[AAS04-06] ECOMIP: a new atmospheric model intercomparison project with validation data from EarthCARE and the ORCESTRA field campaig
Keywords:EarthCARE, ORCESTRA, Model intercomparison project, Global storm-resolving model
EarthCARE presents exciting new opportunities to evaluate and improve the representation of clouds, aerosols, precipitation, and radiation in atmospheric models at the scale of individual storms. To leverage these capabilities, we propose the EarthCARE-ORCHESTRA Model Intercomparison Project (ECOMIP), focusing on the ORCESTRA field campaign period from August 9 to September 29, 2024.
Our experimental design consists of evaluating models using EarthCARE data in both observation space—via satellite simulators (radar reflectivity, Doppler velocity, and lidar Mie and Rayleigh channels)—and model space, by comparing modeled radiative fluxes with observed retrievals of key variables such as water content, particle size, and precipitation rate.
We propose two types of experiments: (1) Short-term simulations: 2-day forecasts initialized daily from August 9 to September 29, 2024, with select days of special focus. These simulations will be directly compared to observations on the second day. (2) Long-term free runs: Continuous 2-month simulations (August–September 2024) evaluated statistically using contoured frequency by altitude diagrams (CFADs) and other diagnostics. Model output will be extracted both as a “curtain” along EarthCARE’s track and within a 3D domain over the central Atlantic, where the ORCESTRA campaign took place.
Currently, we are coordinating over 10 modeling groups interested in participating in ECOMIP. We welcome additional participants, including teams using global storm-resolving models (less than 5 km horizontal mesh scale), global weather and air-quality models, regional km-scale models, and conventional climate models.
Our experimental design consists of evaluating models using EarthCARE data in both observation space—via satellite simulators (radar reflectivity, Doppler velocity, and lidar Mie and Rayleigh channels)—and model space, by comparing modeled radiative fluxes with observed retrievals of key variables such as water content, particle size, and precipitation rate.
We propose two types of experiments: (1) Short-term simulations: 2-day forecasts initialized daily from August 9 to September 29, 2024, with select days of special focus. These simulations will be directly compared to observations on the second day. (2) Long-term free runs: Continuous 2-month simulations (August–September 2024) evaluated statistically using contoured frequency by altitude diagrams (CFADs) and other diagnostics. Model output will be extracted both as a “curtain” along EarthCARE’s track and within a 3D domain over the central Atlantic, where the ORCESTRA campaign took place.
Currently, we are coordinating over 10 modeling groups interested in participating in ECOMIP. We welcome additional participants, including teams using global storm-resolving models (less than 5 km horizontal mesh scale), global weather and air-quality models, regional km-scale models, and conventional climate models.