Electrical Resistivity Tomography

Knowledge graph centered on Electrical Resistivity Tomography with 76 nodes and 196 connections. Top connected: The East River, Colorado, Watershed: A mountainous, Atriplex canescens, Potentilla, climate change, Bacteria.

Method synopsis

Time-lapse electrical resistivity imaging using dipole-dipole array configuration to map subsurface electrical conductivity patterns and estimate soil moisture distribution across the hillslope.

Synthesized from method descriptions across 6 papers using this protocol.

Procedure from a recent peer-reviewed implementation

Steps below were extracted from the most recent peer-reviewed implementation of this protocol in the corpus — Advanced monitoring of soil-vegetation co-dynamics reveals the successive controls of snowmelt on soil moisture and on plant seasonal dynamics in a mountainous watershed (2023), Frontiers in Earth Science. Implementations in other papers (listed below) may differ.

1. Perform electrical resistivity tomography surveys
   ERT data were collected using a 1.25m electrode spacing and dipole-dipole array configuration. Surveys were linked to a field computer powered by solar panel installations. Data were collected daily from October 2016 to November 2017, with about 20% and 80% data missing in WY2017 and WY2018 respectively. Low-quality measurements with potentials <1mV were removed prior to inversion.
   Quantities: 1.25m electrode spacing, daily data collection, ~20% missing data in WY2017, ~80% missing in WY2018Duration: Daily from October 2016 to November 2017 with gapsConditions: Outdoor field conditions, solar-powered system
   Equipment: electrical resistivity tomography system, electrodes, field computer, solar panel installations

Typical Equipment

• electrical resistivity tomography system
• electrodes
• field computer
• solar panel installations

Output Measurements

• soil electrical conductivity
• electrical resistivity

Papers Using This Protocol (6)

Species Studied With This Protocol

Places Where Used