2. Topic: El Nino

3. Moisture & Latitude

4. El Nino In Action

5. El Nino – La Nina - - El Nino – La Nina – -

7. Topic: Ground Water

8. - - - - - - Sun -

9. Where is the water? Source % of Supply Oceans97.08 Ice Sheets and Glaciers1.99 Ground Water0.62 Atmosphere0.29 Lakes (Fresh)0.01 Inland Seas / Salt Water Lakes0.005 Soil Moisture0.004 Rivers0.001

10. Surface storage: - www.visitusa.com

11. Runoff: - http://veimages.gsfc.nasa.gov/6566/Egypt.A2004201.0830.1km.jpg

12. Infiltrate: -

13. - Where does your faucet water come from?

14. Long Island consists of gravels, sand, silt and clays

15. Ground Water -

16. Pore - Porosity -

17. Unsaturated - Saturated –

18. Water Table: –-–-

19. Fire Island Long Island Sound Great South Bay You are here

21. Permeability - Impermeable -

22. Precipitation Evaporation Evapotranspiration Evaporation while falling

23. The Water Cycle on Long Island http://www.scwa.com/

24. Can we influence our groundwater? www.euwfd.com

26. FQ: What can we do to protect our ground water? ----

27. What are the affects of sediments on Groundwater?

28. Porosity All the pore space

30. Which sample has more porosity? Same

32. Size vs. Porosity Particle Size Porosity Increasing

33. Sorting of Sediments (sorted) (unsorted)

34. Sorting vs. Porosity Sorting Porosity Well Sorted Increasing Poorly Sorted

35. Which sample has more porosity?

36. Shape vs. Porosity Shape Porosity Round Increasing Flat (Clays) (sands)

37. Which sample has more porosity?

38. Permeability

39. Which sample is more permeable?

40. Size vs. Permeability Particle Size Permeability Increasing

41. Which sample is more permeable?

43. *As permeability increases, -

44. Infiltration

45. Size Large Faster Small Size vs. Infiltration Infiltration Slower

46. Slope vs. Infiltration Slope Infiltration Steep Faster Gentle Slower

47. Water Cohesion and Adhesion www.atpm.com/13.10/tim-allen/

48. Water Retention - upload.wikimedia.org/wikipedia/en/0/0c/Bottle.jpg

49. Size vs. Water Retained Size Water Retained Large Increasing Small

50. Smaller particles have more surface area to stick on

51. Capillarity —

52. Size vs. Capillarity Size Capillarity Large Increasing Small

53. FQ: Describe the porosity and permeability in unsorted sediments.