
Through mathematic derivations, we can show that the empirical orthogonal functions (EOFs) of a time series Z(x, y, t) are the eigenvectors of the covarinace matrix of the time series.
NCL Graphics: EOFs
Standard EOF (aka eigenvector, principal component) analysis yields patterns and time series which are both orthogonal. The derived patterns are a function of the domain and the time …
In summary, there are two recipes to get the EOFs and corresponding principal com-ponent time-series.1 The first recipe is through Eqns. 1, 2, 4, and 7 respecively.
What Does EOF Analysis do? In brief, EOF analysis uses a set of orthogonal functions (EOFs) to represent a time series in the following way: Z(x,y,t) is the original time series as a function of …
Part 4: Time Series II - University of California, Irvine
Through mathematic derivations, we can show that the empirical orthogonal functions (EOFs) of a time series Z (x, y, t) are the eigenvectors of the covarinace matrix of the time series. The …
Empirical Orthogonal Function (EOF) Analysis and Rotated EOF …
Jul 22, 2013 · In climate studies, EOF analysis is often used to study possible spatial modes (ie, patterns) of variability and how they change with time (e.g., the North Atlantic Oscilliation).
A Cautionary Note on the Interpretation of EOFs
Jan 15, 2002 · Empirical orthogonal function (EOF) analyses (rotated or not) are widely used in climate research. In recent years there have been several studies in which EOF analyses were …
eof documentation - Chad a. Greene
The eof function gives eigenmode maps of variability and corresponding principal component time series for spatiotemporal data analysis. This function is designed specifically for 3D matricies …
Empirical Orthogonal Function (EOF) analysis - MathWorks
Apr 25, 2016 · In statistics and signal processing, the method of empirical orthogonal function (EOF) analysis is a decomposition of a signal or data set in terms of orthogonal basis functions …
[ncl-talk] model ensemble EOF analysis - mailman.ucar.edu
May 22, 2020 · If so, then the "time series” would be the concatenation of the time series of each ensemble member. In order to get that, you need to combine time and ens member …
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