DOCUMENT
Hydrologic Terminology
633 definitions by National Oceanic and Atmospheric Administration

AblationAbutmentAbutment SeepageAcre-FootActive Conservation StorageActive (Usable) Storage CapacityAdirondack Type Snow Sampling SetAdvanced Weather Interactive Processing SystemADVISAeration ZoneAfterbayAgglomerateAirborne Snow Survey ProgramAirborne Snow Water Equivalent Measurement TheoryAlbedoALERT Flood Warning SystemAlert StageAlluvialAlluviumAnabranchAnchor IceAnchor Ice DamAnnual FloodAn Operations Manual LetterAntecedent Precipitation Index (API)API MethodAquicludeAquiferAquifugeArch DamArea-Capacity CurveArea of InfluenceArea Wide Hydrologic Prediction System (AWHPS)AridArroyoArtesian WellArtificial ControlASOS ProgramATDTDCS (Automated Tone Dial Telephone Data Collection System)AttenuationAutomated Event-Reporting GageAutomated Local Evaluation in Real Time (ALERT)B-44 Form, Cooperative Station ReportBackflowBacksightBackwater CurveBackwater EffectBackwater FloodingBankBankfull StageBankfull Stage/ElevationBank StorageBarrageBase FloodBaseflowBase StationBase WidthBasinBasin BoundaryBasin LagBasin RechargeBed LoadBeginning of FreezupBeginning of the BreakupBenchmark (BM)Black IceBorder iceBrackish IceBraided StreamBrash IceBreachBreakupBreakup dateBreakup jamBreakup periodBubbler GageButtress DamCADAS (Centralized Automated Data Acquisition System)CalibrationCapillarityCapillary FringeCapillary PotentialCapillary ZoneCatchment AreaCaution StageCFS (Cubic Feet per Second)Cfs-DayChannel InflowChannelizationChannel LeadChannel RoutingChannel (watercourse)Closed BasinClosed Basin Lake FloodingCoastal FloodingColumnar IceComposite HydrographCone of DepressionCone of InfluenceConfined Ground WaterCongressional Organic Act of 1890Conservation StorageConsolidated Ice CoverContentsControl Points: Horizontal and VerticalConveyance LossCooperative ObserverCorn Snow IceCounty Warning Forecast Area (CWFA)CrackCreekCrestCrest GageCrest (Top) of DamCrest Width (Top thickness)Critical DepthCritical FlowCritical Rainfall ProbabilityCritical Rainfall Probability (CRP)Cross-sectional areaCryologyCubic Feet Per SecondCurrent MeterCurtain DrainDaily Flood PeakDamDam FailureDATACOLDATANETDay-Second FeetDCP (Data Collection Platform)Dead StorageDeep Percolation LossDeep SeepageDeep WellDeformed IceDegradationDeltaDendritesDendriticDensity CurrentDensity of SnowDepletion CurveDepression StorageDepth of RunoffDesign CriteriaDetention BasinsDetention StorageDetritusDiffuse IceDirect Flood DamageDirect RunoffDischargeDischarge CurveDischarge TableDistribution (Hydro)GraphDiversionDivideDomestic ConsumptionDomestic Use of waterDownstream SlopeDrainage AreaDrainage BasinDrainage DensityDrainage DivideDrains (Relief Wells)DrawdownDredgingDrifting IceDroughtDrought IndexDry CrackDry Flood proofingDry Flood proofingDry Weather FlowDuration CurveDuration of Ice CoverDynamic IceDynamic Wave Routing Model (DWOPER)E-19a, Abridged Report on River Gage StationE-19, Report on River Gage StationE-3, Flood Stage ReportE-5, Monthly Report of River and Flood conditionsE-7, Flood Damage ReportEarthen (or Earthfill) DamEffective PorosityEffective Precipitation (Rainfall)Effluent SeepageEffluent StreamEmbankmentEmergency Action PlanEmergency ServicesEnergy DissipatorEngineer's LevelEnsemble Hydrologic ForecastingEquilibrium DrawdownEquilibrium Surface DischargeEquilibrium TimeEqui-Potential LineErosionESPEstuaryEsturine watersEsturine ZoneEvaporationEvaporation PanEvaporation RateEvaporimeterEvapotranspirationExcess RainExclusive Flood Control Storage CapacityFaceFederal Emergency Management Agency (FEMA)Federal Snow SamplerFetchField (Moisture) CapacityField Moisture DeficiencyFill DamFirn LineFirn (Snow)Fischer & Porter Punched Tape Recorder GageFlashboardsFlash FloodFlash Flood Guidance (FFG)Flash Flood Statement (FFS)Flash Flood TableFlash Flood Warning (FFW)Flash Flood Watch (FFA)Float Recording Precipitation gageFlocFloeFlood Control StorageFlood CrestFlooded IceFlood Frequency CurveFlood Loss Reduction MeasuresFlood of RecordFlood PlainFlood Plain Information StudiesFlood Potential OutlookFlood PreventionFlood ProblemsFlood ProfileFloodproofingFlood RoutingFlood RoutingFlood StageFlood Statement (FLS)FloodwallFlood Warning (FLW)Flood WaveFloodwayFlow Duration CurveFlowing Artesian WellForebayForecast CrestForecast PointForesightFountainheadFractureFracture ZoneFracturingFrazil IceFrazil SlushFreeboardFree Ground WaterFreezeup dateFreezup jamFrench DrainFrequency CurveFriction HeadFTP (File Transfer Protocol)GageGage DatumGage HeightGage ZeroGaging StationGalleryGateGeohydrologyGeophysicsGlacierGlacier Dammed LakeGOES DCS (Data Collection System)GOES (Geostationary Orbiting Environmental Satellite)Gravity DamGrounded iceGround receive sitesGround WaterGround Water DivideGround Water FlowGround Water HydrologyGround Water MiningGround Water OutflowGround Water OverdraftGround Water RunoffGrout CurtainHADS (Hydrometeorological Automated Data System)Hanging (ice) damHeadHead LossHead RaceHeadward ErosionHeadwater Advisory Program (ADVIS)Headwater Advisory TableHeadwater basinHeadwatersHinge CrackHSA (Hydrologic Service Area)HummockHummocked IceHydraulic Fill DamHydraulic Grade LineHydraulic HeadHydraulic Mean DepthHydraulic PermeabilityHydraulic RadiusHydrographHydrographic SurveyHydrograph SeparationHydrologic BudgetHydrologic CycleHydrologic EquationHydrologic ModelHydrologic Service Area (HSA)Hydrologic ServicesHydrologic UnitHydrologistsHydrologyHydrometeorological TechniciansHydrosphereHydrostatic HeadHyetographIce BoomIce BridgeIce GorgeIce JamIce PushIce RunIce ShoveIce TwitchImpermeableImperviousImportInactive Storage CapacityInch-DegreesInches of RunoffInclined Staff GageIndex of WetnessIndirect Flood DamageIndustrial ConsumptionInfiltrationInfiltration CapacityInfiltration Capacity CurveInfiltration IndexInfiltration RateInfluent SeepageInfluent StreamInitial DetentionInitial LossInitial Moisture DeficiencyInitial Water DeficiencyInland freshwater wetlandsInstantaneous Unit HydrographInstream UseIntangible Flood DamageIntegrated Flood Observing and Warning System (IFLOWS)Interbasin TransferIntercepting DrainInterceptionInterception Storage RequirementsInterception Storage RequirementsInterflowIntermediate ZoneIntermittent StreamInundation MapIrrigated AreaIrrigationIrrigation EfficiencyIrrigation RequirementIsobathIsohyetJettyJokulhlaupJuvenile WaterLag (of a basin)Lag (Time)Laminar FlowLARC (Limited Automatic Report Collector)LengthLentic SystemLevee (Dike)Limited Automatic Remote Collector (LARC)LimnologyLiningLithosphereLittoral ZoneLive CapacityLocal FloodingLocal Flood Warning System (LWFS)Log and Safety BoomLong Term Storage DamsLotic SystemLowland FloodingLysimeterMajor FloodingMAP (Mean Areal Precipitation)Mass CurveMaximum Spillway DischargeMean DepthMeanderMeander BeltMeniscusMeteoric WaterMiners' InchMinor FloodingMission of the Hydrologic Services ProgramMission of the National Weather ServiceModerate FloodingMoisture EquivalentMovable BedMoveable Bed StreamsMultipurpose ReservoirMunicipal Use of WaterNational Environmental Satellite, Data, and Information Service (NESDIS)Natural ControlNavigation MethodsNet RainfallNormal Water Surface Elevation (Normal Pool Level)Normal YearNWSRFS V5.0, or Version 5 (National Weather Service River Forecast Model Version 5)Observation WellOgeeOne Percent Chance Flood (One Hundred Year Flood)OrificeOrographic PrecipitationOutburst FloodOutflow ChannelOutletOutlet Discharge StructureOverland FlowPalmer Drought Severity IndexPancake IceParametric DataParapet WallPartial-Duration Flood SeriesPeak DischargePerched GroundwaterPerched Water TablePercolationPercolation DeepPercolation PathPercolation RatePerennial StreamPermanent ControlPermanent MonumentPermeabilityPermeability CoefficientPermeameterPervious ZonePhreatic SurfacePhreatic waterPhreatic ZonePhreatophytePiezometerPiezometerPiezometric Level (or Surface)PipingPitot TubePluvialPoint DischargePoint PrecipitationPondagePondingPool HeightPore PressurePorosityPrecipitationPrecipitation Processing SystemPressure GagePressure HeadPressure Relief PipesPrice Current MeterProbabilistic Quantitative Precipitation Forecast (PQPF)ProfileProperty ProtectionPuddlePumping HeadQPF (Quantitative Precipitation Forecast)Radioisotope Snow GageRating CurveRating TableReachRecession ConstantRecurrence IntervalReference MarkReflectivityRegional Operations Manual LetterRegulatory FloodwayRemote Observing System Automation (ROSA)ReservoirReservoir Surface AreaReservoir Surface AreaReservoir VolumeResponse TimeRFC (River Forecast Center)RidgeRidge IceRiparian ZoneRiver BasinRiver FloodingRiver Forecast (RVF)River GageRiver Gage DatumRiver Ice Statement (RVI)River Observing StationRiver Recreation Statement (RVR)River Statement (RVS)River Summary (RVA)River SystemRockfill DamRodRolled Filled DamRotten IceRoutingRunoffSacramento Soil Moisture Accounting Model (SACSMA)Satellite Hydrology ProgramSecond-Day FeetSediment Storage CapacitySeepageService HydrologistSheet FlowSHEFPARSSHEF (Standard Hydrologic Exchange Format)Shore IceSite-SpecificSite Specific Hydrologic Prediction System (SSHP)Small Stream FloodingSnow Accumulation and Ablation ModelSnowboardSnow CoreSnow DensitySnow DepthSnowmelt FloodingSnowpackSnow PillowSnow StakeSnow StickSNOw TELemetry (SNOTEL)Snow Water EquivalentSoil Conservation ServiceSoil MoistureSpecific YieldSpillwaySpillwaySpillway CrestSpringStaff GageStageStage III Precipitation ProcessingStage II Precipitation ProcessingStage I Precipitation ProcessingStage IV Precipitation ProcessingStair SteppingStilling BasinStoplogsStorageStorage EquationStorm HydrographStormwater DischargeStormwater DischargeStreamflowStream GageStream SegmentSubsidenceSubstationSubsurface Storm FlowSurcharge CapacitySurface ImpoundmentSurface RunoffSurface WaterSustained OverdraftTailwater HeightThalwegThe National Operational Hydrologic Remote Sensing CenterTheodoliteThe Soil Conservation ServiceThreshold RunoffTipping-Bucket Rain GageToe Drain (or Outfall)Toe of Dam (Upstream and Downstream)Total Gross Reservoir CapacityTraceTrace (of Precipitation)TranspirationTrash RackTravel TimeTurbidityTurning PointUndercurrentUnderflowUnit Hydrograph DurationUnit Hydrograph (or Unitgraph)Unit Hydrograph TheoryUniversal Type Weighting and Recording GageUpstream SlopeUrban Flash Flood GuidanceUrban FloodingU.S. Army Corps of Engineers (USACE)U.S. Bureau of Reclamation (USBR)U.S. Geological Survey (USGS)Vadose ZoneValveVelocity ZonesWatercourseWater EquivalentWater PollutionWatershedWater Supply OutlookWater Supply Outlook (ESS) ProductWater TableWater YearWeighing-type Precipitation GageWeirWet FloodproofingWetlandWire Weight GageZero DatumZoned Embankment DamZone of AerationZone of SaturationZ/R Relationship
Loading conversations.