1 U.S. Environmental Protection Agency NHDPlus is a suite of application-ready geospatial products...

1U.S. Environmental Protection Agency

NHDPlus is a suite of application-ready geospatial products that build upon and extend the capabilities of the National Hydrography Dataset (NHD) by integrating it with the National Elevation Dataset and National Watershed Boundary Dataset. NHDPlus provides:

Updated network relationships enable robust up/downstream

navigation. Additional hydrographic feature names

enable improved map labeling, query-by-name, and linking of

water quality data.

Fourteen different Value-Added Attributes, including stream order, are derived from the underlying NHD and enable

advanced query, analysis and display functionality.

Incremental and cumulative drainage areas for each stream segment in the NHD network enable analysis of associated

landscape characteristics, including temperature,

precipitation and land cover.

Mean annual stream flow volume and velocity for each stream segment in the NHD network enable time-of-travel

and pollutant dilution modeling.

A rich set of hydrographic features

for making maps.

A stream addressing systemfor linking water quality data

to the NHD network.

A drainage network for supporting up/downstream query, analysis and modeling.

The National Hydrography Datasetis a comprehensive set of digital geospatial data that contains information about surface

water features such as streams, rivers and lakes. The NHD provides:

Enhanced NHDNetwork & Names

Value-AddedAttributes

CatchmentsWith Attributes

Flow Volume andVelocity Estimates

Flow direction and accumulation grids associate the land surface (topography)

with the NHD network enabling landscape analysis and

characterization.

Flow Direction &Accumulation Grids

A National Geospatial Surfacewater Framework (http://www.epa.gov/waters)

3232 6464 128128

1616 11

88 44 22


Enhancements to NHDPlusEnhancements to NHDPlus

–Medium Resolution (1:100,00-scale NHD)

• Complete build/refresh toolset (2010)• National refresh using (2011):

– Latest NHD and NED – Now completed WBD– Monthly flow estimates– Ability to incorporate water additions and removals

• Future spatial integration of NHD and WBD through stewardship program

–High Resolution (1:24,000-scale or better NHD)

• State pilots


NHDPlus Data – Tools and Technology

NHDPlus Data – Tools and Technology

Med Res Stewardship

NHDPlus v1.0

• EPA NHD Editing Tools• ArcGis 9.3.1 DT• Shapefiles and dbfs• Geographic NAD 83• NHD v1.06• PGDB2Shp• Shp2PGDB• BuildFlow• XMLExtract• ComID• Reachcode Allocator

• NHD Med Res Snapshot v1.04

• ArcGis 9.3.1 DT• Shapefiles, grids

and dbfs• Geographic NAD 83• ComID, M-Values,

reachcode, ftype, VAAs, Flowdir

NHDPlus v2.0Build/Refresh

• NHD Med Res Snapshot v1.06 (1.07?)

• WBD Snapshot v2.0• ArcGis 9.3.1 DT• SQL Server• Shapefile, grids, dbfs

and mdfs (fgdb?)• Geographic NAD 83• Non-spatial flow table

connections• ComID, M-values,

reachcodes, fcodes, fdate, ReachSMDate

• WBD Reachcode Sync• Non-NHD VAAs• In/out network flag


NHDPlus Applications/Tools

• ArcGis 9.3.1 DT• SQL Server• Shapefile, grids, dbfs and

mdfs• Some pgdb (fgdb?)• Non-spatial flow table

connections• ComID, M-values,

reachcodes, Ftypes, Fcodes, Fdate, ReachSMDate

NHDPlus Tools/Services

• Basin Delineator • Catchment Allocation and

Accumulation• NHD Flow Table Navigator• NHD Releveler• NHDPlus Build/Refresh

User tools: NHD QAQC and NHDPlus VAA Computation

• VAA Navigator• CT River Atlas Basin

Delineation Web Service

NHDPlus Applications –Tools and Technology

NHDPlus Applications –Tools and Technology


WATERS/RAD Data ArchitectureWATERS/RAD

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 WATERSData Accessible Through WATERS

Public 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 Stations (coming in 2010!)Water Quality Stations (coming in 2010!)

Internal Access OnlyInternal Access Only

• Drinking Water IntakesDrinking Water Intakes

• Source Water AreasSource Water Areas

• Special Appropriations ProjectsSpecial Appropriations Projects


WATERS/RAD Technical Architecture

WATERS/RAD Technical Architecture


WATERS Web ServicesWATERS 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


Callable from Flex, Bing andGoogle Maps

Callable from Flex, Bing andGoogle Maps


So What? So What?

• Second National Geographic special issue on Water in recent years (April, 2010)

• 2010 National Water Quality Monitoring Conference (Denver, CO – April 26-29), Monitoring From the Mountains to the Sea, plenary speakers

– Anne J. Castle, Assistant Secretary for Water and Science, U.S. Department of the Interior

– G. Tracy Mehan III, Principal, The Cadmus Group and Former Assistant Administrator for Water, U.S. Environmental Protection Agency

– Thomas L. Tidwell, Chief, U.S. Forest Service– Robert M. Hirsch, Research Hydrologist and Former Associate

Director for Water, U.S. Geological Survey

• We are in trouble in managing our water resources – non-point source pollution, climate change (lack of stationarity) creates moving target, oils spills …


USGS NAWQA SPARROW Modelsfor Major River Basins

USGS NAWQA SPARROW Modelsfor Major River Basins


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


Anticipated NHDPlus Applications

Anticipated 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

(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

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


Maintaining and Enhancing Our Surfacewater Infrastructure

Maintaining and Enhancing Our Surfacewater Infrastructure

• We succeeded at production – putting the plumbing in place (70 million investment?)

• However, stewardship has stumbled largely due to institutional change (production to stewardship) combined with A-76 competitive sourcing fallout – tools and process too cumbersome, loss of institutional knowledge, project management issues, …

• Need to have a sense of urgency about our work - slowly rebounding, but extra resources are one time allocation and another usgs reorganization is rumored

• Being able to articulate a short/mid/long term NHD/WBD (NHDPlus/Streamstats) plan – including technical architecture - will bode well for this program

• I don’t believe that the stewardship community can sustain another several years like the last 3

• We succeeded at production – putting the plumbing in place (70 million investment?)

• However, stewardship has stumbled largely due to institutional change (production to stewardship) combined with A-76 competitive sourcing fallout – tools and process too cumbersome, loss of institutional knowledge, project management issues, …

• Need to have a sense of urgency about our work - slowly rebounding, but extra resources are one time allocation and another usgs reorganization is rumored

• Being able to articulate a short/mid/long term NHD/WBD (NHDPlus/Streamstats) plan – including technical architecture - will bode well for this program

• I don’t believe that the stewardship community can sustain another several years like the last 3


Questions?Questions?

Tommy Dewald, USEPA Office of [email protected]

Tommy Dewald, USEPA Office of [email protected]

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


NHDPlusTools and Applications

NHDPlusTools and Applications

EPA Applications

USGS Applications

• RAD/Waters• CWA Programs

Georeferencing and Hydrologic Analysis

• Waterbody Assessments, Impairments, TMDLs

• National Aquatic Resource Surveys

• Pesticide Reauthorization

• Drinking Water Source Water Protection Areas

• Sparrow Nutrient Modeling

• NAQWA - Major River Basin Modeling

• Great Lakes Restoration Initiative

• StreamStats – current base for some states

• StreamStats – future built using NHDPlus Build/Refresh tools

National User Community

• The Nature Conservancy

• Army COE• FWS• Forest Service• NOAA • Bureau of

Reclamation• Universities:

PSU, TX, ID, KS, MS, KY, MD, CO

• States: KS, NY, PA, NH, CA, NE, TX, more…

• High Resolution NHD Stewards

• ESRI


Geo Web Services Need to Perform

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)

1 U.S. Environmental Protection Agency NHDPlus is a suite of application-ready geospatial products...

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