MOSAIK

Timestamp:

May 17, 2022 8:16:54 AM (2 years ago)

Author:

westbrink

Comment:

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ummip

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 The model intercomparison encompasses models based on Reynolds-Averaged Navier-Stokes (RANS) equations and turbulence-resolving Large-Eddy Simulation (LES) models.
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+== Study design ==
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+Therefore, we aim at a sophisticated model intercomparison project following a two-step design. The first phase of UMMIP (UMMIP-1) shall shed light on the performance of different numerical models to resolve micro-scale atmospheric processes in urban environments under controlled conditions with well-defined reference data sets. The second phase of UMMIP (UMMIP-2) will be a follow-on activity where model performance will be tested using reference data from quality-controlled field observations. Since UMMIP-2 is a highly complex activity that needs both realistic atmospheric initial and boundary conditions as well as reference data with known errors, we will start with UMMIP-1 before setting up the UMMIP-2.
+UMMIP-1 aims at providing a comprehensive data set based on multi-model simulations for well-defined set-ups in urban environments. The complexity of the set-ups is increased in several stages based on existing and newly-developed set-ups suitable to be simulated by most of the participating models. UMMIP-1 aims at showing how much the simulation results differ between individual models and therefore will provide an educated estimation of the reliability of urban microscale models. Uncertainties that do not arise from insufficiently accurate input data (like building shape, wall and roof mounting, distribution of vegetation, etc.) or external forcings but from model numerics and physical parameterizations are to be investigated.
+UMMIP-1 encompasses numerical models based on Reynolds-Averaged Navier-Stokes (RANS) equations and turbulence-resolving Large-Eddy Simulation (LES) models. The study area is the well-known Michel-Stadt area.
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 == Stages ==