edu.ucar.opensky::articles:26553 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-24T19:28:56.387462 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7v41087 https://doi.org/10.5065/D6959G0N https Related Dataset #1 NCAR/EOL 5 minute Quality Controlled ISFS data, tilt corrected sonic array. Version 1.0 https://doi.org/10.5065/D6RX99HX https Related Service #1 Cheyenne: SGI ICE XA Cluster Stable boundary layers and subfilter-scale motions 2023-07-01T00:00:00Z publication https://n2t.org/ark:/85065/d7v41087 https://doi.org/10.3390/atmos14071107 McWilliams, J. C. author Meneveau, C. author Patton, Edward G. author Sullivan, Peter P. author UCAR/NCAR - Library publisher Recent high-resolution large-eddy simulations (LES) of a stable atmospheric boundary layer (SBL) with mesh sizes ğ�'�=(5123,10243,20483) or mesh spacings â–³=(0.78,0.39,0.2) m are analyzed. The LES solutions are judged to be converged based on the good collapse of vertical profiles of mean winds, temperature, and low-order turbulence moments, i.e., fluxes and variances, with increasing N. The largest discrepancy is in the stably stratified region above the low-level jet. Subfilter-scale (SFS) motions are extracted from the LES with ğ�'�=20483 and are compared to sonic anemometer fields from the horizontal array turbulence study (HATS) and its sequel over the ocean (OHATS). The results from the simulation and observations are compared using the dimensionless resolution ratio Λğ�'¤/â–³ğ�'" where â–³ğ�'" is the filter width and Λğ�'¤ is a characteristic scale of the energy-containing eddies in vertical velocity. The SFS motions from the observations and LES span the ranges 0.1<Λğ�'¤/â–³ğ�'"<20 and are in good agreement. The small, medium, and large range of Λğ�'¤/â–³ğ�'" correspond to Reynolds-averaged Navier-Stokes (RANS), the gray zone (a.k.a. "Terra Incognita-), and fine-resolution LES. The gray zone cuts across the peak in the energy spectrum and then flux parameterizations need to be adaptive and account for partially resolved flux but also "stochastic- flux fluctuations that represent the turbulent correlation between the fluctuating rate of strain and SFS flux tensors. LES data with mesh 20483 will be made available to the research community through the web and tools provided by the Johns Hopkins University Turbulence Database. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. None eng geoscientificInformation