2010/11/08 by Igor Esau, Esau, Igor · 1 citation
Earth and Planetary Sciences · Environmental Science · #Atmospheric and Environmental Gas Dynamics #Atmospheric and Oceanic Physics (physics.ao-ph) #FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #Meteorological Phenomena and Simulations #Wind and Air Flow Studies
paper · pdf · doi:10.48550/arxiv.1011.1815
openalex publication_date 2010/11/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Observational studies of a planetary boundary layer (PBL) are difficult.\nGround-born measurements usually characterize only a small portion of the PBL\nimmediately above the surface. Air-born measurements cannot be obtained close\nto the surface and therefore cannot capture any significant portion of the PBL\ninterior. Moreover, observations are limited in choice of instrumentation,\ntime, duration, location of measurements and occasional weather conditions.\nAlthough turbulence-resolving simulations with a large-eddy simulation (LES)\ncode do not supplant observational studies, they provide valuable complementary\ninformation on different aspect of the PBL dynamics, which otherwise difficult\nto acquire. These circumstances motivated development of a medium-resolution\ndatabase (DATABASE64) of turbulence-resolving simulations, which is available\non ftp://ftp.nersc.no/igor/. DATABASE64 covers a range of physical parameters\ntypical for the barotropic SBL over a homogeneous rough surface. LES runs in\nDATABASE64 simulate 16 hours' evolution of the PBL turbulence. They are\nutilized to study both transition and equilibrium SBL cases as well as to\ncalibrate turbulence parameterizations of meteorological models. The data can\nbe also used to falsify theoretical constructions with regards to the PBL.\n