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Seismic Critical AngleAll functions are free

Seismic Critical Angle

θc=asin(v₁/v₂): Calculate the critical angle of seismic refraction based on the input, and provide local sensitivity curves and data export.

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requires that the wave speed of the lower layer is not less than that of the upper layer, calculated based on the flat horizontal interface.

Seismic Critical Angle: uses and methods

θc=asin(v₁/v₂): Calculate the critical angle of seismic refraction based on the input, and provide local sensitivity curves and data export.

Applicable scope and calculation boundary

requires that the wave speed of the lower layer is not less than that of the upper layer, calculated based on the flat horizontal interface.

model and reference method

θc=asin(v₁/v₂)

model version: 1.1.0. The results are used for scientific research, exploration and teaching, please interpret according to the model conditions.

input parameters

Upper wave speed(m/s)
Value range: 100 – 10000
lower wave speed(m/s)
Value range: 100 – 15000

How to use

  1. Load the example or enter data that matches the field description.
  2. Confirm units and models, run calculations and check diagnostics.
  3. Export charts, tables or results packages and record model versions.

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are free and open; free sponsorship does not affect tool permissions. All functions of Read scientific methods and data explanations 。

FROM SCIENCE TO PRACTICE

commercial application case

Industry Application · Independent Reproduction Example

Seismic Critical Angle

In the preliminary calculation or experimental design of solutions related to the critical angle of seismic refraction, compare the impact of input changes on the results; review with original data and applicable conditions.

Public industry reference: Colorado School of Mines · Department of Geophysics

The institution’s public research directions include: Near-surface geophysical, electromagnetic and seismic imaging research. This link serves as a portal for field background and extended learning.

View product or organization original information

on this site

  1. Load the default example of Seismic Critical Angle and check Upper wave speed、lower wave speed and its units.
  2. is calculated using θc=asin(v₁/v₂), and the results are compared after adjusting a single parameter.
  3. checks applicable conditions and diagnostics, and exports numerical tables, charts, and model versions for review.

Deliverables

θc=asin(v₁/v₂): Calculate the critical angle of seismic refraction based on the input, and provide local sensitivity curves and data export. delivers parameter records, calculation charts, and reproducible JSON result packages.

needs to be checked before landing

requires that the wave speed of the lower layer is not less than that of the upper layer, calculated based on the flat horizontal interface.。

case is compiled for public industry purposes, and the reproduction steps are independent examples of this site; it does not mean that the above-mentioned institutions use or endorse this site, nor does it cite customer benefits that have not been publicly verified. The

SEE THE PRINCIPLE IN MOTION

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recommended by universities and research institutions

Earth & Geophysics

The following is the recommended reading order of this website organized by direction relevance, public research resources and learning portals. The number is the serial number recommended by the editor, not QS, THE or paper measurement ranking; it does not represent the overall strength of the institution.

  1. 01

    Colorado School of Mines · Department of Geophysics

    United States The

    Near-surface geophysical, electromagnetic and seismic imaging research。

    official website link accessibility check: 2026-10-03
  2. 02

    ETH Zürich · Department of Earth and Planetary Sciences

    Switzerland

    Earth interior imaging, petrophysics and geodynamics。

    official website link accessibility check: 2026-10-03
  3. 03

    USGS United States Geological Survey

    United States The

    Groundwater, geohazards and geophysical public data The。

    official website entrance; please refer to the current public page of the institution.

catalog compiled on 2026-10-03. Link accessibility does not equate to verification of the latest papers, admissions, or program status; please check the institution's official website for specific research teams and opportunities.

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