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Effects of nesting frequency and lateral boundary perturbations on the dispersion of limited-area ensemble forecasts.
(2003)
To help restore error variance and LAM ensemble dispersion, a new method is developed to apply statistically consistent LBC perturbations that remain spatially and temporally coherent while passing through the boundaries. ...
Ensemble Kalman filter assimilation of Doppler radar data for the initialization and prediction of convective storms.
(2006)
Finally, the EnSRF is applied to the May 29-30, 2004 central Oklahoma tornadic thunderstorm case. The initial storm environment is either horizontally homogeneous as defined by a single sounding or is three dimensional as ...
Clustering methodologies applied to short-term ensemble forecasting: An exercise in data mining.
(2000)
In ensemble forecasting system, the divergence of the ensemble members during evolution may lead to the identification of clusters of different sizes in the finale state. Based on the size of each cluster, probabilities ...
3DVAR and cloud analysis with WSR-88D Level-II data for the prediction of tornadic thunderstorms.
(2005)
Doppler weather radar observations play a key role in initializing convective storms within storm-scale numerical weather prediction (NWP) models. The radial velocity and reflectivity are the two main parameters measured ...
Dynamic adjustment in an idealized numerically-simulated bow echo.
(2002)
While the large-scale atmosphere is governed by relatively simple dynamic balance relations that describe the mutual adjustment between the mass and wind fields (e.g., hydrostatic and geostrophic balances), no simple ...
Phase-correcting data assimilation and application to storm-scale weather prediction.
(1999)
New observing systems such as the Oklahoma Mesonet, the NEXRAD Doppler radar network, and high resolution satellite data present the opportunity to make accurate numerical weather predictions on the mesoscale and thunderstorm ...