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| • | Bred
vectors (BVs) and Lyapunov vectors (LVs) |
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| are closely related: |
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| • | BVs
with infinitesimal
amplitude are identical to |
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| leading LVs. |
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| • | BVs
are Finite-Amplitude, Finite-Time, whereas |
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| LVs are infinitesimal, and are defined after |
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| an infinite time |
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| • | Which ones are better for data
assimilation and |
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| ensemble forecasting? |
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