subbasins
Smaller drainage areas
Subbasins are smaller drainage areas within a larger watershed or river basin.
Water flowing through a subbasin eventually joins the main basin's waterway.
The term appears in hydrology, geology, and environmental planning, where managing water resources requires understanding how larger systems divide into component parts: The study mapped twelve subbasins feeding the Colorado River.
Area collecting water runoff
- aquiferGroundwater-bearing geological formation
- groundwaterWater in underground rock
- infiltrationCovert entry into organization
- streamflowRiver water's measured movement
discharge · runoff · permeability · hydrograph · precipitation · evapotranspiration · percolation · freshwater
Area collecting water runoff
- valleyLow ground between heights
- floodplainFlood-prone riverside lowland
- deltaSymbol denoting variation
- alluviumWater-deposited loose sediment
sediment · sedimentation · erosion · fluvial · riparian · estuary · terrain · landform
Stream entering larger river
- confluenceMeeting point of streams
- channelPassage for transmission
- watershedDrainage area boundary
- rivuletVery small stream
gully · culvert · spillway · overflow · effluent · sewerage · aqueduct · outlet
Organism's natural environment
- biodiversityRange of life forms
- riparianRelating to riverbanks
- wetlandWaterlogged land ecosystem
- floraPlants of a region
fauna · endemic · conservation · species · ecosystem · watershed · restoration
catchment
Area collecting water runoff
- aquiferGroundwater-bearing geological formation
- groundwaterWater in underground rock
- infiltrationCovert entry into organization
streamflow · discharge · runoff · permeability · hydrograph · precipitation · evapotranspiration · percolation · freshwater · recharge
catchment
Area collecting water runoff
- valleyLow ground between heights
- floodplainFlood-prone riverside lowland
- deltaSymbol denoting variation
alluvium · sediment · sedimentation · erosion · fluvial · riparian · estuary · terrain · landform · elevation
tributary
Stream entering larger river
- confluenceMeeting point of streams
- channelPassage for transmission
- watershedDrainage area boundary
rivulet · gully · culvert · spillway · overflow · effluent · sewerage · aqueduct · outlet · network
habitat
Organism's natural environment
- biodiversityRange of life forms
- riparianRelating to riverbanks
- wetlandWaterlogged land ecosystem
flora · fauna · endemic · conservation · species · ecosystem · watershed · restoration