Geopsy: H/V and Spectrum Results

Windowing and processing are performed after adjusting the parameters in the H/V Toolbox.

Signal and selected windows

Signal and selected windows before processing

After applying the windowing selection criteria, the selected windows appear in green on the signal sheet.

Signal and selected windows before processing

After processing, each selected windows appear with its own color on the signal sheet.

H/V graph

H/V curve

The H/V graph shows:

• individual H/V curves from the selected windows, with the color of the corresponding window in the signal sheet (provided All window of the H/V options in preferences has been selected
• the average H/V curve (black line)
• the amplitude standard deviation curves (dashed lines)
• the H/V peak frequency standard deviation domains (the two vertical gray areas)

The frequency of the H/V peak is at the limit between the two gray areas.

The name of the receiver appear above the top right corner of the H/V graph.

Average H/V curve

If All window of the H/V options in preferences has not been selected the color curves do not appear

H/V graph tools

H/V graph tools

With a right-click outside the H/V graph a pop-up menu appears (this menu is also present at the top of the window when running geopsy under Windows or Linux).

The menu items are described in the figue reference manual, except Tools, a geopsy specific feature described here below.

The Item Tools includes six sub-items:

Load results

Load a H/V curve which results are stored in a .hv file (Example)

Save results

Save the H/V curve in a .hv file (Example)

Edit peaks

Main article: Edit peaks

The following sub-items make more sense to be used when computing several H/V curves (see next section)

Processing several receivers

Individual H/V curves

Individual H/V curves

H/V summary

H/V summary