Ephemeral Rivers in India: Meaning, Features & Examples

An ephemeral river is a type of river that flows only during periods of significant rainfall. Unlike perennial rivers that flow year-round, ephemeral rivers remain dry for most of the year and carry water only occasionally.

What is an Ephemeral River?

  • Definition: An ephemeral river is a temporary stream or river that flows briefly during and after rainfall.
  • Dry Beds: These rivers typically have dry riverbeds, known as wadis, nullahs, or ravines, depending on the region.
  • Flow Duration: Flow may last from a few hours to a few days.
  • Source of Water: Their water is primarily runoff from rain, not from groundwater or melting snow.

Characteristics of Ephemeral Rivers

  • Rainfall-dependent: Flow only after heavy rain.
  • Dry Most of the Year: Unlike seasonal rivers, they remain dry for extended periods.
  • Common in Arid and Semi-Arid Regions: Found in deserts and drylands.
  • High Erosion Potential: Due to sudden water surges.
  • No Base Flow: They don’t have a sustained water source like springs or glaciers.

Examples of Ephemeral Rivers in India

  • Ghaggar-Hakra
  • Luni River
  • Bandi River
  • Katni River

Difference Between Ephemeral and Perennial Rivers

FeatureEphemeral RiverPerennial River
Flow DurationOnly during/after rainfallAll year round
Water SourceRainfall runoffGlaciers, springs, rainfall
Base FlowAbsentPresent
Common RegionArid/semi-aridHumid/sub-humid
Example (India)Ghaggar-HakraGanga, Brahmaputra

📌 You can also explore our detailed article on Perennial Rivers and Rivers of Rajasthan for more context.

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