In hydrologic terms, an area having a common outlet for its surface runoff (also see Watershed and Catchment Area).
The size of the area comprising a watershed or river basin. Also called catchment area.
an area in which surface run- off collects and from which it is carried by a drainage system; also known as catchment area
The area upgradient of a source contributing water to the source via overland flow; this area is based on topography, except where overland flow is captured and/or diverted (e.g., storm sewers, run - on control features, walls) around the source. In cases where upland flow is captured or diverted, only the area of the source and areas upgradient of the source between the source and the device or structure diverting overland flow from the source are included in the drainage area.
the area of a watershed usually expressed in square miles or acres.
of a site on a stream is that area, measured in a horizontal plane, that has a common outlet at the site for its surface runoff.
The area drained by a stream or streams.
Land area from which water flows into a stream or lake (see also watershed).
of a stream at a specific location is that area, measured in a horizontal plane, enclosed by a topographic divide from which direct surface runoff from precipitation normally drains by gravity into the river from an upstream specified point. Figures of drainage area given herein include all closed basins, or noncontributing areas, within the area unless otherwise noted.
The area draining into a stream at a given point. It may be of different sizes for surface runoff, subsurface flow and base flow, but generally the surface runoff area is considered as the drainage area.
the geographical area draining into a river or reservoir
an area from which water drains by gravity into a common river, lake or other water body
Area that drains into a body of water such as a stream or a reservoir.
A general term for the land area drained by a ditch, creek, stream, or river. When reference is made specifically to a large surface water body like a river, the term Drainage Basin is used.
The land area from which water drains to a given point.
of a stream at a specified location is that area, measured in a horizontal plane, enclosed by a topographic divide from which direct surface runoff from precipitation normally drains by gravity into the stream above the specified point.
Total land area from which water drains into a point on a river or its tributaries. The Mississippi River drainage area comprises 41% of the land area of the 48 contiguous States.
The drainage area of a stream at a specified location is that area, measured in a horizontal plane, that is enclosed by a drainage divide.
That portion of the earth's surface upon which falling precipitation flows to a given location.
An area of land that drains to one point; watershed.
The surface area contributing to a drainage basin, inside which all surface waters will flow to a common outlet.
The area that contributes surface runoff to a given outlet; same as watershed area.
The area that drains naturally to a particular point on a river or stream.