Earthquake Ground Motion Visualization Generator
I designed and developed an automated program suite that creates various types
of 2D or 3D visualizations of earthquake ground motion, given an arbitarary set
of seismic sensor data. The raw signal data is filtered, sampled, normalized
for instrument sensitivity, analyzed to remove extreme data, with optional
processing (e.g., nonlinear scaling or clipping). The data is then mapped to
colors and glyphs for display at the geographic sensor location.
All of the processing options are user settable, from the initial data
preparation (e.g., filter bandwidth, time ranges, sampling rates,
normalization), to the visualization parameters, including numerous colormaps
(e.g., perceptually linear, rainbow), glyph types (e.g., cylinders, spheres),
map projections (e.g., Mercator, Azimuthal equidistant or equal-area), and
display types (e.g., 2D vs 3D or persepective vs orthographic)
This work was done for the University of Washington, Incorporated Research
Institutions for Seismology (IRIS). Two examples are provided here. Click
the images to download/play the QuickTime movies.
To learn more, see selections
under Visualization R & D
at left.
|
