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(2790) Overfall weir type water seal, or Priming weir type water seal
A water seal formed by the mingling of two overflowing opposite nappes in the duct near the crest of the body wall (dam). A small receptacle to admit water from the reservoir for the above purpose is located opposite the crest (illustrated).
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Irrigation
Drainage
Dictionary - Drainage and Water Quality Terms
- Acceptable quality level
- Operating characteristic in quality control, or OC curve in quality control
- Surface water hydrology
- Geohydrology, Hydrogeology or Groundwater hydrology
- Hydrological year, or Water year
- Headwater, or Headwaters
- Slush, or Watery mud
- Snowmelt, or Snow water
- Water-equivalent of snow, Snow water equivalent
- Drainage area, Drainage basin, River basin, Catchment area, Catchment basin, Catchment, Watershed
- Experimental basin, or Experimental watershed (USA, AU)
- Water parting, Drainage divide, Divide, Watershed divide, Watershed boundary, Topographic divide
- Yield of drainage basin, Annual yield of drainage basin
- Storm runoff or Storm-water runoff
- Groundwater runoff
- Drainage modulus, or Drainage coefficient
- Watershed leakage
- Headwater storage
- River basin management, Watershed management, or River management
- River basin model, or Watershed model (US)
- Ungauged basin, or Ungaged watershed (US)
- Water balance, or Water budget
- Groundwater storage
- Groundwater province
- Subsurface water, Underground water, or Subterranean water
- Groundwater
- Zone of aeration, Aeration zone, Zone of suspended water, or Unsaturated zone
- Belt of soil water
- Interstitial water
- Suspended water
- Capillary groundwater, or Fringe water
- Intermediate water
- Vadose water, Gravity suspended water, or Gravitational water
- Groundwater table
- Free groundwater, Phreatic water, or Non-artesian water
- Confined water, or Confined groundwater
- Perched water, or Perched groundwater
- Semiperched groundwater
- Fixed groundwater
- Connate water
- Adsorption water
- Attached groundwater
- Cavern water
- Cavern water reservoir
- Fissure water, or Fault water
- Juvenile water
- Metamorphic water
- Meteoric water
- Pore water
- Primitive water
- Rejuvenated water
- Water of compaction
- Water of infiltration
- Influent water
- Water of condensation
- Groundwater flow
- Artesian water
- Groundwater reservoir
- Water-bearing media or Water-bearing strata
- Groundwater artery
- Groundwater divide
- Water-table spring
- Water-table contour, or Groundwater contour
- Hydro-isobaths, or Isobaths of water table
- Belt of fluctuation of water table, or Belt of phreatic fluctuation
- Phreatic decline, or Decline of water table
- Cone of water-table depression, or Cone of pumping depression
- Phreatic fluctuation, or Fluctuation of water table
- Groundwater cascade
- Groundwater dam
- Highest stage of the water table, or Phreatic height
- Groundwater ridge
- Interstream groundwater ridge
- Groundwater mound, or Groundwater hill
- Groundwater trench
- Groundwater withdrawal, or Groundwater extraction
- Water table
- Water surface (groundwater)
- Phreatic low, or Lowest stage of the water table
- Natural water table
- Profile of water table
- Perched water table
- Semiperched water table
- Field capacity, Normal field capacity, Normal moisture capacity, Maximum field carrying capacity, Field capillary (moisture) capacity, Effective water-holding capacity, Specific retention
- Effective velocity (of groundwater), Actual velocity (of groundwater), True velocity (of groundwater), or Field velocity (of groundwater)
- Apparent velocity (of groundwater)
- Average velocity (of groundwater)
- Critical velocity (of groundwater )
- Groundwater turbulent flow
- Groundwater recharge
- Groundwater balance, or Groundwater budget
- Groundwater increment, or Groundwater accretion
- Groundwater decrement
- Groundwater inventory
- Groundwater equation
- Groundwater management
- Groundwater model
- Absorbed water
- Groundwater balance
- Groundwater basin
- Zone of fluctuation of water table, or zone of phreatic fluctuations
- Dead water
- Water surface slope
- Water-stage recorder, or Water-level recorder
- Freshwater
- Surface water
- Watershed
- External drainage
- Ponded water
- Freshwater lake
- Centimetre of water
- Head of water in metres
- Head of water in metres
- Backwater
- Backwater curve
- Backwater effect
- Bed building stage of river, or Mean water stage of river
- High water training, or Training for discharge
- Low water training, or Training for depth
- Mean water training, or Training for sediment
- Tail water erosion
- Moisture content, Water content or Moisture percentage
- Water-depth ratio
- Hygroscopic moisture, Hygroscopic water, or Moisture of condensation
- Capillary moisture, or Capillary water
- Combined water
- Bound water
- Imbibation moisture, or Water of imbibation
- Water of saturation
- Water of supersaturation, or Water of dilation
- Moisture-holding capacity, Saturation capacity or Maximum water capacity
- Actual water deficiency
- Unavailable soil moisture, or Unavailable water
- pF of soil water
- Adhesive water, or Pellicular water
- Soil water zone
- Available water
- Soil water deficit
- Soil water tension
- Plerotic water
- Superfluous water
- Gravitational water
- Internal drainage
- Waterlogging
- Waterlogged low land
- Bio-drainage
- Drainage head
- Slack water, or Slack tide
- Diurnal inequality
- Tidal water level
- Low water of ordinary spring tides (LWOST)
- High water line of tide
- Indian spring low water
- Watershed management
- Endogenic drainage
- Allogenic drainage
- Endoreic drainage
- Areic drainage
- Exoreic drainage
- Operation waste, or Escaped water
- Waterway
- Standard waterway, Theoretical waterway, or Normal waterway
- Lacey`s waterway, or Lacey`s wetted perimeter
- Contracted waterway
- Dewatering
- Surface area of reservoir, or Maximum water surface area
- Water surface
- Maximum water level
- Retention water level, Top water level, Normal top water level, Full supply level, or Normal water level
- Exceptional water level, or Abnormal water level
- Normal water surface elevation, Normal water level, Conservation water level, Storage level, Normal pool level, or Conservation storage level
- Drainage gallery
- Drainage wells
- Waterstop
- River sluices, Waste outlets, or Dewatering outlets
- Horizontal drainage blanket, Pervious blanket, or Drainage filter
- Water intake test
- Pore pressure, Pore water pressure, or Neutral stress
- Water turbine
- Water hammer
- Water seal
- Cup basin type water seal
- Tilted outlet type water seal
- Obstruction weir type water seal
- Baby siphon type water seal, or Maramsilli baby siphon type water seal
- Auxiliary siphon type water seal
- Overfall weir type water seal, or Priming weir type water seal
- Mechanically induced water seal
- Tudel type water seal, Stepped type water seal, Offset type water seal, or Joggle type water seal
- Clear overfall type water seal
- Baffle type water seal
- Stilling basin, Tumble way, Hydraulic energy dissipator, Water-stilling device, or Energy dissipating device
- Water cushion, Stilling pool, or Cistern
- Tailwater rating curve, or Downstream stage discharge curve
- Water-sediment complex
- Water level diagram
- Constriction water-meter
- Mixed water levels control gate
- Flushing water
- Superfluous water
- Extra water, or Escapages
- Surplus water
- Excess water, or Surcharge water
- Waste water
- Lockage water
- Thrift basin chamber, Economizing chamber, Water saving chamber, Thrift lock
- Headwater
- Tailwater
- Cross-drainage work, or Drainage crossing
- Level crossing, or Level drainage device
- Syphon aqueduct, Drainage syphon, Cross drainage culvert
- Drainage overpasses
- Venturi flume drainage crossing
- Cut-water
- Sharp (nose) cut-water, or Pointed (nose) cut-water
- Blunt (nose) cut-water
- Circular (nose) cut-water, or Half round cut-water
- Segmental cut-water
- Straight (line, surface) sharp cut-water, Equilateral cut-water, or Sixty degree straight sharp cut-water
- Elliptical cut-water
- Asymmetrical (nose) cut-water
- Ease-water, Fairing
- Overall waterway
- Clear waterway, Clear span
- Drainage culvert, or Supply culvert
- Water mill
- Water flour mill
- Pelton wheel, Pelton water wheel, Tangential turbine
- Groundwater conservation
- Groundwater mining
- Groundwater overdraft
- Water allowance
- Integrated Water Resources Management
- Water right
- Water sales
- Water account
- Water requirement
- Period of shortage of water
- Excess water
- Water-right
- Waterman, or Water bailiff
- Watercourses
- Sub-watercourses
- Down the watercourse turn
- Round the watercourse turn
- Cross drainage
- Levee district, District water board, or Water board of polder
- Groundwater storeys
- Confined-water well
- Observation well, Groundwater station, Monitor well, or Piezometer
- Inverted drainage well, or Disposal well
- Depleted phreatic surface, or Depleted water table
- Cone of depression, Cone of pumping depression, Cone of influence, Cone of exhaustion, Cone of water table depression, or Cone of pressure relief
- Artesian water power
- Prospecting (groundwater)
- Dowsing, Water witching, or Divining
- Dowser, Divining rod, Dipping rod, Water witching stick, or Wiggle stick
- See-saw water lift, Picotah, Picottah, Piccota, or Pikota
- Improved water wheel, Chakram
- Water ladder, Chinese dragon wheel, Rahad
- Water wheel
- Undershot water wheel
- Irrigation from groundwater
- Irrigation by flood water spreading
- Preliminary watering
- First watering
- Irrigation through buried drains, Irrigation-drainage, or Vallenhove process
- Injected water ratio, or Driving water ratio
- Irrigation water
- Profitable crop water requirement, or Unit water requirement
- Water requirement, Net water requirement, Total water requirement
- Optimum water requirement
- Irrigation water requirement, Irrigation need
- Critical water deficit
- Possible water expenditure
- Crop water requirement
- Actual water income
- Desired water income
- Duty, or Water duty
- Designed duty of water
- Economic water duty
- Consumptive water use or Consumptive use
- Effective water use
- Water application efficiency
- Water storage efficiency
- Irrigation efficiency, Farm irrigation efficiency, Farm delivery efficiency, Water conveyance and delivery efficiency, or Overall efficiency
- Irrigation water-requirement
- Available soil water storage
- Field water balance
- Groundwater table
- Method of water delivery
- Peak period crop water requirements
- Soil water stress
- Soil water content
- Soil water tension
- Total available soil water storage
- Total soil water storage
- Crop water use efficiency or Crop water use index
- Irrigation water use efficiency
- Level of satisfaction of the water requirement of users
- Drainage
- Drainage channel
- Artificial drainage
- Lowland drainage
- Agricultural land drainage
- Drainage system
- Closed-drainage area, Blind drainage area, or Non-contributing area
- Drainage benefit
- Degree of drainage
- Surface water
- Field drainage
- Field drainage system
- Land drainage
- Natural drainage system
- Perched water table
- Seepage drainage
- Subsurface drainage system
- Open channel drainage
- Surface drainage
- Groundwater table
- Main drainage system
- Watershed
- Artesian water
- Water bearing
- Drainage fittings
- Drainage pump sump
- Drainage trench
- Drainage head
- Horizontal subsurface drainage system
- Natural drainage or Natural drainage capacity
- Improved drainage or Artificial drainage
- Random drainage system
- Trenchless drainage
- Open-channel drainage
- Convergent drainage pattern
- Natural drainage systems, or Random drainage systems
- Cutoff drainage system, or Intercepting drainage system
- Herringbone drainage system
- Gridiron drainage system
- Double-main drainage system
- Composite drainage system
- Grouping drainage system
- Zigzag drainage system
- Cross-slope ditch system, or Drainage-type terraces
- Drainage-density
- Drainage pattern
- Superposed drainage, Super imposed drainage or Inherited drainage
- Subsurface drainage, Under drainage, Subsoil drainage, Underground drainage, or Covered drainage
- Relief drainage system
- Convergent drainage system
- Elkington drainage system, Sink-hole drainage
- Rerolle drainage system
- Across-the-slope drainage system, or Keythrope drainage system
- Vertical drainage, or Inverted well
- Mole drainage
- Surface drainage system
- Drainage coefficient, Drainage modulus or Drainage design rate
- Drainage design rainfall
- Drainage efficiency
- Drainage season
- Excess water
- Field capacity, Field moisture capacity, Normal field capacity, Normal capacity, Capillary capacity, Maximum field carrying capacity, Field capillary (moisture) capacity, Effective water holding capacity
- Free water
- Phreatic water
- Soil water head
- Total head, Total hydraulic head or Total soil water potential
- Unconfined water
- Angular drainage pattern
- Arterial drainage
- Dendrite drainage
- Drainage boards (also called prefabricated drains)
- Slot drainage
- Water devide
- Radial drainage pattern
- Trellis drainage pattern
- Drainage density
- Vertical subsurface drainage system
- Backwater gate
- Drainage pumping station, Drainage pumping plant
- Water gate
- Waterproof cement
- Water repellent cement
- Water-reducing agent, or Wetting agent
- Water-repelling agent
- Water-cement ratio
- Moist curing, Water curing
- Bulk density, Void content, Specific gravity, Water absorption
- Water paints
- Water coffer dam
- Batchers, Aggregate batcher, Water batcher, Cement batcher
- Dewatering
- Semi-automatic field water distribution system, or Partially automatic system
- Water level control system (pumps)
- Quality ratios
- Water resources of artificial origin
- Water erosion
- Headwater erosion
- Aggressive water
- Total potential (of soil water)
- Soil water pressure
- Water content
- Soil Water Characteristics Curve
- Differential water capacity
- Soil water diffusivity
- Water control
- Watershed management
- Drainage terrace, Drainage control terrace, Interception and diversion terrace, Runoff control terrace, or Channel terrace
- Grassed waterways, or Sod waterways
- Water salinity
- Waste water re-use
- Environmental quality
- Freshwater peat
- Water Resource
- Cold‑water fishery
- Warm‑water fishery
- Primary standard (for air quality)
- Secondary standard (for air quality)
- Water pollution
- Water quality
- Waterborne diseases
- Water disturbance
- Groundwater contamination
- Industrial wastewater
- Raw water
- Reclaimed water
- Receiving waters
- Cooling water
- Wastewater
- Sanitary wastewater
- Municipal wastewater
- Domestic sewage, Domestic effluents, Domestic wastes, or Domestic wastewater
- Sullage water
- Stormwater runoff
- Stormwater overflow:
- Combined wastewater
- Compatible industrial wastewater
- Wastewater reclamation, waste water treatment
- Clarified wastewater
- Dewatering
- Decomposition of wastewater
- Coagulated wastewater
- Filtered wastewater
- Disinfected wastewater
- Oxidized wastewater
- Slow rate wastewater land treatment
- Rapid infiltration wastewater land treatment
- Overland flow wastewater land treatment
- Environmental quality standards
- Water quality management
- Water quality standards
- Drinking water standards
- Composite water sample
- Water quality criteria
- Water penetration
- Dystrophic water
- Drinking water supply
- Potable water
- Soft water
- Hard water
- Brackish water
- Salt water intrusion
- Land drainage
- Design drainage rate
- Soil drainage status
- Excessive drainage
- Imperfect drainage
- Surface water problem
- Water‑gathering surface
- Water neutral surface
- Water‑spreading surface
- Ground-water table control ditch
- Underdrainage
- Singular layout drainage design
- Natural drainage layout
- Composite layout drainage system
- Mole drainage
- Free drainage
- Poor drainage
- Drainage basin
- Groundwater flooding
- Watershed
- Flood mark, High watermark, or Rack mark
- Flood meter, or Water level gauge
- Highest high water
- Overflowing, or Overtopping by high water level
- Water-retaining side, Wet side, or Outer side of the dike
- Watercourse law
- Water tunnel
- Refraction (of water waves)
- Diffraction (of water waves)
- Project, Scheme, Water project, or Water resources development project
- Watershed project
- Municipal water
- Industrial water
- Domestic water
- Commercial water
- Public water
- Recreational uses of water
- Agricultural water use
- Artificial groundwater recharge
- Groundwater system, or Groundwater basin
- Water conservation
- Watercourse
- Water management
- Water policy
- Water resources
- Heavily modified water body
- Surface water body
- Water services
- Water resources appraisal
- Water resources survey
- Available water supply
- Phases of water resources development
- Underground water basin
- Partially developed underground water basin
- Fully developed underground water basin
- Groundwater investigations, or Geohydrological investigations
- Geochemical and geothermal water surveys
- Quality Assurance
- Quality Control
- Quality Management
- Quality Review
- Quality Planning
- Increment in land revenue, Water advantage rate, or Canal advantage rate
- Water rate, Water charge, Irrigation rate, or Irrigation assessment
- Water rental
- Minimum water rental charge
- Volumetric water rate
- Occupier`s water rate, or Crop water rate
- Agreement water rate, or Lease water rate
- Differential water rate
- Domestic, municipal and industrial water benefits
- Economic value of unit of irrigation water
- Revenue value of a unit of irrigation water
- Freshwater Lens
