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Now showing items 11-20 of 25
Ensemble cloud model applications to forecasting thunderstorms.
(2000)
A cloud model ensemble forecasting approach is developed to create forecasts which describe the range and distribution of thunderstorm lifetimes that may be expected to occur on a particular day. Such forecasts are crucial ...
Automated classification of rainfall systems using statistical characterization.
(2003)
A general, completely automated procedure for classifying rainfall systems is developed. The technique is flexible and universally applicable, in that any rainfall system can be classified regardless of size, location, ...
Tropical climate stability, Hadley circulation, and deep cumulus convection: Vital synergism on a wet planet.
(2000)
Important features of the proposed formulation for precipitating deep turbulent clouds include the ability to calculate precipitation efficiencies, a new postulation relating cumulus buoyancy to solar radiation, and the ...
Kinematic, dynamic, and thermodynamic impacts of hook-echo hydrometeors, including explorations into the utilization of polarimetric radar data.
(2002)
The role hook-echo hydrometeors play in driving RFDs is investigated by estimating hook-echo hydrometeor types and amounts from polarimetric radar data and by using that information to drive a relatively simple downdraft ...
On use of the anelastic vertical vorticity equation in dual-Doppler analyses of the vertical velocity field.
(2001)
The potential for applying the anelastic vertical vorticity equation for dual-Doppler synthesis of the vertical wind field is explored. In particular, application of the vorticity equation as a weak variational constraint ...
Optical observations of lightning by the FORTE satellite: Terrestrial ground truth and implications for the interpretation of Jovian lightning data.
(2001)
Lightning and storm electrification have been studied from many different viewpoints and with many different instruments. The myriad of viewpoints and instruments often see the results or effects of different processes ...
The impact of Oklahoma's winter wheat belt on the mesoscale environment.
(2003)
The research documented in this manuscript demonstrates that Oklahoma's winter wheat belt has a significant impact on the near-surface, mesoscale environment during growth and after harvest. Differences in near-surface ...
Surface thermodynamic characteristics of hook echoes and rear-flank downdrafts, with implications for tornado genesis and maintenance.
(2000)
Since its first documentation in 1953, the "hook echo" has been perhaps the best-recognized radar feature of supercell storms. Hook echoes have been associated with a region of subsiding air to the rear of both tornadic ...
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 ...
Numerical simulations of cyclic storm behavior: Mesocyclogenesis and tornadogenesis.
(2003)
Building upon previous work that examined the dynamics and model sensitivity of cyclic mesocyclogenesis, this study uses idealized numerical simulations to investigate the cyclic redevelopment of vertical vortices in ...