Permanent (or stationary) flow: Refers to a flow whose properties do not vary with time.

Transient flow: Refers to a flow whose properties vary with time.

EDF : Electricity of France

SI: Suitability Index (variable mesh scale)

HSI: Habitat Suitability Index (mesh scale)

OSI : Overall Suitability Index (reach scale)

WUA : Weighted Usable Area (reach scale)

WUV : Weighted Usable Volume (reach scale)

UA : Unknown Area in percentage (reach scale)

AFB: The French Biodiversity Agency

OFB: French Office for Biodiversity

GIS: Geographic Information System