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Evaluation of Three Planetary Boundary Layer Schemes in the WRF Model
Abstract Accurate depiction of meteorological conditions, especially within the planetary boundary layer (PBL), is important for air pollution modeling, and PBL parameterization schemes play a…
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Impacts of Initial Estimate and Observation Availability on Convective-Scale Data Assimilation with an Ensemble Kalman Filter
The ensemble Kalman filter (EnKF) uses an ensemble of short-range forecasts to estimate the flow-dependent background error covariances required in data assimilation. The feasibility of the EnKF for…
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Assimilation of Simulated Doppler Radar Observations with an Ensemble Kalman Filter
Assimilation of Doppler radar data into cloud models is an important obstacle to routine numerical weather prediction for convective-scale motions; the difficulty lies in initializing fields of wind,…
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Generation of Mesoscale Gravity Waves in Upper-Tropospheric Jet–Front Systems
Abstract Multiply nested mesoscale numerical simulations with horizontal resolution up to 3.3 km are performed to study the generation of mesoscale gravity waves during the life cycle of idealized…
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Internal gravity waves from atmospheric jets and fronts
For several decades, jets and fronts have been known from observations to be significant sources of internal gravity waves in the atmosphere. Motivations to investigate these waves have included…
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Effects of Moist Convection on Mesoscale Predictability
In a previous study by the authors, it was shown that the problematic numerical prediction of the 24‐25 January 2000 snowstorm along the east coast of the United States was in some measure due to…
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Evaluation of NCEP-CFSR, NCEP-NCAR, ERA-Interim, and ERA-40 Reanalysis Datasets against Independent Sounding Observations over the Tibetan Plateau
The NCEP‐NCAR reanalysis, NCEP Climate Forecast System Reanalysis (CFSR), 40-yr ECMWF ReAnalysis (ERA-40), and interim ECMWF Re-Analysis (ERA-Interim) products are evaluated with sounding…
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Mesoscale Predictability of Moist Baroclinic Waves: Convection-Permitting Experiments and Multistage Error Growth Dynamics
A recent study examined the predictability of an idealized baroclinic wave amplifying in a conditionally unstable atmosphere through numerical simulations with parameterized moist convection. It was…
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Ensemble-based simultaneous state and parameter estimation in a two-dimensional sea-breeze model
The performance of the ensemble Kalman filter (EnKF) in forced, dissipative flow under imperfectmodel conditions is investigated through simultaneous state and parameter estimation where the source…
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Diurnal Variations of Warm-Season Precipitation over Northern China
Abstract This study examines the diurnal variations of the warm-season precipitation over northern China using the high-resolution precipitation products obtained from the Climate Prediction Center’s…
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