Use of reduced-rank covariance estimates for objective analyses of historical climate data sets

Outline

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Given a choice, climatologists in general would rather use the righthand panel below than the lefthand one

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Example of Optimal Interpolation

Projection of OI solution on eigenvectors of C (EOFs)

"Spagetti-western properties of least-squares estimates..."

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EOFs of SST (#1,2,3,15,80,120)

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EOFs of zonal wind anomaly

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Independent ENSO indices

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OUTSTANDING PROBLEMS

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Take home points

EXTRAS FOR DISCUSSION

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