<p>This is 20 seconds of data from the 2005 TOMODEC ocean bottom seismometer network at Deception Island, South Shetland Islands, Antarctica with sample rate <code>tt</code>.
It shows one of several thousand transitory seismic events occurring in Port Foster (the flooded caldera of the volcano).</p>

datasets

Builds on the EMD package to provide additional tools for empirical mode decomposition (EMD) and Hilbert spectral analysis. It also implements the ensemble empirical decomposition (EEMD) and the complete ensemble empirical mode decomposition (CEEMD) methods to avoid mode mixing and intermittency problems found in EMD analysis.  The package comes with several plotting methods that can be used to view intrinsic mode functions, the HHT spectrum, and the Fourier spectrum.

Daniel C Bowman

The Hilbert-Huang Transform: Tools and Methods

Daniel C. Bowman

Jonathan M. Lees

sig function

<p>A 2500 element vector containing the seismic record.  Units are meters per second.</p>

sig: Transitory Seismic Event at Deception Island Volcano

Description

Usage

Arguments

Format