datasq: Magnetometer Observations of Station ABG, PHU, TUC and FRD...

In iWISA: Wavelet-Based Index of Storm Activity

Description

The H-component of the Ground-based magnetometer records from four stations, Alibag (ABG), Phuthuy (PHU), Tucson (TUC) and Fredericksburg (FRD), used to estimate Sq variation. This data frame has 87840 rows, corresponding to a two months interval (March-April 2001), and 4 columns corresponding to each station.

Usage

data(datasq)

Format

A data frame containing 87840 observations for each four stations.

Source

INTERMAGNET

Examples

data(datasq)
head(datasq)
# plot of observations in station ABG
plot(datasq[,1])

Example output

          [,1]      [,2]      [,3]     [,4]
[1,] -9.396094 -5.460556 -1.142729 3.315905
[2,] -9.371804 -5.400980 -1.129287 3.328768
[3,] -9.345997 -5.339444 -1.115946 3.341310
[4,] -9.318924 -5.276089 -1.102733 3.353614
[5,] -9.290836 -5.211060 -1.089677 3.365764
[6,] -9.261982 -5.144499 -1.076807 3.377843

iWISA documentation built on May 1, 2019, 7:37 p.m.