põhivoo
Põhivoo is the portion of a river's discharge that is supplied by groundwater seeping into the channel, continuing even during dry periods. It contrasts with runoff or quickflow, which responds rapidly to rainfall.
It is estimated by hydrograph separation, separating baseflow from stormflow in recorded discharge, using methods such
Baseflow is ecologically important, sustaining aquatic habitats, maintaining stream temperature, providing drought resilience, and contributing to
In the Estonian context, baseflow is influenced by regional geology and groundwater systems; long-term monitoring of
Etymology: the term combines 'põhi' (base, bottom) and 'vool' (flow).