TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

aquatic base flow method [1 record]

Record 1 2010-10-20

English

Subject field(s)
  • Ecology (General)
  • Environmental Studies and Analyses
  • Hydrology and Hydrography
DEF

... a method developed by the US Fish and Wildlife Service for calculating summertime streamflow recommendations based on median monthly mean flows for August.

CONT

Used primarily in New England, the Aquatic Base Flow method uses historic flow data to determine the median flow for the lowest flow month (typically August or September), and applies that level to the remainder of the year ... This approach assumes that a specific flow rate per unit of watershed area will provide an adequate minimum flow. It is simple to use, if historic data is available, but cannot account easily for site-specific biological concerns; nor can the method adequately and defensibly adjust for spawning or incubation.

OBS

The "default" ABF recommendation for summertime flows is 0.5 cubic feet per second per square mile of drainage area.

OBS

Baseflow: the discharge of groundwater from the zone of saturation to surface water bodies, such as lakes and streams.

Key term(s)
  • aquatic baseflow method
  • aquatic base-flow method
  • New England aquatic baseflow method
  • New England aquatic base-flow method
  • New England aquatic base flow method

French

Domaine(s)
  • Écologie (Généralités)
  • Études et analyses environnementales
  • Hydrologie et hydrographie
OBS

débit de base : Débit d'un cours d'eau particulier à un moment de l'année où il n'y a ni pluie ni fonte des neiges, habituellement, la quantité d'eau souterraine déchargée dans un cours d'eau.

Spanish

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