Simulation study demonstrates vertical resolution intensifies kinetic energy transfer across atmospheric scales, highlighting its critical role in upper-tropospheric kinematics.
Key Points
To assess how variations in vertical and horizontal model grid resolution influence scale interactions and kinetic energy distribution in global weather simulations.
Conducted 40-day atmospheric simulations using the Model for Prediction Across Scales (MPAS).
Systematically adjusted both horizontal and vertical grid spacing to measure effects on mesoscale and synoptic-scale dynamics.
Horizontal resolution refinement exhibited minimal impact on kinetic energy across mesoscale wavelengths.
Vertical resolution refinement intensified kinetic energy transfer between mesoscales and synoptic scales, an effect spatially coupled with Rossby wave-like patterns.
Vertical grid spacing substantially altered the mesoscale kinetic energy spectrum and the kinematics of the mid-latitude upper troposphere.