Groundwater monitoring by GPR in Mongolia

研究成果: Conference article査読

4 被引用数 (Scopus)

抄録

A controlled water production was performed at a water source of Ulaanbaatar city, Mongolia to evaluate the effectiveness of ground penetrating radar for detecting and monitoring dynamic groundwater movements in the subsurface. The groundwater level in Ulaanbaatar city area is between 2 m-10 m. This relatively shallow depth makes it a suitable target for detection by GPR. Field experiments in Ulaanbaatar were carried out in 2001 with 100 MHz antennae. We measured the groundwater level around a pumping well, then we monitored the change of the level after the pump was stopped. The groundwater level was about 5 m. We could detect the groundwater change about 50 cm, when the water level in the production well changed by 65 cm. If we acquire the data by locating the antenna positions very accurately, we can obtain radar profiles with very high coherency, and we could see the groundwater migration clearly. The CMP was also used in the same site in order to determine the reflection from the groundwater surface. It was found that CMP and velocity analysis give a good information about the depth variation of the groundwater saturation in soil.

本文言語English
ページ(範囲)545-550
ページ数6
ジャーナルProceedings of SPIE - The International Society for Optical Engineering
4758
DOI
出版ステータスPublished - 2002
イベント9th International Conference on Ground Penetrating Radar - Santa Barbara, CA, United States
継続期間: 2002 4 292002 5 2

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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