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Evaluation of boreholes sites based on airphoto derived parameters

  • Edet A. E. 
Article

Abstract

Three parameters derived from air photo interpretations namely: lithology, lineament index and drainage index have been employed to compute a ground-water site evaluation index (GWSEI).

The GWSEI values are then used as a basis to evaluate the groundwater potentials of borehole sites.

Results from the study show that high GWSEI values are consistent with high borehole hield values.

Keywords

Nigeria Lineament Index Drainage Density Groundwater Potential Borehole Site 

Évaluation de sites de pompage à l'aide de la photo-interphétation

Résumé

Trois paramètres sont définis à partir de l'interprétation des photogrphies aériennes: la lithologie, les linéaments, le drainage, caractérisés par des «indices». Ces demiers servent de base à une évaluation des nappes souterraines (indice GWSEI: «ground-water site evaluation index»).

Les valeurs de cet indice permettent d'estimer les potentialités des sites de pompage.

Létude montre que les valeurs élevées du «GWSEI» correspondent effectivement à des débits élevés sur les sites.

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References

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Copyright information

© International Association of Engineering Geology 1996

Authors and Affiliations

  • Edet A. E. 
    • 1
  1. 1.Department of GeologyUniversity of CalabarCalabarNigeria

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