Seismic Resolution Horizontal Fresnel Zone Calculator
First Fresnel zone radius r = (V/2) sqrt(t0 / f) governing horizontal seismic resolution, with velocity in meters per second, zero-offset two-way time t0 in seconds and dominant frequency f in hertz.
Description
First Fresnel zone radius r = (V/2) sqrt(t0 / f) governing horizontal seismic resolution, with velocity in meters per second, zero-offset two-way time t0 in seconds and dominant frequency f in hertz.
Seismic Resolution Horizontal Fresnel Zone Calculator: First Fresnel zone radius r = (V/2) sqrt(t0 / f) governing horizontal seismic resolution, with velocity in meters per second, zero-offset two-way time t0 in seconds and dominant frequency f in hertz.
When to use Seismic Resolution Horizontal Fresnel Zone
Use this geological calculation for a transparent first-pass interpretation of measured rock, soil, fluid, well, stratigraphic, isotopic, geophysical, or seismic data under an explicitly selected model.
- V
- Average P-wave velocity in meters per second.
- f
- Dominant frequency in hertz.
- t0
- Zero-offset two-way time to the reflector in seconds.
How Seismic Resolution Horizontal Fresnel Zone works
First Fresnel zone radius r = (V/2) sqrt(t0 / f) governing horizontal seismic resolution, with velocity in meters per second, zero-offset two-way time t0 in seconds and dominant frequency f in hertz. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.1
- Fresnel radius
- First Fresnel zone radius in meters.
- Fresnel width
- Full Fresnel zone width in meters.
- lambda
- Dominant wavelength in meters.
Limitations and assumptions
- Seismic magnitudes, moments, travel times, velocities, resolution, and energy depend on instrument correction, Earth model, phase picking, geometry, attenuation, radiation pattern, bandwidth, and calibration range. Magnitude scales are not universally interchangeable.
- Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.
Alternative or Complementary approaches
Compare independent measurements and models, retain units and analytical metadata, propagate uncertainty, and validate interpretations against logs, cores, maps, laboratory data, or field observations.
References
-
Seismology — Wikipedia contributors
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