Water Chapter 1 Fetter - Applied Hydrogeology

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Water Chapter 1 Fetter - Applied Hydrogeology

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Water Chapter 1 Fetter - Applied Hydrogeology

  1. 1. Chapter 1 Water Prepared By Baker Younis
  2. 2. above and below surface of Liquid water in oceans and continents. Ice in polar regions and at high elevations. Water Vapor in the atmosphere. 1.3 Billion cubic kilometers of water on Earth 97.5% is saltwater 2.5% is freshwater
  3. 3. Hydrologic Cycle , Hydrologic Budget • Definition Of Hydrology : We Mean The Water Surface & the movement of the Water on the Earth • Definition Of Hydrogeology : We Mean & Discrip The ground water , Study of the interrelationships of geologic materials and processes with water
  4. 4. The Hydrologic Cycle Describes how water moves in surface and near-surface environments
  5. 5. Processes in the hydrologic cycle: 1) Evaporation 2) Transpiration: needs plants 3) condensation 4) Rainfall / Precipitation 5) Runoff
  6. 6. Runoff Overland flow Runoff Base flow/ Storm flow Interflow/underflow
  7. 7. Energy Transformation It Depends on Solar Radiation
  8. 8. The Hydrologic Equation The general equation: Is essentially a problem of conservation of mass: Inflow = outflow +/- storage OR: Inflow - Outflow = change in storage Inflow = precipitation, surface inflow, loss from a body of surface water, subsurface inflow, overland flow, groundwater discharge into a body of surface water.
  9. 9. The Hydrologic Equation Outflow = evaporation, transpiration, surface outflow, soil evaporation, loss of water through a stream bed, loss of water to a body of surface water, loss to vegetation, percolation to the water table, pumpage, removal to a water supply
  10. 10. Change in storage Change in storage = increase or decrease in subsurface storage, increase or decrease in surface storage. P=R+T+E+U where: P = precipitation R = runoff T = transpiration E = evaporation U = underflow
  11. 11. What Do Hydrogeologist Do? A hydrologist is a scientist who researches the distribution, circulation and physical properties of underground and surface waters. He or she may help environmental scientists and other scientists preserve and clean up the environment or may search for groundwater.
  12. 12. Sources Of Hydrogeologic Information USGS : United States Geological Survey EPA : Environmental protection Agency NOAA: National Oceanic & Atmospheric Administration

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