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01/18/2013<br />

Bulk Flows: Minimum Variance<br />

• Watkins et al. (2009), Feldman et al. (2010)<br />

• Bulk flow:<br />

• Different surveys difficult to compare<br />

− Different volumes, geometry, sparseness<br />

• Calculate weights to mimic ‘ideal’ survey geometry<br />

− Minimise variance between measured and ‘ideal’ bulk flow<br />

Weights<br />

Morag I. Scrimgeour 47

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