psd (version 0.4-0)

magnet: A single line of Project MAGNET horizontal field intensity.

Description

The Project MAGNET mission provided a wealth of airborne-magnetometer data spanning the globe (Coleman, 1992). This dataset represents a single track of horizontal field intensities (a very small subset of the full collection!).

source

Project MAGNET page: http://www.ngdc.noaa.gov/geomag/proj_mag.shtml

Details

Raw and Clean Sets{ There are non-real data points in raw MAGNET series; these are instrumental artefacts, and can severely affect power spectral density (PSD) estimates. A clean series has been included so that a comparison of PSDs may be made.

Some command like subset(magnet, abs(mdiff) > 0) can be used to identify the rows where edits have been made. }

References

Coleman, R. J. (1992), Project Magnet high-level vector survey data reduction. In Types and Characteristics of Data for Geomagnetic Field Modeling, 3153, pp. 215-248.

See Also

pspectrum, Tohoku, hfsnm

Examples

data(magnet)
summary(magnet)