National Hydrography Dataset Plus (NHDPlus)Applications Sampler

Tommy Dewald / USEPA Office of Water

http://www.wordle.net

Arc Hydro River Workshop

Austin, TX – Dec 1-3, 2010

Arc Hydro River Workshop

Austin, TX – Dec 1-3, 2010

Co-Occurrence of

Impaired Waters and FWS Properties An EPA, FWS and USGS Joint National Assessment

Co-Occurrence of

Impaired Waters and FWS Properties An EPA, FWS and USGS Joint National Assessment

National Fish Hatchery System National Wildlife Refuge System

Impaired Waters

USGS NAWQA SPARROW Modelsfor Major River Basins

Other Noteworthy NHDPlus Applications

Other Noteworthy NHDPlus Applications

• First ever spatially-based national pesticide risk assessment

• Clean Water Act jurisdictional analysis update• ESRI Hydro Base Map • Native American historical migration paths• Aquatic habitat classification• Mapping Critical Loads of Atmospheric Nitrogen

Deposition in the Rocky Mountains

(Share your NHDPlus applications with others at www.epa.gov/waters > NHDPlus Quicklink)

• First ever spatially-based national pesticide risk assessment

• Clean Water Act jurisdictional analysis update• ESRI Hydro Base Map • Native American historical migration paths• Aquatic habitat classification• Mapping Critical Loads of Atmospheric Nitrogen

Deposition in the Rocky Mountains

(Share your NHDPlus applications with others at www.epa.gov/waters > NHDPlus Quicklink)

WATERS Data Architecture

NationalNational HydrographyHydrography Dataset Dataset PlusPlus

Nonpoint Source GrantsNonpoint Source Grants

GRTS

Water Quality StandardsWater Quality Standards

WQSDB

Water Quality Assessments, Water Quality Assessments, Impaired Waters & Impaired Waters &

TTotal otal MMaximum aximum DDaily aily LLoadsoads

ATTAINS

Water Quality MonitoringWater Quality Monitoring

STORET

Reach Address Database(RAD)

((WWatershed atershed AAssessment, ssessment, TTracking & racking & EEnvironmental nvironmental RResultesultSS))(www.epa.gov/waters)(www.epa.gov/waters)

Data Accessible Through WATERSPublic AccessPublic Access• Listed Impaired WatersListed Impaired Waters• Assessed WatersAssessed Waters• BeachesBeaches• Clean Watershed NeedsClean Watershed Needs• Combined Sewer OverflowsCombined Sewer Overflows• CWSRF Benefits ReportingCWSRF Benefits Reporting• Permitted Dischargers Permitted Dischargers • Fish Consumption AdvisoriesFish Consumption Advisories• Fish Tissue DataFish Tissue Data• Impaired Waters with TMDLs Impaired Waters with TMDLs • Sewage No Discharge ZonesSewage No Discharge Zones• Nonpoint Source Projects Nonpoint Source Projects • Water Quality StandardsWater Quality Standards• Water Quality StationsWater Quality Stations

Internal Access OnlyInternal Access Only• Drinking Water IntakesDrinking Water Intakes• Source Water AreasSource Water Areas• Special Appropriations ProjectsSpecial Appropriations Projects

WATERS Web Services

• Public facing Web services for creating and applying NHD events and NHDPlus, including mapping services

– Enhanced from DB and SOAP to HTTP/REST – Code playground and javascript library– Transparency and efficiency for developers

• Visit www.epa.gov/waters/tools

• Performance concerns with EPA IT infrastructure!

• Access to framework geospatial datasets stored in the WATERS Database and to general purpose interactive service panels.

• Dialog boxes providing access to tools, services, and information, such as NHD feature name query, total waters, up/downstream navigation, watershed reports, ATTAINS reports, etc.

• Access to indexed water program features, with hyperlinks to additional attributes, and context sensitive analysis services, such as up/downstream navigation and watershed reports.

Viewing WATERS Data in Google EarthViewing WATERS Data in Google Earth

www.epa.gov/waters/tools

… with Associated Observations

NHD Field Name Value

GNIS_NAME Lubber Run

REACHCODE 02070010001022

F_MEAS 80

T_MEAS 80

Linear ‘Observations’ Are Also Linked to the Hydro Network

Drainage Area DelineationBased Upon Aggregated Catchments

Geo Web Services Need to Perform

• Performance issues for large data volumes

• Boosting performance– Database tuning– Pre-computed network navigation attributes– Pre-computed results geometries– Cloud computing– Others?

Spinning Pinwheel(formerly, the Dreaded Dancing Dot)

Nationalview

100k view(Med res)

24k or better view(High res)

Esri hydro base map(15+ layers)

Internationalview

Delivering web-based hydro map display and network-

based discovery and analysis

Events

Catchments

HUCs•MRB•HUC2•HUC4•HUC6•HUC8•HUC10•HUC12

CatchmentAttributes

EventAttributes

HUCAttributes

Linked Data

Drainage Areas(watersheds)

Containers

Attributes

Hydro Network Catalog

HUCsCatchmentsEvents

(raw data and analytical results)

Questions?

Tommy Dewald, USEPA Office of Waterdewald.tommy@epa.gov

Tommy Dewald, USEPA Office of Waterdewald.tommy@epa.gov

(www.epa.gov/waters > NHDPlus Quicklink)