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RISDiscrete Frontal Propagation in a Nonconvective Environment
Publisher: American Meteorological Society
Abstract: Surface discrete frontal propagation in a wintertime, nonconvective environment is documented using conventional surface and upper-air data and simulated using the PSU?NCAR mesoscale model. Synoptic and mesoscale surface ...
Development of a Fire Weather Index Using Meteorological Observations within the Northeast United States
Publisher: American Meteorological Society
Abstract: fire weather index (FWI) is developed using wildfire occurrence data and Automated Surface Observing System weather observations within a subregion of the northeastern United States (NEUS) from 1999 to 2008. Average values ...
Regimes of Dry Convection above Wildfires: Idealized Numerical Simulations and Dimensional Analysis
Publisher: American Meteorological Society
Abstract: Wildfires are capable of inducing atmospheric circulations that result predominantly from large temperature anomalies produced by the fire. The fundamental dynamics through which a forest fire and the atmosphere interact ...
Regimes of Dry Convection above Wildfires: Sensitivity to Fire Line Details
Publisher: American Meteorological Society
Abstract: Fire lines are complex phenomena with a broad range of scales of cross-line dimension, undulations, and along-line variation in heating rates. While some earlier studies have examined parcel processes in two-dimensional ...
Climatology and Meteorological Evolution of Major Wildfire Events over the Northeast United States
Publisher: American Meteorological Society
Abstract: his study presents a spatial and temporal climatology of major wildfire events, defined as >100 acres burned (>40.47 ha, where 1 ha = 2.47 acre), in the northeast United States from 1999 to 2009 and the meteorological ...
A Study of Two-Dimensional Dry Convective Plume Modes with Variable Critical Level Height
Publisher: American Meteorological Society
Abstract: This study investigates the impact of wind speed and critical level height on dry convection above a prescribed heat source. This is done using the Advanced Regional Prediction System (ARPS) model in its two-dimensional ...
Impact of Bias-Correction Type and Conditional Training on Bayesian Model Averaging over the Northeast United States
Publisher: American Meteorological Society
Abstract: he performance of a multimodel ensemble over the northeast United States is evaluated before and after applying bias correction and Bayesian model averaging (BMA). The 13-member Stony Brook University (SBU) ensemble at ...
Evaluation and Postprocessing of Ensemble Fire Weather Predictions over the Northeast United States
Publisher: American Meteorological Society
Abstract: AbstractThe Short-Range Ensemble Forecast (SREF) system is verified and bias corrected for fire weather days (FWDs) defined as having an elevated probability of wildfire occurrence using a statistical Fire Weather Index ...
A Numerical Study of Smoke Concentration Distribution near Low-Intensity Fires: Sensitivity to Vertical Canopy Structure and Fire Heat Source Strength
Publisher: American Meteorological Society
Mean and Turbulent Flow Downstream of a Low-Intensity Fire: Influence of Canopy and Background Atmospheric Conditions
Publisher: American Meteorological Society
Abstract: his study examines the sensitivity of mean and turbulent flow in the planetary boundary layer and roughness sublayer to a low-intensity fire and evaluates whether the sensitivity is dependent on canopy and background ...