What's New :
1st May 2024 (14 Topics)

Baseflow

Context

A recent study looking into heavy rainfall, baseflow and river floods in Peninsular India has provided new insights into what factors drive flooding in the regions.The study revealed a significant correlation between trends in floods and trends in baseflow in Peninsular India.

About Baseflow:

  • Baseflow refers to the portion of streamflow or river discharge that is sustained by groundwater contributions during periods of low precipitation or runoff.
  • It represents the groundwater's slow release into streams, rivers, or other water bodies over time.
  • Baseflow is typically characterized by a relatively stable flow rate and temperature compared to surface runoff, which tends to fluctuate more rapidly in response to rainfall events.

Fact Box: Interflow

  • Interflow is where the infiltrated water travels to a stream above the groundwater level (unsaturated zone).
  • The response time for interflow is longer than surface runoff.
  • Baseflow is where the infiltrated water percolates to a groundwater layer.
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