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ECMWF overview, Nils Wedi - C-SRNWP Project

ECMWF overview, Nils Wedi - C-SRNWP Project

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EPS representation of uncertainty<br />

Initial uncertainty using perturbations from the ensemble of<br />

data assimilations (EDA) in addition to perturbations based<br />

on singular vectors (SVs)<br />

Subgrid-scale uncertainty: Stochastically perturbed<br />

parametrization tendency scheme (SPPT) (temporal and<br />

spatial randomization)<br />

EWGLAM/<strong>SRNWP</strong> 2010 Slide 8<br />

<strong>ECMWF</strong>

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