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Eco-hydrologically justified minimum discharges for flow levels at reportable...
The eco-hydrologically based minimum discharge (Qmin,ök) describes the minimum required discharge to ensure the good status of the biological quality elements macrozoobenthos... -
Aerial photo 2020
An aerial photograph is an image of part of the Earth's surface, photographed from a high vantage point away from the Earth's surface, usually from an aircraft.
