A GIS-based Modeling For Groundwater Vulnerability Index in Tuul River Basin, North Central Mongolia<br />V.Ulziisaikhan, ...
A GIS-based Groundwater Vulnerability Index in Tuul River Basin, Mongolia<br />Study Area: Tuul River Basin, Mongolia<br /...
Area: 49,744 sq. km
River length: over 700 km
Upstream: From Terelj, Khentii Mountain
Downstream: To Orkhon river</li></ul>Climate:<br /><ul><li>Mean annual temperature  0.2 ~ -4.3 C
Precipitation ranges 240 ~ 392 mm
Annual potential evaporation - mm</li></li></ul><li>Groundwater Exploitable Resource Map -Tuul River Basin<br />
METHODLOGY<br />DRASTIC - US Environmental Protection Agency (Aller et al. 1987) <br />DRASTIC Index = Dx5 + Rx4  + Ax5 + ...
Parameter Map – Depth to Water<br />
Parameter Map - Recharge<br />
Parameter Map – Aquifer Media<br />
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A GIS-based Modeling For Groundwater Vulnerability Index in Tuul River Basin, North Central Mongolia

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A GIS-based Modeling For Groundwater Vulnerability Index in Tuul River Basin, North Central Mongolia

  1. 1. A GIS-based Modeling For Groundwater Vulnerability Index in Tuul River Basin, North Central Mongolia<br />V.Ulziisaikhan, M-Eng., PhD Student, MUST<br />Email: terelj@gmail.com<br />N.Jadambaa, PhD - Hydrogeology<br />Email: jadambaa_n@yahoo.com<br />D.Batjargal, BSc. – Hydrogeology<br />Email: bachka_8@yahoo.com<br />Ulaanbaatar, 2010<br />
  2. 2. A GIS-based Groundwater Vulnerability Index in Tuul River Basin, Mongolia<br />Study Area: Tuul River Basin, Mongolia<br />Geography: <br /><ul><li>Elevation: 742 ~ 2780 m
  3. 3. Area: 49,744 sq. km
  4. 4. River length: over 700 km
  5. 5. Upstream: From Terelj, Khentii Mountain
  6. 6. Downstream: To Orkhon river</li></ul>Climate:<br /><ul><li>Mean annual temperature 0.2 ~ -4.3 C
  7. 7. Precipitation ranges 240 ~ 392 mm
  8. 8. Annual potential evaporation - mm</li></li></ul><li>Groundwater Exploitable Resource Map -Tuul River Basin<br />
  9. 9. METHODLOGY<br />DRASTIC - US Environmental Protection Agency (Aller et al. 1987) <br />DRASTIC Index = Dx5 + Rx4 + Ax5 + Sx2 + Tx1 + Ix5 + Cx3<br />
  10. 10. Parameter Map – Depth to Water<br />
  11. 11. Parameter Map - Recharge<br />
  12. 12. Parameter Map – Aquifer Media<br />
  13. 13. Parameter Map- Soil Texture<br />
  14. 14. Parameter Map- Topography<br />
  15. 15. Parameter Map- Vados Zone (I)<br />
  16. 16. Parameter Map- Conductivity<br />
  17. 17. RESULT – ҮР ДҮН<br />
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