Publications

QES-Plume v1.0: a Lagrangian dispersion model
Low-cost simulations providing accurate predictions of transport of airborne material in urban areas, vegetative canopies, and complex …
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A method for generating a quasi-linear convective system suitable for observing system simulation experiments
To understand the impact of different assimilated observations on convection-allowing model forecast skill, a diverse range of …
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Inclination angles of turbulent structures in stably stratified boundary layers
There is a rich history of studying coherent structures in the atmospheric boundary layer through the use of spatial correlations …
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QES-Fire: a dynamically coupled fast-response wildfire model
A microscale wildfire model, QES-Fire, that dynamically couples the fire front to microscale winds was developed using a simplified …
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Utilizing dynamic parallelism in CUDA to accelerate a 3D red-black successive over relaxation wind-field solver
QES-Winds is a fast-response wind modeling platform for simulating high-resolution mean wind fields for optimization and prediction. …
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Large-Eddy Simulation of the Atmospheric Boundary Layer
Over the last 50 years the large-eddy simulation (LES) technique has developed into one of the most prominent numerical tools used to …
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Structure functions and structure parameters of velocity fluctuations in numerically simulated atmospheric convective boundary layer flows
We extend our previous study, which dealt with structure functions of potential temperature fluctuations, and focus on the …
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Current and Future Uses of UAS for Improved Forecasts/Warnings and Scientific Studies
Unmanned aircraft systems (UASs) provide unique observations not readily available from piloted aircraft or ground- and satellite-based …
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On the evaluation of the proportionality coefficient between the turbulence temperature spectrum and structure parameter
The turbulence temperature spectrum and structure parameter are related through a widely-adopted proportionality coefficient. We …
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Assessing systematic impacts of PBL schemes on storm evolution in the NOAA Warn-on-Forecast System
The NOAA Warn-on-Forecast System (WoFS) is an experimental rapidly-updating convection-allowing ensemble designed to provide …
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The Great Plains low-level jet during PECAN: observed and simulated characteristics
During the 2015 Plains Elevated Convection At Night (PECAN) field campaign, several nocturnal low-level jets (NLLJs) were observed with …
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WRF model study of the Great Plains low-level jet: effects of grid spacing and boundary layer parameterization
Previous studies have shown that the Weather Research and Forecasting (WRF) model often under-predicts the strength of the Great Plains …
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MicroHH 1.0: a computational fluid dynamics code for direct numerical simulation and large-eddy simulation of atmospheric boundary layer flows
This paper describes MicroHH 1.0, a new and open-source (www.microhh.org) computational fluid dynamics code for the simulation of …
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Numerical study of nocturnal low-level jets over gently sloping terrain
Nocturnal low level-jets (LLJs) over gently sloping terrain typical of the U.S. Great Plains are investigated by means of direct …
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Sensitivity of turbulence statistics in the lower portion of a numerically simulated stable boundary layer to parameters of the Deardorff subgrid turbulence model
Some 36 years following its creation, the Deardorff 1980 (D80) subgrid turbulence model is perhaps still the most ubiquitous scheme …
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Comparison of Direct and Spectral Methods for Evaluation of the Temperature Structure Parameter in Numerically Simulated Convective Boundary Layer Flows
In many engineering and meteorological applications, atmospheric turbulence within the planetary boundary layer is described in terms …
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Measurements of the Temperature Structure-Function Parameters with a Small Unmanned Aerial System Compared with a Sodar
The structure function is often used to quantify the intensity of spatial inhomogeneities within turbulent flows. Here, the Small …
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An Analytical Verification Test for Numerically Simulated Convective Flow Above a Thermally Heterogeneous Surface
An analytical solution of the Boussinesq equations for the motion of a viscous stably stratified fluid driven by a surface thermal …
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Methods for Evaluating the Temperature Structure-Function Parameter Using Unmanned Aerial Systems and Large-Eddy Simulation
Small-scale turbulent fluctuations of temperature are known to affect the propagation of both electromagnetic and acoustic waves. …
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Revisiting Surface Heat-Flux and Temperature Boundary Conditions in Models of Stably Stratified Boundary-Layer Flows
Two formulations of the surface thermal boundary condition commonly employed in numerical modelling of atmospheric stably stratified …
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Effects of Temporal Discretization on Turbulence Statistics and Spectra in Numerically Simulated Convective Boundary Layers
Six state-of-the-art large-eddy simulation codes were compared in Fedorovich et al. (Preprints, 16th American Meteorological Society …
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A Time Series Sodar Simulator Based on Large-Eddy Simulation
A sodar simulator capable of producing time series data emulating sodar signals has been developed and tested. The atmospheric fields …
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Comparison of Convective Boundary Layer Velocity Spectra Retrieved from Large-Eddy-Simulation and Weather Research and Forecasting Model Data
As computing capabilities expand, operational and research environments are moving toward the use of finescale atmospheric numerical …
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Evaluating Weather Research and Forecasting (WRF) model predictions of turbulent flow parameters in a dry convective boundary layer
Weather Research and Forecasting (WRF) model predictions using different boundary layer schemes and horizontal grid spacings were …
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