nontidal
Lacking ocean rhythm
Nontidal describes bodies of water or conditions not affected by tides.
A nontidal river or wetland maintains relatively constant water levels regardless of lunar cycles.
The term appears in environmental science, navigation, and property law, where tidal boundaries often determine jurisdiction: The creek is nontidal above the dam.
Large flowing watercourse
- streamSteady continuous flow
- creekNarrow natural watercourse
- brookSmall flowing watercourse
- pondSmall still body
lake · freshwater · watershed · drainage basin · fluvial · limnology · landlocked · glacial lake
Groundwater-bearing geological formation
- water tableTop of groundwater zone
- groundwaterWater in underground rock
- artesianGroundwater under natural pressure
- springRecoiling metal spiral
seep · percolation · recharge · wellhead · hydrology · unconfined · confined aquifer · potable
Large water storage basin
- impoundmentOfficial seizure or detention
- damWater-holding barrier
- spillwayDam's water release structure
- aqueductChannel conveying water distances
storage · controlled · regulated · hydroelectric · intake · water supply · retention pond · levee
river
Large flowing watercourse
pond · lake · freshwater · watershed · drainage basin · fluvial · limnology · landlocked · glacial lake · oxbow
aquifer
Groundwater-bearing geological formation
- water tableTop of groundwater zone
- groundwaterWater in underground rock
- artesianGroundwater under natural pressure
spring · seep · percolation · recharge · wellhead · hydrology · unconfined · confined aquifer · potable · subsurface
reservoir
Large water storage basin
- impoundmentOfficial seizure or detention
- damWater-holding barrier
- spillwayDam's water release structure
aqueduct · storage · controlled · regulated · hydroelectric · intake · water supply · retention pond · levee · sluice
marsh
Grassy waterlogged lowland
mire · peatland · wetland · floodplain · riparian · slough · bottomland · bayou · backswamp · vernal pool