El Nino Wavelet
A Practical Guide to Wavelet Analysis
With significance and confidence testing
Christopher Torrence
National Snow and Ice Data Center
CIRES, CU Boulder
        Gilbert P. Compo
CIRES, University of Colorado & Physical Sciences Division, NOAA ESRL
Boulder, Colorado

Wavelet Analysis & Monte Carlo

References & Web Sites

Interactive Wavelet Plot (no longer available)

Software for Fortran, IDL, Matlab, and Python

Frequently Asked Questions (FAQ)

Article: "A Practical Guide to Wavelet Analysis", C. Torrence and G. P. Compo, 1998*.

Abstract & List of Topics
Additional information & Errata
Google Scholar Citations

Wavelet Coherency and Phase


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* Permission to place a copy of this work on this server has been provided by the American Meteorological Society. The AMS does not guarantee that the copy provided here is an accurate copy of the published work.