- Hydrological drought is associated with the effects of periods of precipitation shortfalls (including snowfall) on surface or subsurface water supply (i.e., streamflow, reservoir and lake levels, groundwater). Hydrological droughts are usually out of phase with or lag the occurrence of meteorological and agricultural droughts. It takes longer for precipitation deficiencies to show up in components of the hydrological system such as soil moisture, streamflow, groundwater and reservoir levels.
What is hydrological drought?
G.R.C.
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Hydrological drought is the effect of precipitation shortfalls on streamflow, reservoirs and groundwater.