drainage divide


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Related to drainage divide: drainage basin, Water basin

drainage divide

[′drān·ij də‚vīd]
(geology)
The border of a drainage basin.
The boundary separating adjacent drainage basins.
References in periodicals archive ?
If dyes (and pollutants) introduced into the environment within the Tennessee River watershed (as determined by the surface drainage divide) are later found within both watersheds, then conversely pollutants introduced within the Cypress Creek watershed will eventually be found within the Tennessee River watershed, and the Key Cave aquifer.
Even if all pollutants from the proposed industrial site were somehow diverted into the Cypress Creek watershed based on the surface drainage divide, there is little hydrogeographic evidence to show that these contaminants would be restricted to Cypress Creek (Kidd et al.
The problems associated with managing and protecting recharge areas for irrigation water are compounded in regions underlain by carbonate rocks because of the tendency of water to move through subsurface solution openings that cut across surface drainage divides, making identification of the recharge areas extremely difficult.