Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Methods of Obtaining Topography

Methods of Obtaining Topography

Topography involves measuring and mapping land elevations, natural features, and artificial structures to create accurate representations of the terrain. Topographic surveying relies on traditional and modern methods, each with distinct advantages and limitations.Traditional Surveying Methods:Transit stadia surveys and plane table surveys were widely used traditional surveying methods. These techniques relied on instruments like theodolites and stadia rods for measuring distances and angles,...

Adjusting a Traverse

Adjusting a Traverse

In the site survey of a four-sided traverse, internal angles are essential to ensure geometric accuracy. The survey revealed that the sum of the measured internal angles was 359 degrees and 48 minutes, which is 12 minutes less than the expected 360 degrees. This discrepancy signals an error likely arising from measurement inaccuracies during the fieldwork.To rectify this error, the adjustment process involved distributing the 12-minute shortfall equally across the four internal angles. By...

Distance Corrections

Distance Corrections

To achieve precise distance measurements, especially in surveying and construction, certain corrections must be applied to account for potential sources of error like the standardization errors, temperature variations, and slope adjustments.Standardization error emerges when measurement equipment undergoes changes, such as wear, repairs, or weather impacts. To address this, surveyors compare the equipment’s readings to a standard. This process identifies any deviation that might lead to...

Resistivity

Resistivity

When a voltage is applied to a conductor, an electrical field is generated, and charges in the conductor feel the force due to the electrical field. The current density that results depends on the electrical field and the properties of the material. In some materials, including metals at a given temperature, the current density is approximately proportional to the electrical field. In these cases, the current density can be modeled as:

Computed Tomography

Computed Tomography

Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...

Taping Over Different Ground Profiles

Taping Over Different Ground Profiles

Taping over varying ground profiles requires careful adaptation to achieve accurate measurements. On smooth, level ground with minimal vegetation, the tape can rest directly on the ground. Here, the taping team, typically consisting of a head and a rear tapeman, coordinates their positions with clear communication. The rear tapeman holds the tape at the starting point and guides the head tapeman toward a range pole placed beyond the endpoint, using hand or voice signals to ensure alignment.On...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Ultra-Fast Infiltration Behavior of Vacuum Freeze-Dried Apples.

Small (Weinheim an der Bergstrasse, Germany)·2026

Same author

Study on the Adsorption Mechanism of Atrazine by Sesame Hull Biochar/Sepiolite Composite Material.

Toxics·2026

Same author

Pulmonary hypertension caused by fibrosing mediastinitis: A case report and literature review.

Medicine·2026

Same author

Stathmin-mediated autophagy drives the differentiation of dermal fibroblast into myofibroblast under TGFβ1 stimulation.

Molecular biology reports·2025

Same author

Pneumonic-type lung carcinoma with respiratory failure as the first manifestation: A case report and literature review.

Medicine·2025

Same author

Coordination Patterns of The Swimming Start: A Comparative Study Between Elite and Sub-Elite Swimmers.

Journal of sports science & medicine·2025

Search research articles

Related Experiment Video

Updated: Jun 4, 2025

Extracting Metrics for Three-dimensional Root Systems: Volume and Surface Analysis from In-soil X-ray Computed Tomography Data

Extracting Metrics for Three-dimensional Root Systems: Volume and Surface Analysis from In-soil X-ray Computed Tomography Data

Published on: April 26, 2016

Correction methods and applications of ERT in complex terrain.

Mingdong Zhao¹, Menghan Jia¹, Luqi Yang¹

¹North China University of Water Resources and Electric Power, No. 136, Jinshui East Road, Jinshui District, Zhengzhou City 450046, Henan Province, PR China.

|December 17, 2024

Summary

Terrain undulations impact Electrical Resistivity Tomography (ERT) accuracy. This review covers terrain correction methods for ERT data, from early simulations to modern techniques, enhancing subsurface interpretation.

Keywords:

Deep learning in data interpretation Electrical resistivity tomography (ERT)Geophysical exploration Terrain correction techniques

More Related Videos

Imaging Replicative Domains in Ultrastructurally Preserved Chromatin by Electron Tomography

Imaging Replicative Domains in Ultrastructurally Preserved Chromatin by Electron Tomography

Published on: May 20, 2022

Dynamic Pore-scale Reservoir-condition Imaging of Reaction in Carbonates Using Synchrotron Fast Tomography

Dynamic Pore-scale Reservoir-condition Imaging of Reaction in Carbonates Using Synchrotron Fast Tomography

Published on: February 21, 2017

Related Experiment Videos

Last Updated: Jun 4, 2025

Extracting Metrics for Three-dimensional Root Systems: Volume and Surface Analysis from In-soil X-ray Computed Tomography Data

Extracting Metrics for Three-dimensional Root Systems: Volume and Surface Analysis from In-soil X-ray Computed Tomography Data

Published on: April 26, 2016

Imaging Replicative Domains in Ultrastructurally Preserved Chromatin by Electron Tomography

Imaging Replicative Domains in Ultrastructurally Preserved Chromatin by Electron Tomography

Published on: May 20, 2022

Dynamic Pore-scale Reservoir-condition Imaging of Reaction in Carbonates Using Synchrotron Fast Tomography

Dynamic Pore-scale Reservoir-condition Imaging of Reaction in Carbonates Using Synchrotron Fast Tomography

Published on: February 21, 2017

Area of Science:

Geophysics
Geophysical Exploration
Earth Sciences

Background:

Electrical Resistivity Tomography (ERT) is vital for groundwater, environmental, engineering, and archaeological studies.
Terrain undulations significantly distort ERT data, causing false anomalies and complicating subsurface interpretation.

Purpose of the Study:

To review the historical development and current state of terrain correction techniques for ERT methods.
To provide a comprehensive overview of various correction methodologies and their underlying principles.

Main Methods:

Review of terrain correction techniques including ratio, numerical simulation (FEM, FDM), angular domain, conformal transformation, inversion, and orthogonal projection methods.
Analysis of mathematical and physical models used to correct terrain-induced distortions in ERT data.

Main Results:

Terrain correction technology has evolved significantly, accommodating diverse exploration sites.
Various methods exist to mitigate terrain effects, improving the interpretative accuracy of ERT data.

Conclusions:

Existing terrain correction methods show progress but face limitations like high computational cost and geological condition mismatch.
Future research should focus on improving efficiency, reducing resource consumption, and exploring advanced techniques like deep learning for enhanced ERT data reliability.