catchment area

(redirected from catchment areas)
Also found in: Dictionary, Thesaurus, Medical.

catchment area


drainage basin,

area drained by a stream or other body of water. The limits of a given catchment area are the heights of land—often called drainage divides, or watersheds—separating it from neighboring drainage systems. The amount of water reaching the river, reservoir, or lake from its catchment area depends on the size of the area, the amount of precipitation, and the loss through evaporation (determined by temperature, winds, and other factors and varying with the season) and through absorption by the earth or by vegetation; absorption is greater when the soil or rock is permeable than when it is impermeable. A permeable layer over an impermeable layer may act as a natural reservoir, supplying the river or lake in very dry seasons. The catchment area is one of the primary considerations in the planning of a reservoir for water-supply purposes.

Catchment area

Surface, typically on a roof, where rainwater is caught and directed into a rainwater harvesting system.

catchment area

[′kach·mənt ‚er·ē·ə]
The rural-urban outskirts of a particular city.

catch basin

A reservoir, esp. for catching and retaining surface drainage over a large area, in which sediment may settle.

catchment area

the area of land bounded by watersheds draining into a river, basin, or reservoir
References in periodicals archive ?
The study, by Santander, reveals that many families move to an area they do not like purely to be within a sought-after catchment area and will move away from the area once their child has secured a place or as soon as their child finishes school.
The secondary school with the third smallest catchment area was Bordesley Green Girls' School and Sixth Form, which was deluged with 927 applications for its 120 places.
The report also claimed that businesses in Birmingham's catchment area exported more goods to Asia and the Middle East than any other UK terminal.
IPL CEO Sundar Raman said that franchisees are aware of the catchment area regulations and also in cases when more than one team owner approaches an uncapped player.
It is in this context that this article compares common methods used to define catchment areas outside of the United Kingdom with improved statistically defensible method based on K-means clustering, which is applicable in a wide variety of geographical and market contexts.
He added: "I don't think people are all that aware of the idea of catchment areas yet, but if they are introduced then there is sure to be an effect.
What we are against is the abuse of power and the abuse of below-cost selling by the largest retailers in small catchment areas for the sole purpose of long-term domination of the catchment area.
Due to large dimensions of mining fields (operating mines + closed mines) the catchment areas of different rivers (Purtse, Rannapungerja, Puhajogi, Vasavere) located in the same fields must be in essential hydrological interconnection, because the velocity of underground water exchange increases essentially, causing in turn the acceleration of groundwater infiltration into the rivers by flooded mines [8].
Property in the catchment areas of England's top 50 community primary schools costs an average of 33pc more than homes in the surrounding area, according to Barclays Private Clients.
I think more institutions are looking to increase their catchment areas and they know they can do it through the Contact North network," says Betty.
Retail and arts/entertainment demand study defining primary and secondary catchment areas, consumer preferences, demographics and other factors to identify any unmet demand
Reingold notes that there has been an increase in the number of calls to the Hebrew Home's community services and residential programs since the show began airing, and reiterates that the show is broadcast in the Hebrew Home's primary community services catchment areas.