Gerhard Barmen

Earth and Planetary Sciences

1. Groundwater 100%
2. Investigation 89%
3. Aquifer 84%
4. Bolivia 78%
5. Electrical Resistivity 53%
6. Nicaragua 46%
7. Highland 46%
8. Recharge 36%
9. Region 34%
10. Groundwater Recharge 31%
11. River 31%
12. Geological Structure 28%
13. Tomography 26%
14. Show 26%
15. Heavy Metal 25%
16. Water Resource 23%
17. Intrusion 22%
18. Bedrock 21%
19. Fault 20%
20. Groundwater Flow 20%
21. Contamination 19%
22. Depth 16%
23. Zimbabwe 15%
24. Pollution Transport 15%
25. Rill 15%
26. Cartography 15%
27. Electrical Method 15%
28. Electromagnetic Method 15%
29. Induced Polarization 15%
30. Delineation 15%
31. Ghana 15%
32. Pollution 15%
33. Waste 13%
34. Weathering 12%
35. Stable Isotope 11%
36. Stream 11%
37. Basalt 11%
38. Metal 11%
39. Content 9%
40. Probability Theory 9%
41. Groundwater Circulation 9%
42. Sounding 8%
43. Map 7%
44. Groundwater Resource 7%
45. Human Activity 7%
46. Ion Exchange 7%
47. Increasing 7%
48. Surface Water Pollution 7%
49. Existence 7%
50. Ion 7%