Guralp Systems ART - Manual (Page 39)

User guide
3.2.15 Husid (Arias intensity) plot
As for other functions, this button has two behaviours
depending on whether single or multiple time-histories have
been selected. The windows produced can be saved in different
graphical formats (.bmp, .eps, .jpg, .png or .tif) using the
‘Save figure’ option on the ‘File’ menu and printed using the
‘Print figure’ option the ‘File’ menu. Also the values plotted can
be saved in a column format using the ‘Export data’ option on
the ‘File’ menu. The options used to create the figure can be
changed within the ‘Options’ menu located at the top of the
window.
The Arias intensities are displayed using units based on the
selected acceleration unit.
Single time-history selected
Clicking on this button will calculate and display the Husid plot
(i.e. Arias intensity against time) of the currently selected time-
history (see below). The left hand axis gives the Arias intensity
and the right hand side gives the percentage of Arias intensity.
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