Ensemble Forecasting - Multiple predictions from an ensemble of slightly different initial conditions and/or various versions of models.
Ensembles
Reference to a set of computer models run under the concept of Ensemble Forecasting: multiple predictions from an ensemble of models with slightly different initial conditions used as input and/or slightly different versions of models.
Ensemble Hydrologic Forecasting: A process whereby a continuous hydrologic model is successively executed several times for the same forecast period by use of varied data input scenarios, ...
Ensemble
Given the chaotic nature of the weather, very small changes in starting conditions can produce a radically different forecast.
Ensemble Forecasts
A means of forecasting where the computers are given slightly different initial conditions.
Environmental Lapse Rate ...
Spray- An ensemble of water droplets torn by the wind from an extensive body of water, generally from the crests of waves, and carried up into the air in such quantities that it reduces the horizontal visibility.
Spray (PY) An ensemble of water droplets torn by the wind from the surface of the of an extensive body of water, generally from crests of waves, and carried a short distance into the air.
Storm and Mesoscale Ensemble Experiment
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Left Mover, Right Mover, Splitting Storm, Storm, Storm Scale, Storm Tracking Information ...
TPWTotal Precipitable WaterTraceIn hydrologic terms, a hydrograph or similar plot for an extended-range time horizon showing one of many scenarios generated through an ensemble forecast process.
TraceIn hydrologic terms, a hydrograph or similar plot for an extended-range time horizon showing one of many scenarios generated through an ensemble forecast process.TrackThe path that a storm or weather system follows.
ergodic condition"An idealized atmospheric state where the ensemble average equals both the time and spatial averages.
Types can include mean over an ensemble of experimental realizations, mean over a time period, mean along a line such as a road or flight path, mean in an area such as a farm field, ...
Blizzard, Bomb (revised definition), Cold-front wave, Ensemble (expanded definition), Ensemble mean, gusts, IPV, mean wind, pressure units, various abbreviations, vorticity (expanded definitions, including relative, absolute & potential), ...
Medium- and long-range forecasts are usually based on ensemble-technique forecasts. A computer simulation is run several times with slightly different initial conditions.
Drifting Snow
An ensemble of snow particles raised by the wind to a small height above the ground. The visibility is not sensibly diminished at eye level.
A storm which carries large amounts of dust into the atmosphere. Ensemble of particles of dust or sand energetically lifted to great heights by a strong and turbulent wind.
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SAMEXStorm and Mesoscale Ensemble ExperimentSampling FrequencyThe rate at which sensor data is read or sampled.SandstormParticles of sand carried aloft by strong wind.
Discussions may also refer to the method of operational ensemble predictions.
 See also: Air, Surface, Horizon, Front, Circulation
  
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