The Evaluation of Electrical Prospecting 1D Method Applied to Groundwater Exploration in Pasig-Potrero River Basin, Pampanga, Philippines.

DOI Web Site 1 Citations 3 References
  • HIRAIDE Sigenobu
    Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
  • COLLADO M. B.
    2Bureau of soil and Water Management, Philippines
  • RONDAL J. D.
    2Bureau of soil and Water Management, Philippines
  • SUZUKI Kouichi
    Central Research Institute of Electric Power Ind ustry
  • MORISHIMA Wataru
    Graduate School of Science, Tokyo Metropolitan University
  • WATANABE Makiko
    Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
  • KINUGASA Yosihiro
    Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology

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Other Title
  • フィリピンＰａｓｉｇ‐Ｐｏｔｒｅｒｏ川流域における地下水探査への電気探査法垂直探査の適用性評価
  • フィリピン Pasig-Potreroガワ リュウイキ ニ オケル チカスイ タンサ エ ノ デンキ タンサホウ スイチョク タンサ ノ テキヨウセイ ヒョウカ

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1991 Mt. Pinatubo eruption has caused changes of groundwater in Mt. Pinatubo area. A simple and valid method is demanded to estimate groundwater level for the development of shallow well irrigation system. HIRAIDE et al. (2001) reported that electrical exploration could be applied to investigate groundwater in Pasig-Potrero river area. This study aims to discuss the evaluation of electrical prospecting 1D method (ρ-a method) for a feasible groundwater exploration method. Boring and measurement of groundwater level were performed to verify the precision of groundwater estimation by electrical prospecting 1D method.<BR>The results obtained in this study are summarized as follows.<BR>1) Boring investigation proved that one dimension sounding (ρ-a method) was able to estimate geological stratum and groundwater level.<BR>2) Repeating measurement conducted in the same site revealed that exploration results from one dimension sounding were reproducible regardless of rainfall.<BR>3) From the comparison of analytical data for both wet and dry season, it is clarified that electrical prospecting 1D method. is precise enough to use in full season as a practical method for estimating groundwater level. The accuracy of estimated groundwater level was obtained as 1.1-1.2m

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