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surface water
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A cross-sectional diagram of land shows the water table as the upper boundary of groundwater, with a stream and pond representing surface water where the water table meets the land surface. Unsaturated soil lies above the water table.
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surface water

hydrology
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A cross-sectional diagram of land shows the water table as the upper boundary of groundwater, with a stream and pond representing surface water where the water table meets the land surface. Unsaturated soil lies above the water table.
diagram illustrating the water table The water table is the top level of groundwater. Surface water is an exposed part of the water table.

Surface water refers to all water on the Earth's surface, including rivers, lakes, and oceans. It is a crucial component of the hydrologic cycle, where water evaporates from surfaces, condenses in the atmosphere, falls as precipitation, and flows back to bodies of water. Hydrology, the scientific study of water, focuses on the occurrence, movement, and characteristics of water, particularly near the land surface. This includes understanding precipitation, evaporation, transpiration, runoff, and groundwater flow. Surface waters are vital for human civilizations and are increasingly under pressure due to population growth, pollution, and changing weather patterns, leading to concerns about availability and quality.12345

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7 Britannica Sources
  1. hydrologic sciences
  2. hydrologic sciences - Runoff and stream discharge
  3. hydrology
  4. water supply system - The hydrologic cycle
  5. water supply system - Surface water sources
  6. water resource
  7. water scarcity

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