An efficient methodology to design optimal groundwater level monitoring network in Al-Buraimi region, Oman

A. Izady, O. Abdalla, T. Ahmadi, M. Chen

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Designing an optimal groundwater level monitoring network (GLMN) is a major challenge and one of the primary goals of groundwater management. This paper proposes a methodology that incorporates comparative analysis of IDW, spline, ordinary kriging (OKrig), and empirical Bayesian kriging (EBK) interpolation methods with “1-fold cross-validation” technique for the regionalization and redesigning of the existing GLMN in an arid hardrock-alluvium Al-Buraimi region, Oman-UAE border. The performance indicators (weighted RMSE = 10.84 m and weighted R2 = 0.79) show the superiority of the EBK interpolation method over other methods and reveal reasonably accurate results when applied in areas with sparse and scarce observation wells. A new GLMN is proposed with regard to the results of the EBK method in which the idea of a “secondary observation network” is presented to reduce time and cost needed for groundwater level measurements. The proposed GLMN consists of 14 new observation wells added to 39 existing wells in order to provide better quality data compared to the current GLMN. The procedure used herein provides a practical and straightforward method to regionalize groundwater level variations and redesign the GLMN in regions with complex hardrock-alluvium geological setting.

Original languageEnglish
Article number26
JournalArabian Journal of Geosciences
Volume10
Issue number2
DOIs
Publication statusPublished - Jan 1 2017

Fingerprint

groundwater
methodology
kriging
well
alluvial deposit
interpolation
monitoring network
regionalization
data quality
method
fold
cost

Keywords

  • Groundwater
  • Hardrock-alluvium
  • Monitoring network
  • Oman
  • Regionalization
  • “1-fold cross-validation” technique

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

Cite this

An efficient methodology to design optimal groundwater level monitoring network in Al-Buraimi region, Oman. / Izady, A.; Abdalla, O.; Ahmadi, T.; Chen, M.

In: Arabian Journal of Geosciences, Vol. 10, No. 2, 26, 01.01.2017.

Research output: Contribution to journalArticle

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