Moist convective boundary layer (IHOP) ============================================================ Case description ---------------- The International H2O Project (IHOP) case simulates a moist convective boundary layer based on the IHOP_2002 field campaign :cite:t:`weckwerth_overview_2004`. This case is used to evaluate boundary layer parameterizations under realistic large-scale forcing conditions, including geostrophic wind and large-scale vertical motion. It exists in two configurations: a 1D single-column mode and a 3D Large Eddy Simulation. .. warning:: The 3D configuration requires MPI parallelization and the 1D configuration can only be run on a single core. .. note:: You can find the workflow as well as the namelists and the scripts to launch this case here : .. treeview:: - :dir:`folder` |MNH_directory_extract_current|/examples/integration_cases/hpc/IHOP - :dir:`folder` 1D : directory to prepare and run the 1D configuration - :dir:`folder` 3D : directory to prepare and run the 3D configuration - :dir:`folder` PYTHON : directory to plot the figure The different steps must be performed in the order indicated by the directory numbers. Numerical set-up ---------------- .. tab-set:: .. tab-item:: Grids .. list-table:: :header-rows: 1 :widths: 40 30 30 * - Parameter - 1D - 3D * - Domain - Cartesian flat domain - Cartesian flat domain * - Horizontal grid - 1 x 1 pt (1D) - 256 x 256 pt * - Horizontal resolution - 1000 m - 50 m * - Vertical levels - 90 - 90 .. tab-item:: Dynamics .. list-table:: :header-rows: 1 :widths: 40 30 30 * - Parameter - 1D - 3D * - Integration length - 43200 s (12 h) - 43200 s (12 h) * - Time step - 60 s - 1 s * - Coriolis force - Enabled - Enabled * - Lateral boundary condition - Cyclic - Cyclic .. tab-item:: Physics .. list-table:: :header-rows: 1 :widths: 40 30 30 * - Scheme - 1D - 3D * - Turbulence - TKEL (1D, BL89) - TKEL (3D) * - Cloud microphysics - LIMA - LIMA * - Shallow convection - EDKF - NONE * - Deep convection - NONE - NONE * - Radiation - NONE - NONE .. tab-item:: Forcings .. list-table:: :header-rows: 1 :widths: 50 50 * - Parameter - Value * - Large-scale forcing - Geostrophic forcing + large-scale vertical motion .. tab-item:: Diagnostics .. list-table:: :header-rows: 1 :widths: 50 50 * - Parameter - Value * - LES diagnostics - Enabled Validation ---------------- - Boundary layer height evolution - Heat and moisture budgets - Cloud fraction - Vertical velocity profiles