| Ensemble Forecasting |
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| • | Normally
a single control forecast is |
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| integrated
from the analysis (initial |
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| conditions) |
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| • | In
ensemble forecasting several forecasts |
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| are
run from slightly perturbed initial |
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| conditions
(or with different models) |
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| • | The
spread among ensemble members gives |
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| information
about the forecast errors |
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