Numerical Prediction of Submesoscale Flow in the Nocturnal Stable Boundary Layer over Complex Terrain

AbstractNumerical weather prediction models often perform poorly for weakly forced, highly variable winds in nocturnal stable boundary layers (SBLs). When used as input to air-quality and dispersion models, these wind errors can lead to large errors in subsequent plume forecasts. Finer grid resolution and improved model numerics and physics can help reduce these errors. The Advanced Research Weather Research and Forecasting model (ARW-WRF) has higher-order numerics that may improve predictions of finescale winds (scales <~20 km) in nocturnal SBLs. However, better understanding of the physics controlling SBL flow is needed to take optimal advantage of advanced modeling capabilities.To facilitate ARW-WRF evaluations, a small network of instrumented towers was deployed in the ridge-and-valley topography of central Pennsylvania (PA). Time series of local observations and model forecasts on 1.333- and 0.444-km grids were filtered to isolate deterministic lower-frequency wind components. The time-filtered SBL w...

[1]  Semion Sukoriansky,et al.  A quasi-normal scale elimination model of turbulence and its application to stably stratified flows , 2006 .

[2]  S. J. Weiss,et al.  Examination of convection-allowing configurations of the WRF model for the prediction of severe convective weather : The SPC/NSSL spring program 2004 , 2006 .

[3]  L. Mahrt.  Weak-wind mesoscale meandering in the nocturnal boundary layer , 2007 .

[4]  W. S. Lewellen,et al.  Numerical Simulation of ANATEX Tracer Data Using a Turbulence Closure Model for Long-Range Dispersion , 1993 .

[5]  B. Gaudet,et al.  Interaction of a mountain lee wave with a basin cold pool , 2009 .

[6]  L. Mahrt,et al.  Evaluating Formulations of Stable Boundary Layer Height , 2004 .

[7]  Song-Lak Kang,et al.  The Effects of Mesoscale Surface Heterogeneity on the Fair-Weather Convective Atmospheric Boundary Layer , 2008 .

[8]  A. Holtslag,et al.  Single-Column Model Intercomparison for a Stably Stratified Atmospheric Boundary Layer , 2004 .

[9]  D. Etling.  On plume meandering under stable stratification , 1990 .

[10]  S. Hanna.  Lateral Turbulence Intensity and Plume Meandering During Stable Conditions. , 1983 .

[11]  Dean Vickers,et al.  Contrasting vertical structures of nocturnal boundary layers , 2002 .

[12]  Larry Mahrt,et al.  Nocturnal Boundary-Layer Regimes , 1998 .

[13]  Christopher A. Davis,et al.  Verification of Temporal Variations in Mesoscale Numerical Wind Forecasts , 2005 .

[14]  Gert-Jan Steeneveld,et al.  Diagnostic Equations for the Stable Boundary Layer Height: Evaluation and Dimensional Analysis , 2007 .

[15]  D. Stauffer,et al.  Evaluation of Interregional Transport Using the MM5-SCIPUFF System , 2004 .

[16]  D. Belušić,et al.  Estimation of length scales from mesoscale networks , 2008 .

[17]  William E. Eichinger,et al.  Analysis of Ducted Motions in the Stable Nocturnal Boundary Layer during CASES-99 , 2003 .

[18]  J. Wyngaard,et al.  A Model Study of the Stably Stratified Planetary Boundary Layer , 1978 .

[19]  Dietmar Oettl,et al.  An Analysis of Sonic Anemometer Observations In Low Wind Speed Conditions , 2005 .

[20]  Edward V. Browell,et al.  A Case Study on the Effects of Heterogeneous Soil Moisture on Mesoscale Boundary-Layer Structure in the Southern Great Plains, U.S.A. Part I: Simple Prognostic Model , 2006 .

[21]  Sandrine Anquetin,et al.  Climatology of Cities , 1995 .

[22]  J. Smagorinsky,et al.  GENERAL CIRCULATION EXPERIMENTS WITH THE PRIMITIVE EQUATIONS , 1963 .

[23]  George S. Young,et al.  An automated high-resolution, rapidly relocatable meteorological nowcasting and prediction system , 2006 .

[24]  L. Mahrt.  Stratified Atmospheric Boundary Layers and Breakdown of Models , 1998 .

[25]  Sue Ellen Haupt,et al.  Ensemble Variance Calibration for Representing Meteorological Uncertainty for Atmospheric Transport and Dispersion Modeling , 2009 .

[26]  John S. Kain,et al.  Multiscale Convective Overturning in Mesoscale Convective Systems: Reconciling Observations, Simulations, and Theory , 1998 .

[27]  R. Pielke,et al.  The Interaction of Katabatic Flow and Mountain Waves. Part I: Observations and Idealized Simulations , 2000 .

[28]  Steven E. Koch,et al.  An Overview of the International H2O Project (IHOP_2002) and Some Preliminary Highlights , 2004 .

[29]  Jielun Sun,et al.  The Very Stable Boundary Layer on Nights with Weak Low-Level Jets , 2007 .

[30]  David R. Miller,et al.  Plume meander and dispersion in a stable boundary layer , 2010 .

[31]  J. Cuxart,et al.  Mixing processes in a nocturnal low-level jet : An LES study , 2007 .

[32]  G. Grell,et al.  A description of the fifth-generation Penn State/NCAR Mesoscale Model (MM5) , 1994 .

[33]  C. Nappo.  An introduction to atmospheric gravity waves , 2002 .

[34]  F. Martin Ralph,et al.  Improving Short-Term (0–48 h) Cool-Season Quantitative Precipitation Forecasting: Recommendations from a USWRP Workshop , 2005 .

[35]  L. Mahrt.  Characteristics of Submeso Winds in the Stable Boundary Layer , 2009 .

[36]  Turker Ince,et al.  Intermittent Turbulence Associated with a Density Current Passage in the Stable Boundary Layer , 2002 .

[37]  A. Smedman,et al.  Observations of a multi-level turbulence structure in a very stable atmospheric boundary layer , 1988 .

[38]  S. Söderberg,et al.  Numerical Modelling of Katabatic Flow Over a Melting Outflow Glacier , 2006 .

[39]  J. Prueger,et al.  Space–time structure of mesoscale motions in the stable boundary layer , 2009 .

[40]  Zaviša I. Janić.  Nonsingular implementation of the Mellor-Yamada level 2.5 scheme in the NCEP Meso model , 2001 .

[41]  Mesoscale wind direction shifts in the stable boundary-layer , 2008 .

[42]  W. Skamarock.  Evaluating Mesoscale NWP Models Using Kinetic Energy Spectra , 2004 .

[43]  Steven E. Koch,et al.  MULTIFUNCTIONAL MESOSCALE OBSERVING NETWORKS , 2005 .

[44]  J. Dudhia,et al.  Coupling an Advanced Land Surface–Hydrology Model with the Penn State–NCAR MM5 Modeling System. Part II: Preliminary Model Validation , 2001 .

[45]  C. Davis,et al.  Predictability of Low-Level Winds by Mesoscale Meteorological Models , 2004 .

[46]  Kenneth J. Westrick,et al.  Does Increasing Horizontal Resolution Produce More Skillful Forecasts , 2002 .

[47]  David J. Stensrud,et al.  Explicit Cloud-Scale Models for Operational Forecasts: A Note of Caution , 2002 .

[48]  J. Cuxart,et al.  Nocturnal meso-beta basin and katabatic flows on a midlatitude island , 2007 .

[49]  J. Dudhia,et al.  Coupling an Advanced Land Surface–Hydrology Model with the Penn State–NCAR MM5 Modeling System. Part I: Model Implementation and Sensitivity , 2001 .

[50]  J. Lumley,et al.  A First Course in Turbulence , 1972 .

[51]  Horizontal diffusion by submeso motions in the stable boundary layer , 2009 .

[52]  Albert A. M. Holtslag,et al.  Intermittent Turbulence in the Stable Boundary Layer over Land. Part III: A Classification for Observations during CASES-99 , 2003 .

[53]  J. Wyngaard.  Turbulence in the Atmosphere: Contents , 2010 .

[54]  Robert M. Banta,et al.  Shear-Flow Instability in the Stable Nocturnal Boundary Layer as Observed by Doppler Lidar during CASES-99 , 2003 .

[55]  G. Powers,et al.  A Description of the Advanced Research WRF Version 3 , 2008 .

[56]  J. Dudhia.  Numerical Study of Convection Observed during the Winter Monsoon Experiment Using a Mesoscale Two-Dimensional Model , 1989 .

[57]  D. Stauffer,et al.  On Improving 4-km Mesoscale Model Simulations , 2006 .

[58]  Jordan G. Powers,et al.  A Description of the Advanced Research WRF Version 2 , 2005 .

[59]  J. Lundquist,et al.  Nocturnal Low-Level Jet Characteristics Over Kansas During Cases-99 , 2002 .

[60]  A. Baklanov,et al.  Further comments on the equilibrium height of neutral and stable planetary boundary layers , 2007 .

[61]  S. J. Weiss,et al.  Mesoscale Model Ensemble Forecasts of the 3 May 1999 Tornado Outbreak , 2000 .

[62]  John S. Kain,et al.  Convective parameterization for mesoscale models : The Kain-Fritsch Scheme , 1993 .

[63]  Gert-Jan Steeneveld,et al.  Modeling the evolution of the atmospheric boundary layer coupled to the land surface for three contrasting nights in CASES-99 , 2006 .

[64]  A. Holtslag,et al.  Evaluation and model impacts of alternative boundary-layer height formulations , 1996 .

[65]  R. Pielke,et al.  The Interaction of Katabatic Flow and Mountain Waves. Part II: Case Study Analysis and Conceptual Model , 2007 .

[66]  Louis J. Wicker,et al.  Time-Splitting Methods for Elastic Models Using Forward Time Schemes , 2002 .

[67]  Christian Hogrefe,et al.  Examination of model predictions at different horizontal grid resolutions , 2005 .

[68]  D. Stauffer,et al.  Non-stationary drainage flows and motions in the cold pool , 2010 .

[69]  L. Mahrt,et al.  Radiative and turbulent fluxes in the nocturnal boundary layer , 2003 .

[70]  L. Mahrt,et al.  The Nocturnal Surface Inversion and Influence of Clear-Air Radiative Cooling , 1982 .

[71]  J. Cuxart,et al.  Intercomparison and Evaluation of MM5 and Meso-NH mesoscale models in the stable boundary layer , 2008 .

[72]  G. D. Nastrom,et al.  A Climatology of Atmospheric Wavenumber Spectra of Wind and Temperature Observed by Commercial Aircraft , 1985 .

[73]  Brian P. Reen,et al.  A Case Study on the Effects of Heterogeneous Soil Moisture on Mesoscale Boundary-Layer Structure in the Southern Great Plains, U.S.A. Part II: Mesoscale Modelling , 2006 .