Integrated geophysical, geochemical and remote sensing assessment of soil corrosion susceptibility in Sabon Gida, Katsina State, Northwestern Nigeria

Authors

  • Akpaneno A. Francis
    Department of Geophysics, Federal University Dutsin-Ma, P.M.B 5001. Dutsin-Ma, Katsina State, Nigeria
  • Ahmad Abdulhakim
    Department of Geophysics, Federal University Dutsin-Ma, P.M.B 5001. Dutsin-Ma, Katsina State, Nigeria;
    Department of Physics, School of General Studies, Federal University of Transportation Daura, P.M.B. 1050, Daura, Katsina State, Nigeria

Keywords:

Soil corrosivity, Electrical resistivity, Analytical hierarchy process, Corrosion susceptibility, Remote sensing

Abstract

One of the major factors affecting the longevity of buried metallic infrastructure, including pipelines, underground tanks, and foundation materials, is soil corrosivity. This study integrated geophysical, geochemical, and remote sensing data to assess soil corrosion susceptibility in Sabon Gida, Katsina State, Nigeria. The Schlumberger array configuration was used to acquire vertical electrical sounding (VES) data at 44 stations to evaluate subsurface resistivity and corrosion potential. Soil samples were collected at depths of 0--0.5, 0.5--1.0, 1.0--1.5, and 1.5--2.0 m from five representative VES locations corresponding to different resistivity classes and analyzed for pH. Sentinel-2 Level-2A imagery was processed to derive the normalized difference vegetation index (NDVI), normalized difference water index (NDWI), bare soil index (BSI), and salinity index (SI). The analytical hierarchy process (AHP) and weighted sum model (WSM) were integrated within a geographic information system (GIS) to generate a corrosion susceptibility index (CSI) map. The interpreted resistivity values ranged from 23.11 to 1779 Ω m, indicating significant spatial variation in subsurface conductivity. Soil pH values ranged from 6.3 to 7.1, reflecting slightly acidic to near-neutral conditions. The remote sensing indices revealed spatial variations in vegetation cover, moisture conditions, salinity, and bare soil exposure across the study area. The resulting CSI map indicates predominantly moderate corrosion susceptibility across the study area on 2 to 3 scale of corrosion susceptibility level suggesting relatively favorable conditions for buried infrastructure. However, site-specific engineering investigations and direct corrosion measurements are recommended before installation. The integrated approach provides a more comprehensive assessment than single-parameter methods and offers valuable information for infrastructure planning and corrosion management in the study area.

Dimensions

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fig 1

Published

2026-07-30

How to Cite

Integrated geophysical, geochemical and remote sensing assessment of soil corrosion susceptibility in Sabon Gida, Katsina State, Northwestern Nigeria. (2026). African Scientific Reports, 5(2), 546. https://doi.org/10.46481/asr.2026.5.2.546

Issue

Volume 5, Issue 2, August 2026

Section

GEOSCIENCES SECTION
Copyright & Licensing

Copyright (c) 2026 Akpaneno A. Francis, Ahmad Abdulhakim

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Integrated geophysical, geochemical and remote sensing assessment of soil corrosion susceptibility in Sabon Gida, Katsina State, Northwestern Nigeria. (2026). African Scientific Reports, 5(2), 546. https://doi.org/10.46481/asr.2026.5.2.546

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