¥Most common format is Ôvariables = stations or gridpoints; observations = different timesÕ
¥Eigenvectors are known as empirical orthogonal functions (EOFs) and the technique as EOF analysis
¥Elements of the EOFs are often plotted as contours on a map
¥Note that the EOFs are vectors of loadings in PCA, not the PCs themselves, which are time series in this context
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