The portion of a river's flow sustained by groundwater discharge during periods without significant rainfall or snowmelt, keeping rivers flowing through dry spells rather than running dry between storms. It reflects the slow drainage of an aquifer into the channel and is a key indicator of a river system's resilience to drought.
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Sources
1. Baseflow (Wikipedia)
Wikipedia infobox 'Lead section' = 'Baseflow is the portion of the streamflow that is sustained between...' on 'Baseflow'View the Source 2. Base Flow (Wikipedia)
Wikimedia FoundationLead sectionQuote, Lead section
Baseflow (also called drought flow, groundwater recession flow, low flow, low-water flow, low-water discharge and sustained or fair-weather runoff) is the portion of the streamflow that is sustained between precipitation events, fed to streams by delayed pathways.
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